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
Professional Societies:
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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. |
| 78 Images of 15 Subjects | View Subject List | View Image Details | View Thumbnails |
| Image | Subject Name | Scientific Name | Description |
|---|---|---|---|
| 5366847 | pricklypear/cholla | Opuntia spp. | A Senita cactus (Pachycereus schottii) |
| 5366848 | pricklypear/cholla | Opuntia spp. | A Senita cactus (Pachycereus schottii) |
| 5367365 | pricklypear/cholla | Opuntia spp. | Cactus plants in the field. |
| 5367364 | pricklypear/cholla | Opuntia spp. | Cactus plants in the field. |
| 5367362 | agave | Agave spp. | Agave plants in bloom in the field. |
| 5367359 | pricklypear/cholla | Opuntia spp. | A cactus plant in the field. |
| 5367353 | pricklypear/cholla | Opuntia spp. | Several types of cactus species in the field. |
| 5366408 | pricklypear/cholla | Opuntia spp. | A cactus plant in the field. |
| 5366407 | pricklypear/cholla | Opuntia spp. | A cactus plant in the field. |
| 5367361 | pricklypear/cholla | Opuntia spp. | Different types of cactus species in the field. |
| 5367360 | pricklypear/cholla | Opuntia spp. | Cactus plants in the field. |
| 5367358 | pricklypear/cholla | Opuntia spp. | A flowering cactus plant in the field. |
| 5367357 | pricklypear/cholla | Opuntia spp. | Cactus plants in the field. |
| 5367355 | pricklypear/cholla | Opuntia spp. | Cactus plants in the field. |
| 5367356 | pricklypear/cholla | Opuntia spp. | Cactus plants in the field. |
| 5367354 | pricklypear/cholla | Opuntia spp. | Cactus plants in the field. |
| 5367352 | pricklypear/cholla | Opuntia spp. | Cactus plants in the field. |
| 5367351 | pricklypear/cholla | Opuntia spp. | Cactus plants in the field. |
| 5367350 | pricklypear/cholla | Opuntia spp. | Cactus plants in the field. |
| 5366433 | agave | Agave spp. | Lechuguilla (Agave lechuguilla) plants at the Phoenix Botanical Gardens in Arizona. |
| 5366434 | agave | Agave spp. | Lechuguilla (Agave lechuguilla) plants at the Phoenix Botanical Gardens in Arizona. |
| 5366425 | pricklypear/cholla | Opuntia spp. | Pencil Cholla Cactus (Opuntia ramosissima Engelm.) at the Phoenix Botanical Gardens in Arizona. |
| 5366426 | pricklypear/cholla | Opuntia spp. | Pencil Cholla Cactus (Opuntia ramosissima Engelm.) at the Phoenix Botanical Gardens in Arizona. |
| 5366424 | pricklypear/cholla | Opuntia spp. | Pencil Cholla Cactus (Opuntia ramosissima Engelm.) at the Phoenix Botanical Gardens in Arizona. |
| 5366423 | pricklypear/cholla | Opuntia spp. | Pencil Cholla Cactus (Opuntia ramosissima Engelm.) at the Phoenix Botanical Gardens in Arizona. |
| 5366420 | barrel cactus | Ferocactus spp. | Fishhook Barrel Cactus (Ferocactus wislizeni) at the Phoenix Botanical Gardens in Arizona. Please note that the Ferocactus genera may sometimes be referred to as Echinocactus. |
| 5366415 | hamatocactus | Hamatocactus spp. | Thelocactus cactus (Thelocactus leucacanthus) plants at the Phoenix Botanical Gardens in Arizonia. Please note that the genera Thelocactus is synonymous to Hamatocactus. |
| 5366414 | barrel cactus | Ferocactus spp. | A Golden Barrel Cactus (Echinocactus grusonii) at the Phoenix Botanical Gardens in Arizona. Please note that the Echinocactus genera may sometimes be referred to as Ferocactus. |
