Dry bean field day in 1984, lead by Howard Schwartz and Dan Legardin, Colorado State University.

Seeds and debris remaining in a bean field after harvest, which could result in sprouting of volunteer plants and carryover of diseases.

Debris remaining in a bean field after harvest, which could result in volunteer plants and a carryover of disease organisms.

Debris remaining in the field after harvest of dry beans, which could result in volunteer plants and disease carryover the following year.

Spectrum weather station set up in the canopy of a bean field for use in disease modeling research.

Spectrum weather station set up in the canopy of a bean field for use in disease modeling research.

Wetness leaf sensor of a Spectrum weather station, set up in the canopy of a bean field for use in disease modeling research.

Location in a bean field with 50% canopy cover.

Location in a bean field with 60% canopy cover.

Location in a bean field with 70% canopy cover.

Location in a bean field with 80% canopy cover.

Location in a bean field with 90% canopy cover.

Location in a bean field with 100% canopy cover.

Dry bean field day in Wray, Colorado, 1997, conducted by Colorado State University Extension.

Dry bean field day in Wray, Colorado, 1998, conducted by Colorado State University Extension.

Dry bean field day in Ovid, Colorado, 1999, conducted by Colorado State University Extension.

Dry bean field day in Ovid, Colorado, 2000, conducted by Colorado State University Extension.

Equipment and set up for airbrush inoculation of plants for research involving bacterial, fungal, and viral diseases of dry beans.

Dry bean variety trials at Scottsbluff, Nebraska, in 1998.

Mayocoba bean plants in the field.

Field of mayocoba yellow beans.

Field of light red kidney beans irrigated with a center pivot system.

Field of light red kidney beans (with tracks from a center pivot sprinkler system).

Solid seeded light red kidney bean plants.

Fungicide being applied to a field of dry beans.

Fungicide application to a field of dry beans, using a Terragator.

A Terragator in use, applying fungicide to a field of dry beans.

Vegetative chimera of bean leaves.

Vegetative chimera of bean leaves.

Minimum-till field of dry beans.

Morphology of a healthy bean seedling.

Morphology of a healthy bean seedling.

Row of bean seedlings.

Close-up view of a healthy bean seedling.

Healthy bean seedlings in the field.

Healthy young bean plants.

Bed-planting of dry beans.

Tractor with sprayer used for pesticide application to dry beans and field corn.

Tractor and disks used for preparation of fields of dry beans and field corn.

Tractor and disks used in preparation of fields for dry beans and field corn.

Harrow equipment used for fields of dry beans and field corn.

Chisel plow used in preparing fields for dry beans and field corn.

Dry bean elevator and storage bins.

Tractor and dry bean planter.

Tractor and dry bean planter in action.

Tractor and dry bean planter in use.

Tractor-driven dry bean planter in use.

Tractor-driven dry bean planter in use.

Dry bean planter

Tractor-driven dry bean planter in use.

Tractor-driven dry bean planter in use.

Side view of a dry bean planter.

Scouting a field of winter wheat in search of volunteer dry bean plants.

Scouting a field of winter wheat in search of volunteer dry bean plants.

Volunteer bean plants in a new crop of dry beans - a potential source of infection with bean rust (Uromyces appendiculatus).

Volunteer bean plants in field corn - a potential source of infection with bean rust (Uromyces appendiculatus).

Volunteer bean plants, a potential source of infection with bean rust (Uromyces appendiculatus).

Volunteer bean plants and debris left from the previous crop - a potential source of infection with bean rust (Uromyces appendiculatus).

Volunteer bean plants and residual debris - a potential source of infection with bean rust (Uromyces appendiculatus).

Volunteer bean plants and residual debris - a potential source of infection with bean rust (Uromyces appendiculatus).

Volunteer bean plant and residual debris - a potential source of infection with bean rust (Uromyces appendiculatus).

Warehouse in Durango, Mexico, serving as storage for dry beans and field corn.

Tractor loaded with dry beans during harvest near Chihuahua, Mexico, in 1992.

Dry beans being threshed during harvest near Chihuahua, Mexico, in 1992.

Bayo beans piled in the field during harvest near Durango, Mexico, in 1982.

A handful of bayo beans, following harvest.

Hands full of market class ojo de cabra beans and pinto beans.

Hands full of market class flor de Mayo beans and mantequilla dry beans.

Graphic illustration of the growth stages of dry beans.

Roots of dry bean plants.

Close view of dry beans windrowed prior to harvest.

Dry bean plants growing in the field.

Dry bean plant pulled up to show morphology of the roots.

Linear irrigation system for dry beans, Kanorado, Kansas.

Linear irrigation system for use on dry beans, Kanorado, Kansas.

An accessory of a linear irrigation system used on a drybean field at Kanorado.

A linear irrigation system used on a drybean field at Kanorado.

An accessory of a  linear irrigation system used on a drybean field at Kanorado.

An accessory of a linear irrigation system used on a drybean field at Kanorado.

Drybean seed testing procedure in the laboratory.

