Keith Weller's Images
Organization: USDA Agricultural Research ServiceUnit:
Country: United States
| 59 Images of 39 Subjects | View Subject List | View Image Details | View Thumbnails |
| Image | Subject Name | Scientific Name | Description |
|---|---|---|---|
| 1323054 | American bison | Bison bison | This bison is part of a 13-head herd involved in a brucellosis vaccine study at the National Animal Disease Center in Ames, Iowa. |
| 1321031 | pig (domestic) | Sus scrofa (domestic type) | Geneticist Gary Rohrer examines Meishan pigs at the ARS Roman L. Hruska U.S. Meat Animal Research Center in Clay Center Nebraska. |
| 1321032 | pig (domestic) | Sus scrofa (domestic type) | Meishan pig. |
| 1322099 | rice | Oryza sativa | U.S. long grain rice. |
| 1323049 | European corn borer | Ostrinia nubilalis | Healthy European corn borer. |
| 1320068 | cattle | Bos spp. | |
| 1321064 | cattle | Bos spp. | Cows grazed on pastures have five times more of a fatty acid called conjugated linoleic acid (CLA) in their milk. The incidence of cancer in laboratory rats declines after they've consumed CLA. |
| 1321063 | cattle | Bos spp. | Because much of the cost of a cow is the feed and labor needed to maintain her, fewer but higher yielding cows mean lower priced milk. Dairy herd improvement ultimately benefits consumers. That's why it's just as important to keep complete and accurate records as it is to keep the cows contented. The National Cooperative Dairy Herd Improvement Program has been tracking Bossy's milk yields since 1905. Over the years, this program has made enormous contributions to dairy cattle breeding. ARS scientists receive the lactation records of all herds enrolled in the program and use the figures to rank the bulls that sire the nation's dairy cows and to rank the cows themselves. The results of years and years of scientific dairying? Milk production has been trending upward for more than 25 years in the United States-from about 117,000 million pounds in 1970 to more than 150,000 million pounds in 1994-even though the number of milk cows has been reduced |
| 1321074 | apple | Malus domestica | Apples in the ARS germplasm collection at Geneva, New York, vary widely in size, shape, and color |
| 1321079 | Norway spruce | Picea abies | Acrocona cultivar. |
| 1320049 | chicken (domestic) | Gallus gallus (domestic type) | |
| 1320045 | crapemyrtle | Lagerstroemia indica | The beautiful blooms of crape myrtle are now common in many U.S. gardens because of improved cold tolerance and disease resistance provided by ARS |
| 1321073 | grape | Vitis spp. | At the Plant Genetic Resources Conservation Unit in Geneva, New York, horticulturist Philip Forsline examines hybrid grapes developed in a USDA breeding program. |
| 1316066 | Dyer's woad | Isatis tinctoria | |
| 1317078 | yellow starthistle | Centaurea solstitialis | |
| 1319071 | waxweed | Cuphea spp. | Cuphea in bloom. |
| 1324005 | pig (domestic) | Sus scrofa (domestic type) | Piglet. |
| 1324002 | pig (domestic) | Sus scrofa (domestic type) | This sow's five pigs developed from cryopreserved and surgically transferred embryos. |
| 1318080 | pig (domestic) | Sus scrofa (domestic type) | Animal physiologist Lawrence Johnson displays a pig born as a result of studies using sorted sperm and in vitro fertilization. |
| 1318003 | kenaf | Hibiscus cannabinus | Fifty-five percent of dried kenaf stalks will be used to make paper. Waste products from the process can be made into fertilizer and feed binder. |
| 1319038 | soybean | Glycine max | Plywood panels glued with a soy flour-based foamed adhesive, which is more environmentally friendly and less costly than the plywood industry's current glue. |
| 1319045 | soybean | Glycine max | At USDA's Henry A. Wallace Beltsville (Maryland) Agricultural Research Center, the ARS National Visitor Center tour bus fueled with soy-based biodiesel passes a soybean field ready for harvesting. While USDA leads the way in using biofuels for vehicles and heating buildings, ARS scientists work to improve the production efficiency of soy diesel, ethanol, and other biofuels. |
| 1319082 | white-tailed deer | Odocoileus virginianus | Microbiologist Diana Whipple (left) and animal caretaker Katy Lies offer treats to a white-tailed deer being used to study tuberculosis in its wild counterparts. |
| 1319084 | elk | Cervus canadensis | Bison and elk are the remaining reservoirs of brucellosis in the United States. RB51, the new vaccine that protects bison from the disease, will be evaluated for protection of elk (shown above). |
| 1320047 | wheat | Triticum spp. | Breakfast, lunch, dinner, and snacks almost always include foods made from hearty wheat |
| 1318038 | white muscadine disease | Beauveria bassiana | A healthy armyworm (right) next to two that were killed and overgrown by B. bassiana strain Mycotech BB-1200. |
| 1318085 | fox grape | Vitis labrusca | This Concord grape plant was successfully regenerated from a bud that had been cryopreserved in liquid nitrogen for several months |
