Howard F. Schwartz's Images
Title: Professor of Plant Pathology & Assoc. Dept. HeadOrganization: Colorado State University
Unit: Plant Pathology
Country: United States
Web: http://www.alliumnet.com/index.htm
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Howard F. Schwartz is a Professor of Plant Pathology & Associate Department Head in the Department of Bioagricultural Sciences and Pest Management at Colorado State University. His Research and Extension Interests include Integrated Pest Management (IPM) - particularly of rust and white mold of dry bean as well as bacterial diseases and Iris Yellow Spot Virus of onion. Specific areas include management by disease survey, a reporting network supported by GPS/GIS technology, disease resistance, cultural practices, and timely applications of pesticides in response to environmental monitoring and crop/pest modeling. He is also interested in making sure the delivery of time-sensitive information on Integrated Pest Management and Crop Production Systems is coordinated via traditional methods (newsletters, bulletins, alerts, meetings, field days) and via the internet (Legume Pipe, VegNet, Allium Net). He is also the person leading and coordinating the CSU Node of the Bugwood Network. |
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| 185 Images of 16 Subjects | View Subject List | View Image Details | View Thumbnails |
| Image | Subject Name | Scientific Name | Description |
|---|---|---|---|
| 5364018 | paraquat | Paraquat spot damage on a dry bean leaf. | |
| 5362997 | 2,4-D | Damage to dry bean plants caused by spraying 2,4-D directly onto the plants. | |
| 5357153 | clopyralid | Damage to a pinto bean plant resulting from the use of clopyralid herbicide. | |
| 5357154 | clopyralid | Damage to pinto bean plants from use of clopyralid herbicide. | |
| 5357155 | clopyralid | Damage to leaves of pinto bean plants caused by clopyralid herbicide. | |
| 5357156 | clopyralid | Damage to pinto bean plant and pods, caused by use of clopyralid herbicide. | |
| 5357157 | clopyralid | Damage to pods of pinto beans resulting from the use of clopyralid herbicide. | |
| 5357158 | clopyralid | Damage to the roots of a pinto bean plant, resulting from the use of clopyralid. | |
| 5357159 | clopyralid | Damage to the roots of a pinto bean plant caused by use of a clopyralid herbicide. | |
| 5357649 | clopyralid | Clopyralid herbicide damage to a field of pinto beans. | |
| 5357650 | clopyralid | Damage to a field of pinto beans from spraying adjacent weeds with clopyralid. | |
| 5357651 | clopyralid | Damage to pinto bean plants from use of clopyralid herbicide. | |
| 5357652 | clopyralid | Damage to pinto bean plants from use of clopyralid herbicide. | |
| 5389493 | herbicides (general) | Dry bean leaves showing chlorotic symptoms of herbicide damage. | |
| 5389492 | herbicides (general) | Dry bean leaves showing chlorotic symptoms of herbicide damage. | |
| 5389490 | herbicides (general) | Dry bean leaves showing chlorotic symptoms of herbicide damage. | |
| 5389491 | herbicides (general) | Dry bean leaves showing chlorotic symptoms of herbicide damage. | |
| 5389488 | herbicides (general) | A dry bean plot used for herbicide damage research at Colorado, USA. | |
| 5389489 | herbicides (general) | A dry bean plot used for herbicide damage research at Colorado, USA. | |
| 5389487 | herbicides (general) | A dry bean field used for herbicide damage research at Colorado, USA. | |
| 5389485 | herbicides (general) | Sampling of dry bean leaves showing chlorotic symptoms of herbicide damage. | |
| 5389486 | herbicides (general) | Sampling of dry bean leaves showing chlorotic symptoms of herbicide damage. | |
| 5389484 | herbicides (general) | Sampling of dry bean leaves showing chlorotic symptoms of herbicide damage. | |
| 5389483 | herbicides (general) | Sampling of dry bean leaves showing chlorotic symptoms of herbicide damage. | |
| 5389482 | herbicides (general) | Sampling of dry bean leaves showing chlorotic symptoms of herbicide damage. | |
| 5389480 | herbicides (general) | Sampling of dry bean leaves showing chlorotic symptoms of herbicide damage. | |