Drybean seed testing by the vaccum infiltration procedure in the laboratory.

A shaker in use on dry bean seeds to test for pathogens as part of drybean seed quality testing procedure.

Drybean seed soaking as part of seed quality testing procedure.

Drybean seeds being decanted after soaking as part of seed quality testing procedure.

Reagents and buffers used for drybean seed quality tests in the laboratory.

Drybeans seed germination test in the laboratory.

An incubator for cultures in the seed pathology laboratory.

Preparation of Xanthomonas campestris pv. phaseoli cultures for inoculation of common bean plants in the greenhouse.

Preparation of Xanthomonas campestris pv. phaseoli cultures for inoculation of common bean plants in the greenhouse.

An upright drybeans field at Bunda College, Lilongwe, Malawi.

An upright drybeans field at Bunda College, Lilongwe, Malawi.

Dry beans emerging from soil that has been rotary-tilled.

Dry beans emerging from soil that has been rotary-tilled.

Chlorotic dry bean plant, caused by a genetic mutation.

Chlorotic dry bean plant, caused by a genetic mutation.

Weeds sprouting as a result of no carryover of herbicides applied in a dry bean field.

Minimum till dry bean field.

Dry beans growing in a minimum-till field.

Tractor cultivating a dry bean field.

Tractor cultivating a field of dry beans.

Tractor cultivating between rows of dry beans.

Chemigation unit for applying pestcides to dry beans.

Double-row field of dry beans, Ault, Colorado.

Double-row field of dry beans.

Tractor and dry bean planter being prepared for planting by Mark Brick.

Close-up view of the seed hopper on a dry bean planter.

Side view of a dry bean planter.

Tractor and dry bean planter

Dry bean planter ready for action.

Drybean seeds for sale at a Ugandan market place.

Drybean seeds for sale at a Ugandan market place.

Drybean seeds for sale at a Ugandan market place.

Drybean pods for sale at a Ugandan market place.

Drybean production field near Sombrete in Mexico.

A market place scene at Chimaltenango in Guatemala.

A market place scene at Chimaltenango in Guatemala where a woman weighs out some drybean seeds for sale.

Threshing of drybeans in northern Ecuador.

A field of drybeans and soybeans in southern Parana, Brazil.

Burning infested drybean residues on a field at Popayan, Colombia.

A polyculture of drybeans, field corn and some other vegetables on a field at Cajamarca, Columbia.

Maize and drybean relevo-system in Colombia.

A sugarcane-drybeans intercropping system in Palmira, Colombia.

A field corn-drybeans intercropping system in CIAT, Colombia.

A soybean-drybeans intercropping system in Parana, Colombia.

A scenic view of a drybean associated system at Chimaltenango, Guatemala.

A drybeans, coffee and papaya associated system at Tenerife, Colombia.

Field of interplanted dry beans, field corn, and rice at Parana, Brazil.

Dry bean cultivator and pesticide applicator.

Tractor-based dry bean cultivator and pesticide applicator.

Tractor-based dry bean cultivator and pesticide applicator.

Close-up of the cultivator on a tractor-based dry bean cultivator and pesticide applicator.

A field of kidney beans being irrigated with a center pivot system.

An equipment for a drip irrigation system used on a drybean field.

A scenic view of a drip irrigated drybean field.

A view of a drip irrigated drybean field.

A field of light red kidney drybean variety used for halo blight (Pseudomonas syringae pv. phaseolicola) and bacterial brown spot (Pseudomonas syringae pv.syringae) research.

A field of light red kidney drybean variety used for halo blight (Pseudomonas syringae pv. phaseolicola) and bacterial brown spot (Pseudomonas syringae pv.syringae) research.

A field of light red kidney drybean variety used for halo blight (Pseudomonas syringae pv. phaseolicola) and bacterial brown spot (Pseudomonas syringae pv.syringae) research.

Canopy of bean plants with a weedy grass growing among them.

Dry bean plant isolated in a field, showing growth habit and plant morphology.

A snap bean field for seed production.

Irrigation of a dry bean field.

Irrigation of a kidney bean field

Maturity differences of dry bean plants in a variety trial in 1999 at Idalia, Colorado.

Dry bean field in use for a variety trial in 1999 at Berthoud, Colorado.

Yellow dry bean plants growing at Burlington, Colorado, 1999.

Yellow dry bean plants growing at Burlington, Colorado, 1999.

Variation in maturation of yellow dry bean plants growing at Burlington, Colorado, 1999.

Field plots in a research study on white mold of dry beans (Sclerotinia sclerotiorum) - Holyoke, Colorado, 1999.

Field plots in a research study on white mold of dry beans (Sclerotinia sclerotiorum) - Holyoke, Colorado, 1999.

Study plots in a disease trial researching bacterial brown spot (Pseudomonas syringae pv. syringae) on dry beans at Holyoke, Colorado, in 1999.

Study plots in a disease trial researching bacterial brown spot (Pseudomonas syringae pv. syringae) on dry beans at Holyoke, Colorado, in 1999.

