Narrow Results by:

Subject Specific Filters:

  1. Order:                   (show all)

    Violales (7)
    Fabales (6)
    Solanales (3)
    Caryophyllales (1)
    Gentianales (1)

Image Specific Filters:

  1. Descriptor:           (show all)

    Plant(s) (55)
    Fruit(s) (19)
    Field (17)
    Flower(s) (17)
    Infestation (10)

  1. Commodity:         (show all)

    Weeds (33)
    Watermelon (27)
    Squash, Pumpkins and Gourds (26)
    Grape (20)
    Cantaloupe (9)

Image Setting:

Field (138)
Laboratory (7)

  1. View:                     

    Close-up (11)
    Identifying Feature (2)

Orientation:

Landscape (140)
Portrait (5)

Howard F. Schwartz's Images

Title: Professor of Plant Pathology & Assoc. Dept. Head
Organization: Colorado State University
Unit: Plant Pathology
Country: United States
Web: http://www.alliumnet.com/index.htm
Professional Societies:

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.
Remove Filters: Vines(X) United States(X)
145 Images of 22 Subjects View Subject List View Image Details View Thumbnails

first prev Page: next last Display:

Image Subject Name Scientific Name Description
5474003 watermelon Citrullus lanatus watermelon plant wind whipping pattern on black plastic
5474002 watermelon Citrullus lanatus watermelon plant wind whipping pattern on black plastic
5473999 watermelon Citrullus lanatus plant and fruit development of watermelon grown on black plastic with drip irrigation
5474001 watermelon Citrullus lanatus watermelon plant wind whipping pattern on black plastic
5473996 watermelon Citrullus lanatus plant and flower development of watermelon grown on black plastic with drip irrigation
5473997 watermelon Citrullus lanatus plant and flower development of watermelon grown on black plastic with drip irrigation
5473998 watermelon Citrullus lanatus plant development of watermelon grown on black plastic with drip irrigation
5473995 watermelon Citrullus lanatus plant and flower development of watermelon grown on black plastic with drip irrigation
5473994 watermelon Citrullus lanatus plant development of watermelon grown on black plastic with drip irrigation
5473993 watermelon Citrullus lanatus plant development of watermelon grown on black plastic with drip irrigation
5473991 watermelon Citrullus lanatus plant, flower and fruit development of watermelon grown on black plastic with drip irrigation
5473992 watermelon Citrullus lanatus plant development of watermelon grown on black plastic with drip irrigation
5473990 watermelon Citrullus lanatus plant, flower and fruit development of watermelon grown on black plastic with drip irrigation
5473989 watermelon Citrullus lanatus plant, flower and fruit development of watermelon grown on black plastic with drip irrigation
5473988 watermelon Citrullus lanatus plant and flower development of watermelon grown on black plastic with drip irrigation
5473987 watermelon Citrullus lanatus plant, flower and fruit development of watermelon grown on black plastic with drip irrigation
5359234 wine grape Vitis vinifera Grapes on a vine - close-up view of the results of pruning and trellising.
5364374 cowpea Vigna unguiculata Black-eyed or Cowpea seeds. Reference dot = 3 mm diameter.
5389463 field bindweed Convolvulus arvensis A killdeer nest with eggs and a chick under a field bindweed.
5389462 field bindweed Convolvulus arvensis A killdeer nest with eggs and a chick under a field bindweed.
5389460 field bindweed Convolvulus arvensis A killdeer nest with eggs under a field bindweed.
5389461 field bindweed Convolvulus arvensis A killdeer nest with eggs under a field bindweed.
