Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 10 of 10 for “"collards"”.
-
Contributions toward the integrated pest management of diamondback moth, Plutella xylostella (L.), on collards in Virginia
… sound integrated pest management program for collards in the state. Ecological life table studies of P. xylostella immature stages on collards located on the Eastern Shore and on Kentland Farm, near Blacksburg at the New River Valley, VA revealed that most (98 to 99%) of P. xylostella died …
-
Changes in the quality of leafy vegetables and wash water in a system employing wash-water recycle
… residual. Four trial runs were made when collards were washed and a fifth was made when spinach was processed. Comparisons made between the magnitudes of water constituents at each site within the washer system, between different crops of collards, and between collards and spinach …
-
Ultrasonic energy as a cleaning agent and its influence on the respiratory activity and leaf anatomy of Brassica Oleraceae var. Acephala
… ultrasonic energy in removing spray residue from collards, to determine its effect on the content of ascorbic acid and carotene levels in the treated tissues, and to investigate the influence of ultrasonic energy on the respiratory activity and the histological changes of the tissues involved.
-
Food webs and phenology models: evaluating the efficacy of ecologically based insect pest management in different agroecosystems
… true impact on lepidopteran pest suppression in collards.
-
Effect of Cropping Systems on Production and Economic Returns of Ten Vegetable Crops
… oleracea Capitata group, L. cv. Sun-up), collards (Brassica oleracea Acephala group, L. cv. Vates), and muskmelon (Cucumis melo L. cv. Gold Star) were used with the intercrop system. Snap beans (Phaseolus vulgaris L. cv. Provider and Bush Blue Lake), sweet corn (Zea mays Saccharata group, …
-
The effects of wildflower plots and diverse landscapes on ecosystem services, bee communities, and on-farm tick abundance
… and implemented by cooperating farmers. Collards, strawberries, tomatoes, and squash were used as model systems. We measured pest density, sentinel egg predation, crop damage, seed pollination, biomass production, marketable crop yield, sampled the bee community, and recorded tick …
-
Murgantia histrionica (Hahn): new trapping tactics and insights on overwintering survival
… of cole crops such as kale, broccoli and collards. This nearly loyal crop preference makes an interesting challenge for trapping them and helping farmers predict pest severity. Harlequin bugs can be found in much of North America, and are a serious problem in the southeastern United …
-
Plant Residues and Newspaper Mulch Effects on Weed Emergence And Collard Performance
… bare soil and anchored with soil and/or staples. Collards were transplanted after mulches were established at 24 plants plot<sup>-1</sup> (August 5, 2011 and June 29, 2012). In general plots with newspaper sheet had lower soil temperature and higher soil moisture than black plastic. Adding …
-
Monitoring and management of thrips populations in vegetables, row crops, and greenhouse crops in Virginia
… were carried out in: tomatoes, snap beans, collards, soybeans, cotton and peanuts grown in several locations in southeastern Virginia in 2009 and 2010. Both spinetoram and spinosad reduced thrips numbers the most effectively compared with the untreated control. Peanut and cotton treated with …