Study plots in a disease trial researching bacterial brown spot (Pseudomonas syringae pv. syringae) on dry beans at Holyoke, Colorado, in 1999.

Study plots, treated with copper and maneb, in a disease trial researching bacterial brown spot (Pseudomonas syringae pv. syringae) on dry beans at Holyoke, Colorado, in 1999.

Untreated control plots in a disease trial researching bacterial brown spot (Pseudomonas syringae pv. syringae) on dry beans at Holyoke, Colorado, in 1999.

Dry bean plants treated with copper in a disease trial researching bacterial brown spot (Pseudomonas syringae pv. syringae) on dry beans at Holyoke, Colorado, in 1999.

Dry bean plants, treated with copper and maneb, in a disease trial researching bacterial brown spot (Pseudomonas syringae pv. syringae) on dry beans at Holyoke, Colorado, in 1999.

Study plots in a disease trial researching common bacterial blight (Xanthomonas campestris pv. phaseoli) of dry beans at Burlington, Colorado, in 1999.

A field prepared by the slash and burn system to be used for drybean planting at Colombia.

A farmer handplanting drybeans at Tenerife, Colombia.

A scenic view of a drybean field as part of the subsistence farming system at Tenerife, Colombia.

A scenic view of a drybean field as part of the subsistence farming system at Tenerife, Colombia.

A small boy at a bean drying site at Tenerife, Colombia.

An associated culture of drybeans, papaya and banana at Tenerife, Colombia.

An associated culture of drybeans, papaya and banana at Tenerife, Colombia.

A pile of harvested drybeans on a field near Durango, Mexico.

A group of farmers cleaning harvested drybeans on a field near Obregon, Mexico.

A farmer cleaning harvested drybeans on a field near Cuencame, Mexico.

A historic grain storage silo near Ciudad Victoria, Mexico.

A drybean and fieldcorn storage near Ciudad Victoria, Mexico.

Burning crop debris on a field near Popayan in Mexico.

A drybean field in southern Chile.

A scenic view of cleared areas of the Amazon for drybeans and soybean cropping in Brazil.

A scenic view of drybeans and soybean cropping in Parana, Brazil.

Subsistence farmers on their field of drybeans and fieldcorn at Ecuador.

Farmers at Ecuador threshing their drybeans.

A scenic view of an intercropping system at Chimaltenango, Guatemala, involving drybeans, fieldcorn and some other vegetables.

A female farmer weighing out her drybean seeds for sale at an open air market at Chimaltenango, Guatemala.

A tractor cultivating a drybean field near La Selva in Colombia.

A farmer on his intercropped field of drybeans, coffee, papaya and banana at Tenerife, Colombia.

A subsistence drybeans field at Tenerife, Colombia.

A wild variety of drybeans at Tenerife, Colombia.

A fieldcorn and drybeans field at Popayan, Colombia.

A slash and burn land preparation method used for this drybean field at Tenerife, Colombia.

A drybean subsistence farm at Tenerife, Colombia.

A small boy near a platform being used for drybean seeds drying at Tenerife, Colombia.

A scenic view of a drybean field at Tenerife, Colombia.

A scenic view of a drybean, papaya and banana associated culture at Tenerife, Colombia.

Drybean seeds for sale on the open air market in Uganda.

Green drybean pods for sale on the open air market in Uganda.

A scenic view of a drybeans field in Malawi.

A Colorado State University's Bean Variety Trials field day at Fort Collins in 1983.

Planting of drybeans on a CSU bean variety trial field at Fort Collins in 1985.

A farmers field-day at Olathe organised by Colorado State University during a Bean Variety Trial in 1987.

A farmers field-day at Eaton organised by Colorado State University during a Bean Variety Trial in 1987.

A farmers field-day at Wiggins organised by Colorado State University during a Bean Variety Trial in 1987.

A farmers field-day at Wiggins organised by Colorado State University during a Bean Variety Trial in 1993.

A farmers field-day at Sterling organised by Colorado State University during a Bean Variety Trial in 1994.

Dave Nuland, Russ Hynes and Rodolfo V. at a farmers' field-day on a Colorado State University's bean variety trial field in 1994.

S.Singh at a farmers' field-day on a Colorado State University's Bean Variety Trial extension program at  the Agricultural Research, Development and Education Center (ARDEC) in 1994.

A 4-wheeler in opereation on a drybean plot on a CSU Bean Variety Trials program.

A drybeans bactericide trial on a CSU Bean Variety Trials program at Burlington,1991.

Field planting of drybeans on a CSU Bean Variety Trials program at ARDEC,1994.

Field planting of drybeans using the CSU bean planter on a CSU Bean Variety Trials program in 1992.

Field planting of drybeans using a bean planter as part of a Colorado State University's Bean Variety Trial program in 1992.

Bean combine used in variety trials by Colorado State University in 1994.

View of the front end of a bean combine used to harvest dry beans in a variety trial by Colorado State University in 1994.