5389459 field bindweed Convolvulus arvensis A killdeer nest with eggs under a field bindweed.
5358188 field bindweed Convolvulus arvensis Field bindweed, Convolvulus arvensis, a common weed in agricultural and natural ecosystems.
5362405 passionflower Passiflora edulis The fruit of a passion fruit tree in an orchard.
5362404 passionflower Passiflora edulis Immature fruits of a passion fruit tree in an orchard.
5362403 passionflower Passiflora edulis The flowers of a passion fruit tree in an orchard.
5362402 passionflower Passiflora edulis A flower of a passion fruit tree in an orchard.
5362401 passionflower Passiflora edulis A passion fruit orchard.
5366435 tabardillo Calliandra californica The flowers of a tabardillo at the Phoenix Botanical Gardens in Arizona.
5366422 desert ironwood Olneya tesota A desert ironwood at the Phoenix Botanical Gardens in Arizona.
5366421 desert ironwood Olneya tesota A desert ironwood at the Phoenix Botanical Gardens in Arizona.
5366871 tabardillo Calliandra californica Tabardillo plants at the Phoenix Botanical Gardens in Arizona.
5366870 tabardillo Calliandra californica   Tabardillo plants at the Phoenix Botanical Gardens in Arizona.
5365870 tall morningglory Ipomoea purpurea A tall morning glory weed infestation of onion field.
5365869 tall morningglory Ipomoea purpurea A tall morning glory weed infestation of onion field.
5362766 wine grape Vitis vinifera Fruit-borne wine grape vines in a vineyard.
5361122 cowpea Vigna unguiculata A center pivot irrigation system used on a cowpea (black-eyed pea/southern pea) field.
5359298 zucchini Cucurbita pepo var. pepo An aerial application of pesticides to a summer squash field.
5359964 watermelon Citrullus lanatus A fruit-borne watermelon plant growing in the field.
5359963 watermelon Citrullus lanatus A drip irrigation system in use on a melon field.
5365635 zucchini Cucurbita pepo var. pepo Zucchini squash fruits used for white mold (Sclerotinia sclerotiorum) research in the field.
5365634 zucchini Cucurbita pepo var. pepo A zucchini squash fruit used for white mold (Sclerotinia sclerotiorum) research in the field.
5365633 zucchini Cucurbita pepo var. pepo Zucchini squash fruits used for white mold (Sclerotinia sclerotiorum) research in the field.
5365883 squashes (general) Cucurbita pepo A pumpkin fruit still attached to the plant in the field.
5365884 squashes (general) Cucurbita pepo A pumpkin fruit still attached to the plant in the field.
5365840 squashes (general) Cucurbita pepo A fruit-borne summer squash plant growing on a field in Colorado.
5365839 muskmelon Cucumis melo ssp. melo A honeydew melon growing on a field in Colorado.
5361673 zucchini Cucurbita pepo var. pepo A flower-borne zucchini squash plant growing on a field in Colorado.
5361671 zucchini Cucurbita pepo var. pepo A zucchini squash field in Colorado.
5361672 zucchini Cucurbita pepo var. pepo A zucchini squash field in Colorado.
5364446 squashes (general) Cucurbita pepo A pumpkin field in Colorado.
5364413 squashes (general) Cucurbita pepo Pumpkin seeds during a seed quality inspection exercise.
5363720 squashes (general) Cucurbita pepo A fruit-borne summer squash plant growing in the field.
5363719 squashes (general) Cucurbita pepo A fruit-borne summer squash plant growing in the field.
5363718 zucchini Cucurbita pepo var. pepo A zucchini squash plant growing in the field.
5363693 melon Cucumis melo A fruit-borne cantaloupe vine in the field.
5363692 melon Cucumis melo A fruit-borne cantaloupe vine in the field.
5363691 melon Cucumis melo A fruit-borne cantaloupe vine in the field.
