“…Although the SA has a short history in North America, the insect has caused significant damage to the crop in the northern United States and southern Canada. Soybean aphid can directly reduce soybean yield by stunting growth, causing leaf distortion, and reducing pod set (Li et al, 2004, Sun et al, 1990 and indirectly by transmitting certain plant viruses such as Alfalfa mosaic virus, soybean dwarf virus, Tobacco ringspot virus, and Soybean mosaic virus (Iwaki et al, 1980;Hartman et al, 2001;Sama et al, 1974). Soybean aphid can directly reduce soybean yield by stunting growth, causing leaf distortion, and reducing pod set (Li et al, 2004, Sun et al, 1990 and indirectly by transmitting certain plant viruses such as Alfalfa mosaic virus, soybean dwarf virus, Tobacco ringspot virus, and Soybean mosaic virus (Iwaki et al, 1980;Hartman et al, 2001;Sama et al, 1974).…”