A drybean seed processing plant showing the elevators and the storage bins.

A drybean seed processing plant showing the elevators and the storage bins.

A truck loading drybeans at the drybeans storage area.

A truck loading drybeans at the drybeans storage area.

A warehouse for drybean storage showing totebags and forklifts.

A warehouse for drybean storage showing totebags and packaged drybeans.

A warehouse for drybean storage showing drybean seedbins.

A drybean seedbin in a drybean warehouse.

Drybeans (Phaseolus coccineus) plants in flower.

Drybeans (Phaseolus coccineus) plants in flower.

A scenic view of drybeans (Phaseolus coccineus) in the wild.

A view of drybeans (Phaseolus coccineus) in the wild.

Wild drybeans (Phaseolus coccineus) at La Tigra, Honduras.

Wild drybeans (Phaseolus coccineus) at La Tigra, Honduras.

Wild drybeans (Phaseolus coccineus) at La Tigra, Honduras.

Red drybean pods in the field.

A drybean field at Tamulipas, Honduras.

A weather station equipment on a drybeans field.

A weather station equipment on a drybeans field.

Seed samples of the Swedish brown-beans.

Seeds of the purple-podded snap bean variety.

A Pickett windrower in operation on a drybean field at the Agricultural Research, Development and Education Center in Colorado.

A Pickett windrower in operation on a drybean field at the Agricultural Research, Development and Education Center in Colorado.

An Orthmann bean rodder-weeder used for field operations.

A drybean combine-harvester in operation in the field.

A drybean combine-harvester in operation in the field.

A drybean combine-harvester in operation in the field.

A drybean combine-harvester in operation in the field.

A farm worker probing a drybean truck at an elevator during a drybean harvesting/storage process.

A truck used for weighing harvested drybeans at an elevator during a drybean harvesting/storage process.

A truck dumping harvested drybeans during a drybean harvesting/storage process.

A storage facility for drybeans.

A mixture of market class dryeban seeds.

A scenic view of a bush snap bean field.

Snap bean plants in the field.

Snap bean plants with pods in the field.

Snap bean plants with pods in the field.

Pole snap bean plants in the field.

Pole snap bean plants in the field.

Pole snap bean plants in the field.

Pole snap bean plants in the field.

The tendrils of pole snap bean plants in the field.

A tendril of a pole snap bean plant in the field.

The flowers of a pole snap bean plant in the field.

The flowers of a pole snap bean plant in the field.

A young pod of a pole snap bean plant in the field.

Dry bean pods shattering in the field.

Dry beans pulled into windrows during harvest.

Combine, ready to harvest windrows of dry beans.

Harvesting windrowed dry beans using a combine.

Harvesting dry beans using a combine.

Dry beans being picked up by a combine during harvest.

Dry beans being picked up by a combine during harvest.

Senninger center pivot irrigation system with wobbler heads, in use on a field of beans.

Aerial view of dry bean field at the Agricultural Research Development and Education Center of Colorado State University, showing a linear move irrigation system.

Supply hose of a linear move irrigation system in use on a bean crop at the Agricultural Research, Development and Education Center of Colorado State University.

A bean rust plot on a CSU Bean Variety Trials program at ARDEC in 1994.

Rhizobial nodules on the roots of a bean plant used in variety trials by Colorado State University.

A drybean nursery at ARDEC-CIAT as part of the CSU Bean Variety Trials program.

A drybean nursery at ARDEC-CIAT as part of the CSU Bean Variety Trials program.

A drybean nursery at ARDEC-CIAT as part of the CSU Bean Variety Trials program.

A CSU Bean Variety Trials  field at Eaton in 1994.

D.Nuland on a Colorado State University's Bean Variety Trial extension program at Eaton in 1994.

Chase's field at Eckley as part of the CSU Bean Variety Trials in 1994.

A field at Sedgwick as part of the CSU Bean Variety Trials in 1985.

Drybean varieties Sacramento light and Red kidney on a field at Sterling in 1993.

Drybean variety CO97373calima-type on a field at Sterling in 1993.

Drybean variety UI906black on a field at Sterling in 1993.

Drybean variety RS101pinto on a field at Sterling in 1993.

Drybean variety UI114pinto on a field at Sterling in 1993.

Drybean variety UI126pinto on a field at Sterling in 1993.

Drybean variety UI129pinto on a field at Sterling in 1993.

Drybean variety NW410pinto on a field at Sterling in 1993.

Drybean variety Othello-pinto on a field at Sterling in 1993.

Drybean variety Olathe-pinto on a field at Sterling in 1993.

Drybean variety Arapaho-pinto on a field at Sterling in 1993.

Drybean variety Bill Z-pinto on a field at Sterling in 1993.

Drybean variety Chase-pinto on a field at Sterling in 1993.

Drybean variety Chase-pinto on a field at Yellow Jacket in 1994.

A field of Othello-pinto, a drybean variety, at Yellow Jacket in 1994.

Drybean variety Bill Z-pinto on a field at Yellow Jacket in 1994.

