Impact of Planting Date on Melanaphis sacchari (Hemiptera: Aphididae) Population Dynamics and Grain Sorghum Yield
العنوان: | Impact of Planting Date on Melanaphis sacchari (Hemiptera: Aphididae) Population Dynamics and Grain Sorghum Yield |
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المؤلفون: | Neelendra K. Joshi, Nicholas J. Seiter, Anne D Miskelley, Glenn Studebaker, Jason P. Kelley, Gus M. Lorenz |
المصدر: | Journal of Economic Entomology. 112:2731-2736 |
بيانات النشر: | Oxford University Press (OUP), 2019. |
سنة النشر: | 2019 |
مصطلحات موضوعية: | 0106 biological sciences, Integrated pest management, Population Dynamics, Population, 010603 evolutionary biology, 01 natural sciences, Animals, education, Sorghum, education.field_of_study, Aphid, Arkansas, Ecology, biology, Melanaphis sacchari, Sowing, Aphididae, General Medicine, biology.organism_classification, Saccharum, Cultural control, 010602 entomology, Agronomy, Aphids, Insect Science |
الوصف: | The sugarcane aphid, Melanaphis sacchari (Zehntner) (Hemiptera: Aphididae), has become a major pest of grain sorghum, Sorghum bicolor (L.) Moench, in the United States in recent years. Feeding by large densities of sugarcane aphids causes severe damage, which can lead to a total loss of yield in extreme cases. Our objective was to determine the effect of grain sorghum planting date on sugarcane aphid population dynamics and their potential to reduce yields. We conducted field experiments from 2015 to 2017 in which an aphid-susceptible grain sorghum hybrid was planted at four different dates, which encompassed the typical range of planting dates used in Arkansas production systems. Plots were either protected from sugarcane aphid feeding using foliar insecticide sprays, or left untreated to allow natural populations of sugarcane aphids to colonize and reproduce freely. Planting date impacted both the magnitude and severity of sugarcane aphid infestations, with the highest population densities (and subsequent reductions in sorghum yield) generally occurring on plots that were planted in May or June. Sugarcane aphid feeding reduced yields in the untreated plots in two of the four planting date categories we tested. Earlier planting generally resulted in less sugarcane aphid damage and improved yields compared with later planting dates. While the effect of planting date on sugarcane aphid populations is likely to vary by region, sorghum producers should consider grain sorghum planting date as a potential cultural tactic to reduce the impact of sugarcane aphid. |
تدمد: | 1938-291X 0022-0493 |
URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0fcad962f79f92ae415bf78279f213c1 https://doi.org/10.1093/jee/toz230 |
حقوق: | OPEN |
رقم الأكسشن: | edsair.doi.dedup.....0fcad962f79f92ae415bf78279f213c1 |
قاعدة البيانات: | OpenAIRE |
تدمد: | 1938291X 00220493 |
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