Browsing by Author "Arancibia, R. A."
Now showing 1 - 10 of 10
Results Per Page
Sort Options
- Effects of Thiamethoxam-Treated Seed on Mexican Bean Beetle (Coleoptera: Coccinellidae), Nontarget Arthropods, and Crop Performance in Southwestern Virginia Snap BeansNottingham, Louis B.; Kuhar, Thomas P.; Kring, T.; Herbert, D. Ames Jr.; Arancibia, R. A.; Schultz, Peter B. (Oxford University Press, 2017-12-01)Thiamethoxam is a neonicotinoid insecticide commonly applied directly to the seeds (seed-treatment) of commercial snap beans, Phaseolus vulgaris L. While previous studies have examined target and nontarget effects of thiamethoxam seed-treatments in snap beans and other crops, to our knowledge, none have been conducted in agroecosystems predominated by the pest Mexican bean beetle, Epilachna varivestis Mulsant (Coleoptera: Coccinellidae). This study examined the effects of thiamethoxam-treated snap beans on E. varivestis, other arthropods, and crop performance in southwestern Virginia. Greenhouse experiments were conducted to evaluate residual toxicity of treated snap beans to E. varivestis and a key predator, Podisus maculiventris (Say) (Hemiptera: Pentatomidae). Treated plants were highly toxic to E. varivestis at 13 d, moderately toxic from 16 to 20 d, and minimally toxic at 24 d. P. maculiventris was unaffected by exposure to treated plants or by feeding on E. varivestis that consumed treated plants. Small plot field experiments in 2014 and 2015 showed no significant effects of thiamethoxam seed-treatments on E. varivestis densities, other arthropods, crop injury, or yield. In 2016, planting was delayed by persistent rain, resulting in early E. varivestis colonization. In this year, thiamethoxam-treated plants had significantly lower densities and feeding injury from E. varivestis, followed by significantly higher yields. Natural enemies were unaffected by seed-treatments in all field experiments. These experiments demonstrated that thiamethoxam seed-treatments provide control of E. varivestis when beetles infest fields within 2 to 3 wk after planting; but otherwise provide negligible advantages. Negative effects from thiamethoxam seed-treatments on nontarget arthropods appear minimal for snap beans in this region.
- Low Tunnels in Vegetable Crops: Beyond Season ExtensionArancibia, R. A. (Virginia Cooperative Extension, 2018-05-30)Discusses the use of low tunnels as a means of protecting plants from insect pests, and freezes, extending the growing season, and increasing crop production.
- Mid-Atlantic Commercial Vegetable Production Recommendations, 2016-2017Arancibia, R. A.; Reiter, Mark S.; Rideout, Steven L.; Kuhar, Thomas P.; Strawn, Laura K.; Cahoon, Charlie; Parkhurst, James A.; Langston, David B.; Straw, Allen; Samtani, Jayesh B. (Virginia Cooperative Extension, 2017-03-06)Provides current information for the commercial vegetable grower to assist in managerial choices about vegetable varieties, pesticides, equipment, irrigation, fertilizer, and cultural practices.
- Mid-Atlantic Commercial Vegetable Production Recommendations, 2018Arancibia, R. A.; Cahoon, Charlie; Kuhar, Thomas P.; Langston, David B.; Parkhurst, James A.; Reiter, Mark S.; Rideout, Steven L.; Samtani, Jayesh B.; Straw, Allen; Strawn, Laura K. (Virginia Cooperative Extension, 2018-02-09)Provides current information for the commercial vegetable grower to assist in managerial choices about vegetable varieties, pesticides, equipment, irrigation, fertilizer, and cultural practices.
- Mid-Atlantic Commercial Vegetable Production Recommendations, 2019Arancibia, R. A.; Kuhar, Thomas P.; Langston, David B.; Reiter, Mark S.; Rideout, Steven L.; Samtani, Jayesh B.; Strawn, Laura K.; Reiter, Scott; Doughty, Hélène (Virginia Cooperative Extension, 2019-01-25)Provides current information for commercial vegetable growers to assist in choices about vegetable varieties, pesticides, equipment, irrigation, fertilizer, and cultural practices.
- Southeastern U.S. 2016 Vegetable Crop Handbook(Virginia Cooperative Extension, 2016-02-17)Provides current, research-based information on vegetable crops, including recommendations for best varieties to plant, planting dates, fertilizer recommendations, cover crop selection and conservation tillage option, pesticide selection, grafting, fertigation, plasticulture, postharvest handling, and alternative pest management.
- Southeastern U.S. Vegetable Crop Handbook, 2017Kuhar, Thomas P.; Arancibia, R. A.; Rideout, Steven L.; Reiter, Mark S. (Virginia Cooperative Extension, 2017-02-22)Provides current, research-based information on vegetable crops, including recommendations for best planting practices, planting dates, fertilizer recommendations, cover crop selection, and conservation tillage options, and more.
- Southeastern U.S. Vegetable Crop Handbook, 2018Arancibia, R. A.; Kuhar, Thomas P.; Reiter, Mark S.; Rideout, Steven L. (Virginia Cooperative Extension, 2018-02-19)Provides current, research-based information on vegetable crops, including recommendations for best planting practices, planting dates, fertilizer, cover crop selection, conservation tillage options, and more.
- Southeastern U.S. Vegetable Crop Handbook, 2019Reiter, Mark S.; Arancibia, R. A.; Straw, Allen; Kuhar, Thomas P.; Rideout, Steven L. (Meister Media Worldwide, 2019-01-21)This handbook comprises up-to-the-minute information developed from research and Extension projects conducted throughout the southeastern United States. The key idea behind this handbook is to provide you with a practical resource that conveniently fits on your dashboard. It contains the information that you need to manage your vegetable crops, including which varieties to plant, planting dates, fertilizer recommendations, cover crop selection and conservation tillage options, pesticide selection, grafting, fertigation, plasticulture, postharvest handling, alternative pest management tools and suggestions, as well as many other topics.
- Sweetpotato Production and Variety Performance in Southeast Virginia, 2015-2016Arancibia, R. A.; Romelczyk, Stephanie; Flanagan, Roy; Reiter, Scott; Parrish, Michael J.; Jenrette, James (Virginia Cooperative Extension, 2018-05-08)Discusses the materials, methods and results of growing several varieties of sweetpotato at five sites in Virginia in 2015 and 2016.