Drybean variety Arapaho-pinto on a field at Yellow Jacket in 1994.

Drybean variety UI906-black on a field at Yellow Jacket in 1994.

Drybean variety UI906-black on a field at Eaton in 1994.

Drybean variety Sacrmento-LRK on a field at Eaton in 1994.

Drybean variety NW410-pinto on a field at Eaton in 1994.

Drybean variety RS101-pinto on a field at Eaton in 1994.

Drybean variety Othello-pinto on a field at Eaton in 1994.

Drybean variety UI114-pinto on a field at Eaton in 1994.

Drybean variety UI126-pinto on a field at Eaton in 1994.

Drybean variety UI129-pinto on a field at Eaton in 1994.

Drybean variety Arapaho-pinto on a field at Eaton in 1994.

Drybean variety Olathe-pinto on a field at Eaton in 1994.

Drybean variety Bill Z-pinto on a field at Eaton in 1994.

Drybean variety Chase-pinto on a field at Eaton in 1994.

Overview of a field of dry beans used in a variety trial in 1994 at Burlington, Colorado.

Overview of a field of dry beans used in a variety trial in 1994 at Burlington, Colorado.

Overview of a field of "Othello" pinto beans used in a variety trial in 1994 at Burlington, Colorado.

Overview of a field of "NW410" pinto beans used in a variety trial in 1994 at Burlington, Colorado.

Overview of a field of "RS-101" pinto beans used in a variety trial in 1994 at Burlington, Colorado.

Overview of a field of "UI-114" pinto beans used in a variety trial in 1994 at Burlington, Colorado.

Overview of a field of "UI-126" pinto beans used in a variety trial in 1994 at Burlington, Colorado.

Overview of a field of "UI-129" pinto beans used in a variety trial in 1994 at Burlington, Colorado.

Overview of a field of "Olathe" pinto beans used in a variety trial in 1994 at Burlington, Colorado.

Overview of a field of "Arapaho" pinto beans used in a variety trial in 1994 at Burlington, Colorado.

Overview of a field of "Bill Z" pinto beans used in a variety trial in 1994 at Burlington, Colorado.

Overview of a field of "Chase" pinto beans used in a variety trial in 1994 at Burlington, Colorado.

A tractor undertaking an inter-row ripping of beanseedlings.

Bean seedlings used for root rot disease research on benches in a greenhouse.

Bean seedlings used for root rot disease research in water tanks in a greenhouse.

Application of a soil fungicide to potted drybean seeds during a greenhouse root rot disease research.

Inoculation of drybean seedlings with Fusarium wilt in the greenhouse.

Washing of bean roots for Rhizobia inoculation in the greenhouse.

A bean cultivator rigged with ground-rig sprayer for pesticide application.

A bean cultivator rigged with ground-rig sprayer for pesticide application.

A drybeans field-day for farmers at Holyoke.

The exterior of a greenhouse facility at Colorado State University used for dry beans research.

Drybean seedlings in a greenhouse at Colorado State University.

Volunteer bean plants on the edge of a field of winter wheat - a potential source of the carrying over of bean diseases.

Field of mature dry bean plants showing wheel tracks from improper use of farm equipment that could lead to soil compaction and spread of diseases such as Fusarium root rot and Fusarium wilt.

Plants removed from soil and the soil removed to show the effect of soil compaction on bean roots.

Soil penetrometer being used to measure soil compaction in a bean field.

Dew chamber for use in applying pesticides to experimental bean plants in the greenhouse.

Applying pesticide to experimental bean seedlings in the greenhouse.

Remote electronic weather station used for research on onions and dry beans - Greeley, Colorado.

Remote electronic weather station used in disease modeling during research on onions and dry beans - Kersey, Colorado.

Remote electronic weather station used in research modeling diseases of dry beans and onions - Lucerne, Colorado.

Using a tractor planter in a dry bean variety trial conducted by Colorado State University.

Cultivation and early-season application of copper spray to dry beans.

Mid-season scenic view of a dry bean field near Yellow Jacket, Colorado.

A view of a bean seed production field near Olathe.

A close-up view of a mid-season bean field near Burlington.

Mid-season scenic view of a dry bean field near Fort Morgan.

A scenic view of a dry bean field near Burlington showing the gated pipe irrigation system used.

A bean field at Holyoke showing the Center-pivot irrigation system used.

A bean field at Yuma showing the LIPA irrigation system used.

A close-up view of a bean flower bud.

A close-up view of a bean flower bud.

A crop management system showing the cultivation/ditching of a bean field.

A scenic view of a bean field in late season..

A windrower harvestor in operation during bean field harvesting.

A harvested bean field showing bean debris after the operation of a windrower harvestor.

A harvested bean field showing a close-up view of bean debris after the operation of a windrower harvestor.

A bean filed harvesting operation using a combine harvestor.

A bean field harvesting operation using a combine harvestor.

Winnowing of dry beans by hand -- near Chihuahua, Mexico.

