Integrated pest management systems for sugarcane aphid in grain sorghum
Haar, Phillip Joseph
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Studies were conducted utilizing an integrated pest management approach to control the invasive pest the sugarcane aphid, Melanaphis sacchari, in grain sorghum. The study took place from 2016-2017 at Griffin, Tifton and Plains, Georgia, USA from May to October. During this research a pathogenic fungus, Lecanicillium lecani, was discovered attacking sugarcane aphid. Integrated tactics included four variables: planting date, insecticidal seed treatment, foliar insecticides, and plant tolerance/resistance. Early planting was effective in reducing damage and increasing yields when compared to the late planting. Additionally, the resistant variety and use of a foliar insecticide application was uniform in terms of yield despite treatment type and yielded more than the susceptible variety overall. We concluded that an earlier planting date coupled with a resistant variety and judicious use of a foliar insecticide produced the best yielding outcome.