The soybean aphid has been a major pest of soybean in North America since its initial invasion in 2000. Direct damage from soybean aphid infestation has been estimated to cause yield losses of up to $2.4 billion annually, and severe infestation reduces yield by more than 50%. Aphid infestations in Ohio were widespread in 2009. Soybean varieties have been developed with resistance to the soybean aphid and host-plant resistant soybeans will be commercially available for the first time in 2010. However, the benefit and sustainability of these new lines is threatened by the presence of two to three soybean aphid biotypes, which can survive and reproduce on aphid-resistant soybeans. Therefore,...
Unique Keywords:
#insects and pests, #soybean aphid (sa), #soybean aphid - biotypes, #soybean aphid - genetic resistance