Piles of dry beans in a field near Durango, Mexico.

Hand threshing of dry beans near Quito, Ecuador.

Field of dry beans on a steep slope near Palmira, Colombia.

Intercropping of dry beans, coffee and papaya near Palmira, Colombia.

Field of dry bean plants showing development of the canopy - canopy has just closed over the furrow between rows.

Field of pinto beans being irrigated by a center pivot system.

Center pivot irrigation of a field of pinto beans.

Center pivot irrigation of a field of pinto beans -- close-up view of sprinkler head.

Field of kidney beans irrigated with a center pivot system.

Scenic view of a field of dry beans during a rainstorm.

Mature pods of kidney beans, on the plants.

Three pods of light red kidney beans, opened to show different stages of maturity of the seeds.

Mature field of great northern beans.

Windrows of great northern beans prepared for harvest.

Windrows of great northern beans prepared for harvest.

Windrows of great northern beans prepared for harvest.

A drybean field near a turkey farm.

Field of dry beans planted with multiple rows of plants between furrows, Wray, Colorado.

Field of dry beans planted 3 rows to a bed - Julesburg, Colorado.

Field of dry beans planted 3 rows to a bed - Julesburg, Colorado.

Center pivot system in use, irrigating a field of dry beans.

Center pivot system in use, irrigating a field of dry beans.

Center pivot system in use, irrigating a field of dry beans.

Center pivot system in use, irrigating a field of dry beans.

Dry bean planter in use, Holyoke, Colorado.

Side view of a dry bean cultivator - Holyoke, Colorado.

Close view of a dry bean cultivator and drop nozzle of a pesticide applicator - Holyoke, Colorado.

Dry bean cultivator and ground sprayer - Burlington, Colorado.

Dry bean cultivator and ground sprayer - Burlington, Colorado.

Cultivating dry beans using a tractor cultivator - Eckley, Colorado.

Cultivating dry beans using a tractor cultivator - Eckley, Colorado.

Hooded cultivator and sprayer, applying copper onto dry beans - Grant, Nebraska.

Hooded cultivator and sprayer, applying copper onto dry beans - Grant, Nebraska.

Airplane spraying maneb on dry beans near Burlington, Colorado.

Combine harvesting dry beans near Julesburg, Colorado.

RoGator used to apply pesticides on fields of dry beans.

RoGator used to apply pesticides on fields of dry beans.

Field sprayer used in applying pesticides to fields of dry beans.

Field sprayer used in applying pesticides to fields of dry beans.

Volunteer corn plant growing in a field of dry beans.

Field inspection of dry beans, post-flowering, in order to certify the seed produced.

Field inspection of dry beans, post-flowering, in order to certify the seed produced.

Manure spreader applying fertilizer by a field of dry beans.

Tractor-driven cutter used to harvest dry beans.

Side view of a tractor-driven cutter used to harvest dry beans.

Tractor-driven cutter used to harvest dry beans.

Close-up view of the knives on a tractor-driven cutter used to harvest dry beans.

Close view of dry bean plants being harvested with a mechanical cutter.

Mature pinto bean plants, ready for harvest.

Mature pinto bean plants, cut and ready for harvest.

Pinto beans cut and lying in windrows in the field, ready for harvest.

Dry beans cut and lying in windrows in the field, ready for harvest.

Dry beans cut and lying in windrows in the field, ready for harvest.

Dry beans cut and lying in windrows in the field, ready for harvest.

Plots used in research on bean rust (Uromyces appendiculatus) at the Agricultural Research, Development and Education Center of Colorado State University.

View of the roots of two dry bean plants.

Close view of a dry bean plant, showing flower buds.

Dry bean plants with flower buds forming.

Dry bean plants beginning to form flower buds.

Dry bean seedling at the crook neck stage, emerging from the soil.

Dry bean seedling at the crook neck stage, emerging from the soil.

Bean seedlings emerging from the soil.

Close-up view of a dry bean seedling emerging from the soil.

Dry bean seedling newly emerged from the soil and about to spread the first pair of leaves.

Field of dry bean seedlings.

Field of young dry bean plants.

View of young dry bean plants in the field, showing their early development.

Scenic view of a field of healthy and vigorous dry bean plants.

A healthy field of dry bean plants.

Plots used by Colorado State University to research the use and effects of bactericide on dry beans at Holyoke, Colorado.

Plots used by Colorado State University to research the use and effects of bactericide on dry beans at Burlington, Colorado.

Tractor-driven windrower used during harvest of dry beans.

View of a windrower used during harvest of dry beans.

Dry bean variety trial near Holyoke, Colorado.

Close-up of the end of a row of the dry bean, "California Early Kidney," included in a variety trial near Holyoke, Colorado.

Close-up of the end of a row of the dry bean cultivar, "Black Bean 94-15," included in a variety trial near Holyoke, Colorado.

Close-up of the end of a row of the dry bean, "Red Mexican 94-4978," included in a variety trial.

Close-up of the end of a row of the dry bean, "Chase Pinto," included in a variety trial near Holyoke, Colorado.