| 5389481 | herbicides (general) | Sampling of dry bean leaves showing chlorotic symptoms of herbicide damage. | |
| 5389423 | onion thrips | Thrips tabaci | Kaolinite dust/spray applied to onion plants as part of onion thrips management strategy on a field at Colorado, USA. |
| 5389424 | onion thrips | Thrips tabaci | Kaolinite dust/spray applied to onion plants as part of onion thrips management strategy on a field at Colorado, USA. |
| 5389422 | onion thrips | Thrips tabaci | Kaolinite dust/spray applied to onion plants as part of onion thrips management strategy on a field at Colorado, USA. |
| 5389421 | onion thrips | Thrips tabaci | Kaolinite dust/spray applied to onion plants as part of onion thrips management strategy on a field at Colorado, USA. |
| 5364463 | pesticides | Soil fumigation probe and gauge in use in a fruit orchard. | |
| 5358203 | pesticides | Bean seedling displaying symptoms of damage from application of dicamba. | |
| 5358202 | pesticides | Bean seedling displaying symptoms of damage from application of dicamba. | |
| 5358970 | herbicides (general) | Loss of dry bean plants due to residual carryover of applied herbicide. | |
| 5358976 | herbicides (general) | Herbicide carryover effects in dry beans. | |
| 5358978 | herbicides (general) | Damage to dry beans due to herbicide carryover. | |
| 5358988 | copper toxicity | Field plots of dry beans near Holyoke, Colorado, displaying phytotoxic damage due to application of copper. | |
| 5358989 | copper toxicity | Field plots of dry beans displaying phytotoxic damage due to application of copper. | |
| 5357160 | quizalofop-P | Kidney bean leaves showing damage from use of Assure herbicide and crop oil. | |
| 5357161 | quizalofop-P | Kidney bean leaves showing damage from use of Assure herbicide and crop oil to control volunteer corn. | |
| 5357162 | quizalofop-P | Kidney bean leaves showing damage from use of Assure herbicide and crop oil. | |
| 5357163 | quizalofop-P | Kidney bean leaves showing damage from use of Assure herbicide and crop oil. | |
| 5357164 | quizalofop-P | Kidney bean leaves showing damage from use of Assure herbicide and crop oil. | |
| 5357165 | quizalofop-P | Kidney bean leaves showing damage from use of Assure herbicide and crop oil. | |
| 5367293 | pesticides | A pesticide storage facility at San Luis Valley Research Center. | |
| 5364054 | garden onion | Allium cepa | An tractor used for soil fumigation operations in the field. |
| 5361379 | common bean | Phaseolus vulgaris | A bean cultivator rigged with ground-rig sprayer for pesticide application. |
| 5361378 | common bean | Phaseolus vulgaris | A bean cultivator rigged with ground-rig sprayer for pesticide application. |
| 5361366 | common bean | Phaseolus vulgaris | Application of a soil fungicide to potted drybean seeds during a greenhouse root rot disease research. |
| 5359298 | zucchini | Cucurbita pepo var. pepo | An aerial application of pesticides to a summer squash field. |
| 5359822 | pesticides | A Tyler tractor specially designed for ground application of pesticides. | |
| 5359823 | pesticides | A Tyler tractor specially designed for ground application of pesticides. | |
| 5365902 | spray planes | The nozzles of an airplane/spray plane used for aerial application of pesticides. | |
| 5365903 | spray planes | The nozzles of an airplane/spray plane used for aerial application of pesticides. | |
| 5365901 | spray planes | An airplane/spray plane used for aerial application of pesticides. | |
| 5365900 | spray planes | An airplane/spray plane used for aerial application of pesticides. | |
| 5365899 | spray planes | An airplane/spray plane used for aerial application of pesticides. | |
| 5361633 | pesticides | A RoGator tractor used for pesticide application in operation in the field. | |
| 5361632 | pesticides | A RoGator tractor used for pesticide application in the field. | |
| 5359220 | pesticides | A pesticide storage facility complex at ARDEC. | |
| 5362432 | pesticides | Preparing fungicide for application in the field, demonstrating proper personal protective wear and technique. | |
| 5364068 | pesticides | Preparation of a fungicide for plot application. | |
| 5359878 | pesticides | Pesticide (Phenoxy) damage on a snap bean field. | |
