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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| 70 Images of 32 Subjects | View Subject List | View Image Details | View Thumbnails |
| Image | Subject Name | Scientific Name | Description |
|---|---|---|---|
| 5365702 | velvetleaf | Abutilon theophrasti | A velvetleaf plant infesting a drybeans field bloom. |
| 5365701 | velvetleaf | Abutilon theophrasti | The flowers of a velvetleaf plant infesting a drybean field. |
| 5365700 | velvetleaf | Abutilon theophrasti | A velvetleaf infestation of a drybean field. |
| 5365698 | jimsonweed | Datura stramonium | A Jimson weed infestation of a drybean field. |
| 5365697 | jimsonweed | Datura stramonium | A Jimson weed infestation of a drybean field. |
| 5365695 | jimsonweed | Datura stramonium | A Jimson weed infestation of a drybean field. |
| 5365696 | jimsonweed | Datura stramonium | A Jimson weed infestation of a drybean field. |
| 5365976 | corn | Zea mays | A volunteer field corn on a drybeans field as a weed. |
| 5365975 | Russian-thistle | Salsola tragus | A drybean field with Russian thistle weeds infestation. |
| 5365974 | common sunflower | Helianthus annuus | A drybean field with wild sunflower weeds infestation. |
| 5365973 | green foxtail | Setaria viridis | A drybean field with a green foxtail and other grass weeds infestation. |
| 5365972 | green foxtail | Setaria viridis | A drybean field with a green foxtail and other grass weeds infestation. |
| 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. |
| 5362731 | leafminer fly | Liriomyza spp. | An onion leaf infected by the onion leafminer Liriomyza spp. on a field at Fruita in Colorado. |
| 5365921 | bumble bees | Bombus spp. | A bumble bee (Bombus spp.) on a sunflower (Helianthus spp.) head. |
| 5365880 | Colorado potato beetle | Leptinotarsa decemlineata | Larvae of Colorado potato beetle (Leptinotarsa decemlineata) on a potato plant. |
| 5357350 | spiders | A spider and it's web in a sorghum field. | |
| 5357327 | Colorado potato beetle | Leptinotarsa decemlineata | A potato plant infested with Colorado potato beetles Leptinotarsa decemlineata in the field. |
| 5357325 | Colorado potato beetle | Leptinotarsa decemlineata | A potato plant infested with Colorado potato beetles Leptinotarsa decemlineata in the field. |
| 5357326 | Colorado potato beetle | Leptinotarsa decemlineata | A potato plant infested with Colorado potato beetles Leptinotarsa decemlineata in the field. |
| 5357324 | Colorado potato beetle | Leptinotarsa decemlineata | A potato plant infested with Colorado potato beetles Leptinotarsa decemlineata in the field. |
| 5357322 | Colorado potato beetle | Leptinotarsa decemlineata | A potato plant infested with Colorado potato beetles Leptinotarsa decemlineata in the field. |
| 5357323 | Colorado potato beetle | Leptinotarsa decemlineata | A potato plant infested with Colorado potato beetles Leptinotarsa decemlineata in the field. |
| 5359949 | dodder | Cuscuta spp. | Dodder (Cuscuta spp.) infestation of a sugar beet (Beta vulgaris) field. |
| 5358326 | corn | Zea mays | Early-season weed infestation of a field corn field. |
| 5357215 | corn | Zea mays | A volunteer field corn on the field of an economic crop as a weed. |
| 5360600 | 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. |
| 5362354 | barnyardgrass | Echinochloa crus-galli | A drybean field with barnyard grass (Echinocloa crus-galli) infestation. |
| 5362353 | barnyardgrass | Echinochloa crus-galli | A drybean field with barnyard grass (Echinocloa crus-galli) infestation. |
| 5362352 | yellow nutsedge | Cyperus esculentus | A drybean field with yellow nutsedge (Cyperus esculentus) infestation. |
| 5362065 | crownbeard | Verbesina encelioides | Golden Crown Beard (Verbesina encelioides (Cav.) Benth. & Hook. f. ex Gray) in a drybean field as weeds. |