| 1317075 | safflower | Carthamus tinctorius | Biologist Craig Cavin examines safflower leaves inoculated with Puccinia carthami (left), an indigenous safflower pathogen, and Puccinia jaceae (right), a candidate for biological control of yellow starthistle. |
| 1317077 | safflower rust | Puccinia calcitrapae var. centaureae | Early symptoms of safflower rust, a disease native to the United States, appear on th estem of a safflower seedling. |
| 1316035 | alfalfa | Medicago sativa | Flowering alfalfa. |
| 1316036 | barrel medick | Medicago truncatula | Plant physiologist Carroll Vance evaluates roots of alfalfa, Medicago truncatula, as part of his efforts to help the crop fix more nitrogen and take in more phosphorus. |
| 1322011 | cattle | Bos spp. | Hereford cattle on ARS' Fort Keogh Livestock and Range Research Labratory near Miles City, Montana. |
| 1322033 | alpine pennycress | Thlaspi montanum | Alpine pennycress doesn't just thrive on soils contaminated with zinc and cadmium it cleans them up by removing the excess metals. |
| 1322083 | Diaprepes root weevil | Diaprepes abbreviatus | Adult citrus root weevil, Diaprepes. |
| 1322084 | sweet iris | Iris pallida | Purple iris, Iris pallida. |
| 1322085 | bloody geranium | Geranium sanguineum | Geranium sanguineum, in the herb garden at the U.S. National Arboretum. |
| 1322086 | oxeye daisy | Leucanthemum vulgare | Daisylike flower, Leucanthemum vulgare |
| 1320066 | potato | Solanum tuberosum | Potato flowers |
| 1320067 | cattle | Bos spp. | Watering cattle and providing shelter are two important ways to help keep them cooler and less stressed during heat waves. |
| 1320085 | cattle | Bos spp. | A simple blood test that checks the blood urea nitrogen (BUN) levels in cattle can help producers fine-tune their herd's feeding regimen. |
| 1320089 | cranberry | Vaccinium macrocarpon | Cranberry harvest in New Jersey |
| 1320094 | cacao | Theobroma cacao | Cocoa beans in a cacao pod |
| 1323089 | cattle | Bos spp. | To estimate the number of brown stomach worms in a pasture, researchers place a worm-free calf on grass for a measured length of time, then check for parasite eggs in its feces. |
| 1324019 | pesticides | Made from naturally occurring compounds, KeyPlex products stimulate plants to increase production of their own defensive compounds. Already used on several crops, they don't require registration by the U.S. Environmental Protection Agency. | |
| 1324021 | Barley Yellow Dwarf Virus | Luteovirus BYDV | The bright yellow of wheat leaves infected with barley yellow dwarf virus contrasts sharply with the deep green of normal, healthy wheat. |
| 1324038 | wild turkey | Meleagris gallopavo | Large White turkey male. |
| 1324044 | rice | Oryza sativa | Comparison of rice varieties: Top row L-R: Calrose, Kosanbare Middle row L-R: Nanking Sel, A301, Keyeena Bottom row L-R: Nortai, Koshikahari |
| 1323050 | white muscadine disease | Beauveria bassiana | European corn borer infected with biological control fungus, Beauveria bassiana, 7 to 10 days. |
| 1323051 | white muscadine disease | Beauveria bassiana | European corn borer with infection cycle complete. |
| 1323019 | cattle | Bos spp. | Cattle |
| 1323031 | corn | Zea mays | The greener leaf of the tripical corn line on the left shows that it is more resistant to corn leaf blight than the severely damaged domestic leaf on the right. |
| 1323048 | white muscadine disease | Beauveria bassiana | Infected European corn borer, 10 to 15 days. |
| 1319012 | white muscadine disease | Beauveria bassiana | The green diamondback moth larva on the left is alive and healthy, the reddish one on the right was recently killed by Beauveria bassiana spores, and the one in the middle is covered with spores that have erupted from within. |
| 1321067 | soybean | Glycine max | As part of the ridge-tillage system practiced at the John Van Meter farm, OSU assistant farm manager Wayne Lewis cultivates for weed control in soybeans. |
| 1321070 | pear | Pyrus spp. | Though the pears pictured do not have a texture suitable for good eating, scientists at the ARS Appalachian Fruit Research Station in Kearneysville, West Virginia, will combine their fire blight-resistant qualities with other lines possessing traits sought in commercial pear varieties. |
| 1321071 | pear | Pyrus spp. | Front row, center: Shining among nine other advanced pear selections now getting their mettle tested at several U.S. locations, Potomac was released in May 1993. |
| 1323001 | dusky sap beetle | Carpophilus lugubris | |
| 1318086 | cattle | Bos spp. | This Piedmontese-Hereford crossbred calf displays classic double muscling because it inherited a defective myostatin gene from both of its parents. |
| 1320057 | strawberry | Fragaria x ananassa | Sweet, juicy strawberries not only taste good, they're also full of nutrition. Low in calories and carbohydrates, the raw fruit is a good source of fiber potassium, iron, and vitamin C. |