| 5359877 | pesticides | Pesticide (Phenoxy) damage on a snap bean field. | |
| 5359876 | pesticides | Pesticide (Phenoxy) damage on a snap bean field. | |
| 5360984 | pesticides | Pesticide application to a bush snap bean field. | |
| 5362434 | pesticides | Fungicide application to a potato field. | |
| 5362433 | pesticides | Fungicide application to a potato field. | |
| 5365681 | pesticides | A fungicide trial on an ARDEC potato field in 2002. | |
| 5364332 | herbicides (general) | A scenic view of herbicide (phenoxy) damage to a snap bean field. | |
| 5364331 | herbicides (general) | A scenic view of herbicide (phenoxy) damage to a snap bean field. | |
| 5362658 | paraquat | An application of gramoxone, a contact herbicide, to potato vines in the field. | |
| 5359055 | clopyralid | Damage to potato plants due to herbicide (Stinger or Curtail) carry over. | |
| 5359053 | clopyralid | Damage to potato plants due to herbicide (Stinger or Curtail) carry over. | |
| 5359054 | clopyralid | Damage to potato plants due to herbicide (Stinger or Curtail) carry over. | |
| 5359052 | clopyralid | Damage to a potato plant due to herbicide (Stinger or Curtail) carry over. | |
| 5359051 | clopyralid | Damage to a potato plant due to herbicide (Stinger or Curtail) carry over. | |
| 5359049 | clopyralid | Damage to potato plants due to herbicide (Stinger or Curtail) carry over. | |
| 5359050 | clopyralid | Damage to potato plants due to herbicide (Stinger or Curtail) carry over. | |
| 5359047 | clopyralid | Damage to potato plants due to herbicide (Stinger or Curtail) carry over. | |
| 5359048 | clopyralid | Damage to potato plants due to herbicide (Stinger or Curtail) carry over. | |
| 5359042 | clopyralid | Damage to a potato field due to herbicide (Stinger or Curtail) carry over. | |
| 5359041 | clopyralid | Damage to a potato field due to herbicide (Stinger or Curtail) carry over. | |
| 5359039 | clopyralid | Damage to a potato field due to herbicide (Stinger or Curtail) carry over. | |
| 5359040 | clopyralid | Damage to a potato field due to herbicide (Stinger or Curtail) carry over. | |
| 5359045 | clopyralid | Damage to a potato plant due to herbicide (Stinger or Curtail) carry over. | |
| 5359046 | clopyralid | Damage to a potato plant due to herbicide (Stinger or Curtail) carry over. | |
| 5359044 | clopyralid | Damage to potato plants due to herbicide (Stinger or Curtail) carry over. | |
| 5359043 | clopyralid | Damage to a potato plant due to herbicide (Stinger or Curtail) carry over. | |
| 5362711 | chemicals | Close-up view of crop oil damage to the leaf of a corn plant. | |
| 5362710 | chemicals | Close-up view of crop oil damage to the leaf of a corn plant. | |
| 5359342 | corn | Zea mays | View from behind of a sprayer applying herbicide over corn stubble. |
| 5359341 | corn | Zea mays | Sprayer applying herbicide over corn stubble. |
| 5359340 | corn | Zea mays | Sprayer applying herbicide over corn stubble. |
| 5359339 | corn | Zea mays | Herbicide sprayer on corn stubble. |
| 5359898 | common bean | Phaseolus vulgaris | 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. |
| 5358792 | common wheat | Triticum aestivum | Spray and mixing tanks for applying pesticides to winter wheat. |
| 5358791 | common wheat | Triticum aestivum | Spray and mixing tanks for applying pesticides to winter wheat. |
| 5358789 | common wheat | Triticum aestivum | Spray coupe for use in applying pesticides to winter wheat. |
| 5366107 | pesticides | Pesticide application on a drybeans field using an airplane. | |
| 5366108 | pesticides | Pesticide application on a drybeans field using an airplane. | |
| 5366106 | pesticides | Pesticide application on a drybeans field using an airplane. | |
| 5365331 | chemicals | Damage to dry bean plants caused by the drift of a phenoxy herbicide. | |
| 5365330 | chemicals | Damage to dry bean plants caused by drift of a phenoxy herbicide. | |
| 5365329 | chemicals | Damage to dry bean plants caused by drift of phenoxy herbicides. | |
| 5362998 | chemicals | Damage to light red kidney bean plants caused by phenoxy herbicide. | |
| 5362999 | chemicals | Damage to a light red kidney bean plant due to phenoxy herbicide. | |