| 5366413 | barrel cactus | Ferocactus spp. | Golden Barrel Cacti (Echinocactus grusonii) at the Phoenix Botanical Gardens in Arizona. Please note that the Echinocactus genera may sometimes be referred to as Ferocactus. |
| 5366406 | melocactus | Melocactus spp. | Melocactus (Melocactus spp.) plants at the Phoenix Botanical Gardens in Arizonia. |
| 5366405 | pricklypear/cholla | Opuntia spp. | Some cactus plants at the Phoenix Botanical Gardens in Arizonia. |
| 5366404 | pricklypear/cholla | Opuntia spp. | Some cactus plants at the Phoenix Botanical Gardens in Arizonia. |
| 5366402 | hamatocactus | Hamatocactus spp. | Thelocactus cactus (Thelocactus tulensis) plants at the Phoenix Botanical Gardens in Arizonia. Please note that the genera Thelocactus is synonymous to Hamatocactus. |
| 5366400 | aloe | Aloe spp. | Aloe (Aloe castanea) plants at the Phoenix Botanical Gardens in Arizonia. |
| 5366399 | aloe | Aloe spp. | Aloe (Aloe dorotheae) at the Phoenix Botanical Gardens in Arizonia. |
| 5366395 | pricklypear/cholla | Opuntia spp. | Cactus plants in bloom at the Phoenix Botanical Gardens in Arizonia. |
| 5366394 | blanketflower | Gaillardia spp. | Blanket flower (Gaillardia pulchella) at the Phoenix Botanical Gardens in Arizonia. |
| 5366391 | kingcup cactus | Echinocereus triglochidiatus | Englemen's Hedgehog Cactus at the Phoenix Botanical Gardens in Arizonia. |
| 5366387 | paloverde | Parkinsonia spp. | Little leaf Palo Verde at the Phoenix Botanical Gardens in Arizonia. Please note that this genus is synonymous to Cercidium. This image is of Cercidium microphyllum. |
| 5366388 | paloverde | Parkinsonia spp. | Little leaf Palo Verde at the Phoenix Botanical Gardens in Arizonia. Please note that this genus is synonymous to Cercidium. This image is of Cercidium microphyllum. |
| 5366389 | paloverde | Parkinsonia spp. | Little leaf Palo Verde at the Phoenix Botanical Gardens in Arizonia. Please note that this genus is synonymous to Cercidium. This image is of Cercidium microphyllum. |
| 5366390 | paloverde | Parkinsonia spp. | Little leaf Palo Verde at the Phoenix Botanical Gardens in Arizonia. Please note that this genus is synonymous to Cercidium. This image is of Cercidium microphyllum. |
| 5366386 | pricklypear/cholla | Opuntia spp. | Chain fruit cholla (Cylindropuntia fulgida), also known as hanging chain cholla or jumping cholla, at the Phoenix Botanical Gardens in Arizonia. |
| 5366385 | saguaro | Carnegiea gigantea | Saguaros at the Phoenix Botanical Gardens in Arizonia. |
| 5366384 | organ pipe cactus | Stenocereus thurberi | Organ Pipe Cactus plants at the Phoenix Botanical Gardens in Arizonia. |
| 5366383 | pricklypear/cholla | Opuntia spp. | Cactus plants at the Phoenix Botanical Gardens in Arizonia. |
| 5366836 | pricklypear/cholla | Opuntia spp. | The long spike of a cactus plant at the Phoenix Botanical Gardens in Arizonia. |
| 5366837 | cactus | Stenocereus spp. | An octopus cactus at the Phoenix Botanical Gardens in Arizona. |
| 5366382 | pricklypear/cholla | Opuntia spp. | Boxing glove cactus (Opuntia fulgida var. mammillata) at the Phoenix Botanical Gardens in Arizona. |
| 5366381 | pricklypear/cholla | Opuntia spp. | Boxing glove cactus (Opuntia fulgida var. mammillata) at the Phoenix Botanical Gardens in Arizona. |
| 5366875 | agave | Agave spp. | An agave (Agave datylio var vexans) plant at the Phoenix Botanical Gardens in Arizona. |
| 5366873 | lady's slippers | Cypripedium spp. | Lady's slipper plants at the Phoenix Botanical Gardens in Arizona. |