Close-up of the end of a row of the dry bean, "Fisher Pinto," included in a variety trial near Holyoke, Colorado.

Close-up of the end of a row of the dry bean, "Arapaho Pinto," included in a variety trial near Holyoke, Colorado.

Close-up of the end of a row of the dry bean, "Bill Z Pinto," included in a variety trial near Holyoke, Colorado.

The colorful seeds of Anasazi dry beans.

The colorful seeds of  Diacol Calima dry beans.

Seeds of light red kidney beans.

Seeds of cranberry dry beans.

Seeds of small red dry beans.

Seeds of pink dry beans.

Seeds of pinto beans.

Seeds of Swedish brown dry beans.

Seeds of yellow eye dry beans.

Seeds of black beans.

Seeds of garden snap beans during a seed quality inspection exercise.

Seeds of navy beans.

Seeds of great northern dry beans.

Seeds of white kidney beans.

A mix of the seeds of 16 various pulse crops, including dry beans, lentils, and peas.

The colorful seeds of carioca dry beans.

Seeds of manzano dry beans.

The colorful seeds of Flor de Mayo dry beans.

Field of mature pinto bean plants, ready for harvest.

Field of mature dry bean plants, ready for harvest.

Mature pinto bean plants, ready for harvest.

Mature pinto bean plants, dry and ready for harvest.

Close-up view of mature pinto bean pods, ready for harvest.

Kidney beans at two stages of crop development due to planting dates: green and maturing plants on the left; dried, in windrows and being harvested on the right.

Mature dry bean plants, ready for harvest near Delta, Colorado.

Mature dry bean plants, ready for harvest near Delta, Colorado.

Mature dry bean plants, ready for harvest - Delta, Colorado.

Sampling and weighing dry beans at an elevator.

Grading a sample of dry beans at the elevator.

Kidney beans being harvested with a combine.

Combine harvesting kidney beans.

Kidney beans being harvested with a combine.

Combine unloading newly harvested kidney beans into a truck.

Combine unloading newly harvested kidney beans into a truck.

Combine unloading newly harvested kidney beans into a truck, with a close view of the front of the combine.

Unloading kidney beans from a truck at the elevator.

Using a tractor cutter to cut pinto bean plants in the field.

Tractor-driven dry bean lifter and rodder.

Rodding pinto beans from the soil in preparation for harvest, using a tractor-driven rodder.

Dry bean plants that have been rodded and placed into windrows for harvest.

Combine harvesting pinto beans in the field.

Early season cultivation of dry beans and application of copper spray.

Flea beetles defoliating a dry bean plant.

Thrips infesting the underside of a dry bean leaf.

Dry bean planter used by Colorado State University in variety trials.

Early-season cultivation of dry beans.

Close-up view of a combine header and combine in action, during harvest of dry beans.

Combine in the field, harvesting and threshing dry beans.

Combine harvesting and threshing dry beans in the field.

Combine in the field, harvesting and threshing dry beans, creating straw.

Unloading harvested dry beans from the combine into a truck.

Unloading light red kidney beans from the combine and into the bed of a truck for transporting.

Dry bean market classes: prime quality great northern beans, pinto beans, and light red kidney beans.

Market class navy beans.

Market class cranberry dry beans.

Market class white kidney beans.

Market quality small red beans.

Market quality pink beans.

Dry bean cultivator adapted for early-season spraying of copper.

Thresher used in harvesting small plots of dry beans.

Foggy and rainy conditions in a dry bean field - environmental factors conducive to fostering disease outbreaks.

Foggy conditions near a dry bean field - an environmental factor conducive to fostering disease outbreaks.

Application of bactericide to dry bean plots at Burlington, Colorado.

Using a soil penetrometer to measure soil compaction in a dry bean field.

A scenic view of the West Slope of a snap bean field.

A scenic view of the West Slope of a snap bean field.

Snap bean plants in flower in the field.

Snap bean plants in flower in the field.

Mature field of the dry bean cultivar "Snyder" in a variety trial.

Dry bean field being used in a variety trial near Berthoud, Colorado.

Dry bean field being used in a variety trial near Berthoud, Colorado.

Canopy development in rows of dry bean plants.

Field of dry bean plants showing development of the canopy.

Field of dry bean plants showing development (closure) of the canopy.

Seeds of the nuna/popping beans during a seed quality inspection exercise. Image shows post-popped seeds.

Popping bean (also known as nuna bean) seeds during a seed quality inspection exercise. Image shows pre-popped seeds.

Seeds of the nuna/popping beans during a seed quality inspection exercise. Image shows both pre and post-popped seeds.

Seeds of the tan variety of popping beans during a seed quality inspection exercise. Image shows pre-popped seeds.

Seeds of the speckled variety of popping beans during a seed quality inspection exercise. Image shows pre-popped seeds.

Seeds of the reddish-purple variety of popping beans during a seed quality inspection exercise. Image shows pre-popped seeds.

A colorful mixture of seeds of Andean bean varieties.