| 5363001 | chemicals | Phenoxy damage on light red kidney bean plants. | |
| 5363002 | chemicals | Phenoxy herbicide damage to leaves of a light red kidney bean plant. | |
| 5364019 | chemicals | Cupping of bean leaves due to phenoxy damage to the canopy. | |
| 5364020 | chemicals | "Cobra head" in a dry bean plant, a symptom of phenoxy damage to the leaves. | |
| 5364021 | chemicals | Strapped leaves in a dry bean plant - a symptom of phenoxy damage. | |
| 5364022 | chemicals | Swollen branches of a bean plant, a symptom of damage from phenoxy drift into the field. | |
| 5364023 | chemicals | Soil excavated from the bases of dry bean plants to show squarestem disease and damage to roots caused by phenoxy drift or carryover to the bean field. | |
| 5364024 | chemicals | Damage to the canopy of dry bean plants resulting from phenoxy drift into the field. | |
| 5363577 | common bean | Phaseolus vulgaris | Plots used by Colorado State University to research the use and effects of bactericide on dry beans at Burlington, Colorado. |
| 5363576 | common bean | Phaseolus vulgaris | Plots used by Colorado State University to research the use and effects of bactericide on dry beans at Holyoke, Colorado. |
| 5364075 | common bean | Phaseolus vulgaris | Application of bactericide to dry bean plots at Burlington, Colorado. |
| 5364071 | common bean | Phaseolus vulgaris | Dry bean cultivator adapted for early-season spraying of copper. |
| 5363952 | dry bean rust | Uromyces appendiculatus | Focal location of bean rust (Uromyces appendiculatus) infection in a field, adjacent to a plot where fungicide has been applied. |
| 5363910 | common bean | Phaseolus vulgaris | Early season cultivation of dry beans and application of copper spray. |
| 5362554 | common bean | Phaseolus vulgaris | Field sprayer used in applying pesticides to fields of dry beans. |
| 5362553 | common bean | Phaseolus vulgaris | Field sprayer used in applying pesticides to fields of dry beans. |
| 5362552 | common bean | Phaseolus vulgaris | RoGator used to apply pesticides on fields of dry beans. |
| 5362551 | common bean | Phaseolus vulgaris | RoGator used to apply pesticides on fields of dry beans. |
| 5362549 | common bean | Phaseolus vulgaris | Airplane spraying maneb on dry beans near Burlington, Colorado. |
| 5362548 | common bean | Phaseolus vulgaris | Hooded cultivator and sprayer, applying copper onto dry beans - Grant, Nebraska. |
| 5362547 | common bean | Phaseolus vulgaris | Hooded cultivator and sprayer, applying copper onto dry beans - Grant, Nebraska. |
| 5362544 | common bean | Phaseolus vulgaris | Dry bean cultivator and ground sprayer - Burlington, Colorado. |
| 5362543 | common bean | Phaseolus vulgaris | Dry bean cultivator and ground sprayer - Burlington, Colorado. |
| 5362542 | common bean | Phaseolus vulgaris | Close view of a dry bean cultivator and drop nozzle of a pesticide applicator - Holyoke, Colorado. |
| 5361421 | common bean | Phaseolus vulgaris | Applying pesticide to experimental bean seedlings in the greenhouse. |
| 5361420 | common bean | Phaseolus vulgaris | Dew chamber for use in applying pesticides to experimental bean plants in the greenhouse. |
| 5361412 | dry bean rust | Uromyces appendiculatus | Aerial view of nursery experiments with pestcide applications in a study of the pathology of bean rust (Uromyces appendiculatus). |
| 5360305 | common bean | Phaseolus vulgaris | A drybeans bactericide trial on a CSU Bean Variety Trials program at Burlington,1991. |
| 5359557 | common bean | Phaseolus vulgaris | Close-up of the cultivator on a tractor-based dry bean cultivator and pesticide applicator. |
| 5359555 | common bean | Phaseolus vulgaris | Tractor-based dry bean cultivator and pesticide applicator. |
| 5359556 | common bean | Phaseolus vulgaris | Tractor-based dry bean cultivator and pesticide applicator. |
| 5359554 | common bean | Phaseolus vulgaris | Dry bean cultivator and pesticide applicator. |
| 5358984 | common bean | Phaseolus vulgaris | Chemigation unit for applying pestcides to dry beans. |
| 5358977 | common bean | Phaseolus vulgaris | Weeds sprouting as a result of no carryover of herbicides applied in a dry bean field. |