5363690 melon Cucumis melo A cantaloupe vine in bloom in the field.
5363689 watermelon Citrullus lanatus Fruit-borne watermelon vines in the field.
5363688 watermelon Citrullus lanatus A fruit-borne watermelon vine in the field.
5363687 watermelon Citrullus lanatus A fruit and flower borne watermelon plant in the field.
5363686 watermelon Citrullus lanatus A watermelon plant with an attached fruit in the field.
5362741 muskmelon Cucumis melo ssp. melo A melon processing facility.
5362685 cowpea Vigna unguiculata A cowpea (blackeyed pea) field at Rocky Ford in Colorado.
5362684 cowpea Vigna unguiculata A cowpea (blackeyed pea) field at Rocky Ford in Colorado.
5362670 squashes (general) Cucurbita pepo A summer squash (pumpkin) plant in bloom.
5362669 squashes (general) Cucurbita pepo Summer squash (pumpkin) plants growing in the field.
5362667 watermelon Citrullus lanatus Watermelon plants growing in the field.
5362951 squashes (general) Cucurbita pepo A summer squash (pumpkin) plant with some flowers and a fruit growing in the field.
5362950 squashes (general) Cucurbita pepo A flowered summer squash (pumpkin) plant growing in the field.
5362949 squashes (general) Cucurbita pepo A summer squash (pumpkin) plant growing in the field.
5361123 cowpea Vigna unguiculata A scenic view of a cowpea (black-eyed pea/southern pea) field.
5361121 cowpea Vigna unguiculata Cowpea (black-eyed pea/southern pea) plants growing in the field.
5361069 guar Cyamopsis tetragonoloba A field of podded guar plants at Rocky Ford in Colorado.
5361068 guar Cyamopsis tetragonoloba A field of podded guar plants at Rocky Ford in Colorado.
5361067 guar Cyamopsis tetragonoloba A field of podded guar plants at Rocky Ford in Colorado.
5359304 watermelon Citrullus lanatus A watermelon fruit on  a watermelon field.
5359303 melon Cucumis melo Cantaloupe plants in bloom in the field.
5359299 squashes (general) Cucurbita pepo An aerial application of pesticides to a summer squash field.
5359297 squashes (general) Cucurbita pepo A scenic view of a summer squash field.
5360131 bougainvillea Bougainvillea spp. Bougainvillea growing on and over a monastery in Cartagena, Colombia.
5357637 watermelon Citrullus lanatus A watermelon fruit in the field.
5357636 watermelon Citrullus lanatus Watermelon plants and a fruit in the field.
5357635 watermelon Citrullus lanatus Watermelon plants in the field.
5365306 rose Rosa spp. The 'Carefree Delight' type of rose in a garden.
5359020 periwinkle Vinca spp. The 'Pacific Apricot' type of the ornamental flower Vinca spp..
5359019 periwinkle Vinca spp. The 'Peppermint Cooler Improved' type of the ornamental flower Vinca spp..
5359018 periwinkle Vinca spp. The 'Rose Cooler Improved' type of the ornamental flower Vinca spp..
5363590 squashes (general) Cucurbita pepo Pumpkin plant with fully opened blossom.
5362777 melon Cucumis melo A cantaloupe plant in flower.
5362778 melon Cucumis melo A cantaloupe harvester in operation in the field.
5362776 cucurbits A summer squash plant in flower.
5362775 cucurbits A zucchini plant in flower.
5358423 vetch Vicia spp. A cover crop of vetch (Vicia sp.).
5359949 dodder Cuscuta spp. Dodder (Cuscuta spp.) infestation of a sugar beet (Beta vulgaris) field.
5360601 dodder Cuscuta spp. Dodder plants (Cuscuta sp.) growing over a carrot crop.
5360599 dodder Cuscuta spp. Dodder plants (Cuscuta sp.) growing over a carrot crop.
5360600 dodder Cuscuta spp. Dodder plants (Cuscuta sp.) growing over a carrot crop.
5360598 dodder Cuscuta spp. Dodder plants (Cuscuta sp.) growing over a carrot crop.