Cutter used during harvest of dry beans.

Plots of dry beans in a variety trial.

Plots of dry beans in a variety trial.

Plots of dry beans in a variety trial.

Plots of dry beans in a variety trial.

Plots of dry beans in a variety trial.

Plots of dry beans in a variety trial.

Plots of dry beans in a variety trial.

Plots of dry beans in a variety trial.

Tractor-driven dry bean planter.

Tractor-driven dry bean planter.

Back end of a dry bean planter.

Bags of certified pinto beans.

Bags of certified dry bean seed.

Bags of certified dry bean seed.

Dry bean variety trial, Burlington, Colorado, conducted by Colorado State University in 1998.

Dry bean variety trial, Burlington, Colorado, conducted by Colorado State University in 1998.

Field used in a dry bean variety trial, Burlington, Colorado, conducted by Colorado State University.

Field of dry beans in a variety trial, Eaton, Colorado, 1998.

Volunteer dry beans growing in an alfalfa field.

Dry bean plant growing as a weed in an alfalfa field.

Volunteer dry bean plants growing as weeds in an alfalfa field.

Volunteer dry bean plant growing as a weed in a corn field.

Scenic view of a dry bean field in Nebraska.

A scenic view of a drybean field in Western Nebraska.

Plant morphological differences between drybean varieties at maturity.

Plant morphological differences between drybean varieties at maturity.

Side-roll sprinklers in action, irrigating a dry bean field.

Very young dry bean seedlings.

The side-roll irrigation system in use on a drybean field at Idaho.

The side-roll irrigation system in use on a drybean field at Idaho.

Drybean seedlings grown in the mist chamber of a greenhouse.

Potted dry beans growing in a research greenhouse facility.

Potted dry beans growing in a research greenhouse facility.

A drybean field-day at the Agricultural Research, Development and Education Center in Coloardo.

A drybean nursery at the Agricultural Research, Development and Education Center in Coloardo during a drybean field-day.

A drybean nursery at the Agricultural Research, Development and Education Center in Coloardo during a drybean field-day.

A Colorado State University's drybean test plot at the Agricultural Research, Development and Education Center in Coloardo during a drybean field-day.

Morphological  characteristics of drybean pods at maturity.

Morphological  characteristics of drybean pods at maturity.

Morphological  characteristics of drybean pods at maturity.

Morphological  characteristics of drybean pods at maturity.

A drybean variety trial field at maturity.

A drybean variety trial field at maturity.

A drybean variety trial field at maturity.

A drybean variety trial field at maturity.

A drybean variety trial field at maturity.

A drybean variety trial field at maturity.

A drybean variety trial field at maturity.

A drybean variety trial field at maturity.

A drybean variety trial field at maturity.

A drybean variety trial field at maturity.

A drybean variety trial field at maturity.

A drybean variety trial field at maturity.

A drybean variety trial field at maturity.

A drybean variety trial field at maturity.

A drybean variety trial field at maturity.

A drybean variety trial field at maturity.

A drybean variety trial field at maturity.

A drybean variety trial field at maturity.

A drybean variety trial field at maturity.

A drybean variety trial field at maturity.

Morphological features of  a drybean flower and young pods on a field plant.

A scenic view of a maturing drybeans field.

A view of a drybean variety test plot.

A scenic view of a drybean test plot used for variety trials.

A scenic view of a drybean test plot used for variety trials.

A combine harvester in operation during drybeans harvesting in the field.

A combine harvester in operation during drybeans harvesting in the field.

A combine harvester in operation during drybeans harvesting in the field.

A combine harvester in operation during drybeans harvesting in the field.

An irrigated drynbeans field.

A irrigated snap bean (Phaseolus vulgaris) field.

A irrigated snap bean (Phaseolus vulgaris) seed field.

A scenic view of a drybean field in Malawi.

A scenic view of a harvested drybean field at Alvin Whitman near Eaton in 2003.

A scenic view of a harvested drybean field at Alvin Whitman near Eaton in 2003.

A scenic view of a harvested drybean field at Alvin Whitman near Eaton in 2003.

A drybean field during harvesting at Alvin Whitman near Eaton in 2003.

dry beans 1.5 cm long

closeup of dry bean 1.5 cm long

insect damage of dry bean

Pinto beans they are named for its molted skin

closeup of dry Pinto bean

Participants of a dry bean field day held at Colorado, USA, on a demonstration field. 

A  dry bean field at Colorado, USA at the 'matured' stage of growth and development. 

A dry bean field at Colorado, USA, at the 'matured' stage of growth and development.

Participants of a dry bean field day held at Colorado, USA, on a demonstration field.

Participants of a dry bean field day held at Colorado, USA, on a demonstration field.

A dry bean field at Colorado, USA, at the 'matured' stage of growth and development.

Barry Ogg on a demonstration field during a dry bean field day held at Colorado, USA.

Participants of a dry bean field day held at Colorado, USA.

Participants of a dry bean field day held at Colorado, USA.