| 5358336 | common bean | Phaseolus vulgaris | Tractor with sprayer used for pesticide application to dry beans and field corn. |
| 5357646 | common bean | Phaseolus vulgaris | A Terragator in use, applying fungicide to a field of dry beans. |
| 5357645 | common bean | Phaseolus vulgaris | Fungicide application to a field of dry beans, using a Terragator. |
| 5357644 | common bean | Phaseolus vulgaris | Fungicide being applied to a field of dry beans. |
| 5359772 | herbicides (general) | Herbicide damage to an onion planst in the field. | |
| 5359771 | herbicides (general) | Herbicide damage to an onion plant in the field. | |
| 5359770 | herbicides (general) | Herbicide damage to an onion plant in the field. | |
| 5360560 | pesticides | Use of an airplane for pesticide application in an onion field. | |
| 5360559 | pesticides | Use of an airplane for pesticide application in an onion field. | |
| 5362278 | pesticides | An onion leaf showing deposits of pesticides after pesticide application in the field. | |
| 5362279 | pesticides | An onion leaf showing deposits of pesticides after pesticide application in the field. | |
| 5362277 | pesticides | An onion leaf showing deposits of pesticides after pesticide application in the field. | |
| 5362276 | pesticides | An onion leaf pre-applied with the pesticide. Pesticide application to onion plants in the field. | |
| 5362274 | pesticides | Pesticide application to onion plants in the field. | |
| 5362275 | pesticides | Pesticide application to onion plants in the field. | |
| 5362272 | pesticides | Pesticide application to onion plants in the field. | |
| 5362273 | pesticides | Pesticide application to onion plants in the field. | |
| 5362271 | pesticides | Pesticide application to onion plants in the field. | |
| 5362262 | herbicides (general) | Herbicide damage (chlorosis) on onion leaf, Abiotic disease, Pesticide damage | |
| 5362225 | garden onion | Allium cepa | Research plots marked for bactericide application on onions in a study conducted at Rocky Ford, Colorado, September 1997. |
| 5362039 | pesticides | Onion pesticide spray application | |
| 5362042 | garden onion | Allium cepa | Using a backpack sprayer to apply pesticide to a field of onions. |
| 5366091 | garden onion | Allium cepa | Close-up view of herbicide (Prowl) and crop oil damage to an onion. |
| 5366090 | garden onion | Allium cepa | Close-up view of herbicide (Prowl) and crop oil damage to onions. |
| 5366089 | garden onion | Allium cepa | Close-up view of herbicide (Prowl) and crop oil damage to an onion. |
| 5366088 | garden onion | Allium cepa | Close-up view of herbicide (Prowl) and crop oil damage to an onion. |
| 5366086 | garden onion | Allium cepa | Herbicide (Prowl) and crop oil damage to an onion field. |
| 5366087 | garden onion | Allium cepa | Herbicide (Prowl) and crop oil damage to an onion field. |
| 5366085 | garden onion | Allium cepa | |
| 5366084 | garden onion | Allium cepa | Herbicide (Prowl) and crop oil damage to an onion field. |
| 5366082 | garden onion | Allium cepa | Close-up view of herbicide damage on an onion plant. |
| 5366083 | garden onion | Allium cepa | Close-up view of herbicide damage on an onion plant. |
| 5366081 | garden onion | Allium cepa | Close-up view of herbicide damage on an onion plant. |
| 5366080 | garden onion | Allium cepa | Herbicide damage to onions. |
| 5365275 | pesticides | A post-emergence herbicide treatment of an onion field. | |
| 5365276 | pesticides | A post-emergence herbicide treatment of an onion field. | |
| 5365274 | pesticides | A post-emergence herbicide treatment of an onion field. | |
| 5365273 | pesticides | A post-emergence herbicide treatment of an onion field. | |
| 5361694 | pesticides | Fumigation study on onion transplants in a field at Lucerne. | |
| 5361692 | pesticides | Fumigation study on onion transplants in a field at Lucerne. | |
| 5361693 | pesticides | Fumigation study on onion transplants in a field at Lucerne. | |
| 5364558 | herbicides (general) | Herbicide damage to onion plants on the field. | |
| 5364557 | herbicides (general) | Herbicide damage to onion plants on the field. |