5360596 dodder Cuscuta spp. Dodder (Cuscuta sp.) infestation in a carrot field
5360597 dodder Cuscuta spp. Dodder (Cuscuta sp.) infestation in a carrot field
5360595 dodder Cuscuta spp. Dodder (Cuscuta sp.) infestation in a carrot field
5360594 dodder Cuscuta spp. Dodder (Cuscuta sp.) infestation in a carrot field.
5362358 hairy vetch Vicia villosa Flowers of purple vetch (Vicia villosa).
5362338 puncturevine Tribulus terrestris Puncturevine (Tribulus terrestris).
5362339 puncturevine Tribulus terrestris Puncturevine (Tribulus terrestris).
5362337 puncturevine Tribulus terrestris Puncturevine (Tribulus terrestris).
5361782 puncturevine Tribulus terrestris Puncturevine (Tribulus terrestris) -- close-up view of stem, leaves, and a flower.
5361781 puncturevine Tribulus terrestris Puncturevine (Tribulus terrestris) - plant with flowers.
5361780 puncturevine Tribulus terrestris Puncturevine (Tribulus terrestris).
5361779 puncturevine Tribulus terrestris Puncturevine (Tribulus terrestris).
5364442 hairy vetch Vicia villosa Seeds of hairy vetch (Vicia villosa).
5364435 puncturevine Tribulus terrestris Seeds of puncturevine (Tribulus terrestris).
5364426 field bindweed Convolvulus arvensis Seeds of field bindweed (Convolvulus arvensis).
5364425 dodder Cuscuta spp. Seeds of dodder (Cuscuta sp.).
5363589 squashes (general) Cucurbita pepo Pumpkin plant(s).
5363588 tall morningglory Ipomoea purpurea Close-up view of the flowers of tall morningglory (Ipomoea purpurea).
5363587 tall morningglory Ipomoea purpurea Tall morningglory (Ipomoea purpurea).
5363586 tall morningglory Ipomoea purpurea Tall morningglory (Ipomoea purpurea).
5362702 dodder Cuscuta spp. Dodder plant (Cuscuta sp.) on weeds - field bindweed (Convolvulus arvensis) in the background.
5358325 field bindweed Convolvulus arvensis Field bindweed (Convolvulus arvensis) in flower.
5367090 wine grape Vitis vinifera Ripening purple grapes on the vine.
5365643 wine grape Vitis vinifera Ripening purple grapes on the vine.
5365642 wine grape Vitis vinifera Ripening purple grapes on the vine.
5365641 wine grape Vitis vinifera Grape vine with ripening purple fruit.
5364421 wild buckwheat Fallopia convolvulus Seeds of the weed, wild buckwheat (Polygonum convolvulus).
5362765 wine grape Vitis vinifera Grape plants in fruit behind mesh.
5360350 wine grape Vitis vinifera Close view of trellised and pruned grape vines in winter.
5360349 wine grape Vitis vinifera Trellised grapevines in winter, Colorado.
5359236 wine grape Vitis vinifera Table grapes on the vine.
5359235 wine grape Vitis vinifera Foliage of table grapes.
5359233 wine grape Vitis vinifera Close-up view of grapes hanging on the vine.
5359232 wine grape Vitis vinifera Grapes on a trellised vine.
5359231 wine grape Vitis vinifera Close-up view of grape leaves.
5359230 wine grape Vitis vinifera Close-up view of grape leaves.
5359229 wine grape Vitis vinifera Close-up view of a trellised grape vine in Colorado.
5359228 wine grape Vitis vinifera Close view of a grape vine on a trellis.
5359227 wine grape Vitis vinifera Grape vineyard in Colorado.
5359226 wine grape Vitis vinifera Wind machine in a vineyard, Colorado.
5359662 wine grape Vitis vinifera Grapevines setting fruit.
5362351 tall morningglory Ipomoea purpurea A drybean field with tall morning-glory (Ipomea purpurea) infestation.
5362606 field bindweed Convolvulus arvensis Field bindweed (Convolvulus arvensis) growing as a weed among dry bean plants.
5362331 field bindweed Convolvulus arvensis An onion field infested with field bindweeds (Convolvulus arvensis).

Page: