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Soybean aphid populations have the potential to increase rapidly and reduce yields (Hodgson et al., 2012). This chapter reviews the identification, biology, and management of soybean aphid. Treatment thresholds, biological control, host plant resistance, and other factors affecting soybean aphid populations will also be discussed.
the discovery of soybean aphid on soybean, growers have drastically changed management practices to protect yield. This article will summarize current practices used to monitor and manage soybean aphid. There are several general soybean production factors that must be considered for managing soybean aphid, and the
1 mar 2012 · Soybean aphid research indicated that aerial and ground applications of foliar-applied insecticides provided comparable efficacy of soybean aphid control (NCSRP).
Check 20 to 30 plants per field. Aphids are most likely to concentrate at the very top of the plant early in the season, and will move onto stems and within the canopy as populations grow and/or the plant reaches mid to late reproductive stages.
5 lip 2021 · Routine scouting is necessary to estimate aphid populations and to determine if insecticide applications are necessary. Controlling aphids is most critical during soybean reproductive growth stages (R1 through R5). Aphid Biology and Life Cycle. The soybean aphid is native to China and southeast Asia.
Fields should be scouted on a regular schedule (every seven to 10 days). Use the economic threshold (250 aphids per plant, with greater than 80 percent of plants infested) to determine when to apply insecticides. Treat within five to seven days of exceeding the economic threshold to protect yield.
Soybean aphids are small insects that use piercing-sucking mouthparts to remove plant sap. Infested fields should be scouted frequently. Foliar insecticides can be used to manage soybean aphids when populations surpass economic thresholds.
