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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.
1 paź 2011 · Biology and Life Cycle. The life cycle of the soybean aphid in the United States is similar to its native range (Wu et al. 2004). Like many aphid species, it has a complex life cycle that involves different physical forms (morphs) and two types of host plants.
Life cycle. Aphids overwinter as eggs on buckthorn in wooded areas. In spring, eggs hatch and several generations of aphids are produced without mating. Winged aphids are eventually produced on buckthorn, that then fly to soybean fields. Numerous generations of both winged and wingless aphids are produced on soybean without mating during the ...
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.
5 lut 2020 · A good example concerns the bird cherry-oat aphid, Rhopalosiphum padi (L.) . In this species, mtDNA haplotypes exist in a north–south cline in France correlated with life-cycle mode, i.e. obligate asexual (anholocyclic) or facultative (holocyclic) depending on the severity of the winter.
Diagram of the soybean aphid life cycle. Credit: Wendy Jiang. What are the symptoms of soybean aphid damage? Aphids feed on the sap of plants, leaving behind a sticky, sugary residue called “honeydew”. The honeydew of soybean aphids fosters sooty gray mold which gives the soybean leaves a charcoal-colored tint.
17 lut 2016 · This book combines fundamental information about aphids with chapters addressing state-of-the-art research in topics such as aphid-related phylogeny, genome biology, epigenetics and chemical...