| 5366872 | lady's slippers | Cypripedium spp. | Lady's slipper plants at the Phoenix Botanical Gardens in Arizona. |
| 5366869 | ocotillo | Fouquieria splendens | Ocotillos at the Phoenix Botanical Gardens in Arizona. |
| 5366867 | agave | Agave spp. | A Mescal agave (Agave parryi) plant at the Phoenix Botanical Gardens in Arizona. This is also sometimes called Palmer's agave (A. palmeri). |
| 5366866 | agave | Agave spp. | A Murphy's agave (Agave murpheyi) plant at the Phoenix Botanical Gardens in Arizona. |
| 5366865 | agave | Agave spp. | An agave plant at the Phoenix Botanical Gardens in Arizona. |
| 5366864 | agave | Agave spp. | An agave plant at the Phoenix Botanical Gardens in Arizona. |
| 5366863 | agave | Agave spp. | Agave plants at the Phoenix Botanical Gardens in Arizona. |
| 5366862 | pricklypear/cholla | Opuntia spp. | Cactus plants at the Phoenix Botanical Gardens in Arizona. |
| 5366861 | pricklypear/cholla | Opuntia spp. | Cactus plants at the Phoenix Botanical Gardens in Arizona. |
| 5366851 | barrel cactus | Ferocactus spp. | Golden Barrel Cacti at the Phoenix Botanical Gardens in Arizona. Please note that these may sometimes be referred to as Echinocactus grusonii. |
| 5366850 | barrel cactus | Ferocactus spp. | A Golden Barrel Cactus at the Phoenix Botanical Gardens in Arizona. Please note that these may sometimes be referred to as Echinocactus grusonii. |
| 5366849 | barrel cactus | Ferocactus spp. | A Golden Barrel Cactus at the Phoenix Botanical Gardens in Arizona. Please note that these may sometimes be referred to as Echinocactus grusonii. |
| 5366846 | pricklypear cactus | Opuntia macrorhiza | A Beavertail prickly pear cactus (Opuntia basilaris) at the Phoenix Botanical Gardens in Arizona. |
| 5366845 | pricklypear cactus | Opuntia macrorhiza | A Beavertail prickly pear cactus (Opuntia basilaris) at the Phoenix Botanical Gardens in Arizona. |
| 5366839 | pricklypear/cholla | Opuntia spp. | A teddy bear cholla cactus (Cylindropuntia bigelovii) at the Phoenix Botanical Gardens in Arizona. Please note that its synonym is Opuntia bigelovii. |
| 5366840 | pricklypear/cholla | Opuntia spp. | A teddy bear cholla cactus (Cylindropuntia bigelovii) at the Phoenix Botanical Gardens in Arizona. Please note that its synonym is Opuntia bigelovii. |
| 5366843 | pricklypear cactus | Opuntia macrorhiza | An Englemen's prickly pear cactus at the Phoenix Botanical Gardens in Arizona. |
| 5366844 | pricklypear cactus | Opuntia macrorhiza | An Englemen's prickly pear cactus at the Phoenix Botanical Gardens in Arizona. |
| 5366842 | barrel cactus | Ferocactus spp. | A compass barrel cactus at the Phoenix Botanical Gardens in Arizona. |
| 5366841 | barrel cactus | Ferocactus spp. | A compass barrel cactus at the Phoenix Botanical Gardens in Arizona. |
| 5366838 | cactus | Stenocereus spp. | An octopus cactus at the Phoenix Botanical Gardens in Arizona. |
| 5358500 | ocotillo | Fouquieria splendens | A Madagascan ocotillo at the Phoenix Botanical Garden. |
| 5358501 | ocotillo | Fouquieria splendens | A Madagascan ocotillo at the Phoenix Botanical Garden. |
| 5358499 | ocotillo | Fouquieria splendens | A Madagascan ocotillo at the Phoenix Botanical Garden. |
| 5358493 | agave | Agave spp. | A mescal agave (Agave parryi var. truncata) at the Phoenix Botanical Garden. |
| 5358494 | agave | Agave spp. | A mescal agave (Agave parryi var. truncata) at the Phoenix Botanical Garden. |