| 5362067 | crownbeard | Verbesina encelioides | Golden Crown Beard (Verbesina encelioides (Cav.) Benth. & Hook. f. ex Gray) in a drybean field as weeds. |
| 5362071 | corn | Zea mays | Volunteer field corn (Zea mays) in a drybean field as weeds. |
| 5362063 | crownbeard | Verbesina encelioides | Golden Crown Beard (Verbesina encelioides (Cav.) Benth. & Hook. f. ex Gray) in a drybean field as weeds. |
| 5362069 | corn | Zea mays | Volunteer field corn (Zea mays) in a drybean field as weeds. |
| 5362351 | tall morningglory | Ipomoea purpurea | A drybean field with tall morning-glory (Ipomea purpurea) infestation. |
| 5362350 | johnsongrass | Sorghum halepense | A drybean field with johnson grass (Sorghum halepense) infestation. |
| 5362349 | johnsongrass | Sorghum halepense | A drybean field with johnson grass (Sorghum halepense) infestation. |
| 5362083 | canarygrass | Phalaris canariensis | Infestation of a drybean field by some anuual grass weeds. |
| 5362079 | canarygrass | Phalaris canariensis | Infestation of a drybean field by some anuual grass weeds. |
| 5362081 | canarygrass | Phalaris canariensis | Infestation of a drybean field by some anuual grass weeds. |
| 5362073 | canarygrass | Phalaris canariensis | Infestation of a drybean field by some anuual grass weeds. |
| 5362076 | canarygrass | Phalaris canariensis | Infestation of a drybean field by some anuual grass weeds. |
| 5364349 | spider mites | Underside of a bean leaf, showing spider mites and the damage they have caused. | |
| 5363670 | dry bean rust | Uromyces appendiculatus | Plants of the dry bean variety "Fisher Pinto," showing symptoms of bean rust (Uromyces appendiculatus). |
| 5364015 | common bean | Phaseolus vulgaris | Flea beetles defoliating a dry bean plant. |
| 5364016 | common bean | Phaseolus vulgaris | Thrips infesting the underside of a dry bean leaf. |
| 5363951 | dry bean rust | Uromyces appendiculatus | Field of dry bean plants defoliated due to infection with bean rust (Uromyces appendiculatus). |
| 5362336 | green foxtail | Setaria viridis | An onion field infested with green foxtail (Setaria viridis). |
| 5362335 | barnyardgrass | Echinochloa crus-galli | An onion field infested with barnyard grass (Echinocloa crus-galli). |
| 5362334 | tumble pigweed | Amaranthus albus | An onion field infested with tumble/prostrate pigweed (Amaranthus albus). |
| 5362333 | redroot pigweed | Amaranthus retroflexus | An onion field infested with redroot pigweed (Amaranthus retroflexus). |
| 5362332 | lambsquarters | Chenopodium album | An onion field infested with common lambsquarters (Chenopodium album). |
| 5362331 | field bindweed | Convolvulus arvensis | An onion field infested with field bindweeds (Convolvulus arvensis). |
| 5362330 | Mexican fireweed | Kochia scoparia | An onion field infested with kochia weeds (Kochia scoparia). |
| 5362329 | Venice mallow | Hibiscus trionum | An onion field infested with Venice mallow (Hibiscus trionum). |
| 5362328 | common mallow | Malva neglecta | An onion field infested with common mallow (Malva neglecta). |
| 5362327 | common mallow | Malva neglecta | An onion field infested with common mallow (Malva neglecta). |
| 5362326 | garden onion | Allium cepa | An onion field infested with a weed species. |
| 5362325 | common purslane | Portulaca oleracea | An onion field infested with purslane/little hogweed (Portulaca oleracea). |
| 5362324 | common purslane | Portulaca oleracea | An onion field infested with purslane/little hogweed (Portulaca oleracea). |
| 5362323 | toothed spurge | Euphorbia dentata var. dentata | An onion field infested with tooothed spurge (Euphorbia dentata). |
| 5365668 | Iris Yellow Spot Virus | Tospovirus IYSV | A field of onions severely damaged by infection with Iris Yellow Spot Virus. |
| 5365665 | Iris Yellow Spot Virus | Tospovirus IYSV | Onion plants severely infected with Iris Yellow Spot Virus. |
| 5109038 | Xanthomonas leaf blight of onion | Xanthomonas axonopodis pv. allii |
