The Soybean Aphid, An Invasive Insect Of North America

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The soybean aphid, Aphis glycines is an invasive insect in North America. Kingdom: Animalia, Phylum: Arthropoda, Class: Insecta, Order: Hemiptera, Family: Aphididae, Genus: Aphis, Species: A. glycines (“Soybean Aphid”).

(Diers, et al. 2009)

The soybean aphid is native to Asia and a common pest in China (“Soybean Aphid”). Asian countries that experience the soybean aphid as an occasional pest are Indonesia, Japan, Korea, Malaysia, the Philippines and Thailand (“Soybean Aphid”). The aphids were identified in Wisconsin in the summer of 2000 (Venette et al. 2004). Many believe that the soybean aphid arrived a few years prior to its identification because of the pest thrived in small numbers. Typically farmers and agronomist are not going to know a foreign species until they are looking for cause of crop injury. The invasion is believed to be accidental as the aphids were most likely introduced from, “China or Japan carried by an international airline passenger or associated with a horticultural cargo” (Venette et al. 2004). Only two years after being identified the aphids were found in 20 states including the Midwest and along the East Coast which contain approximately 89 percent of the land in the United States used to grow soybeans (Soybean Aphid). The soybean aphid was able to move quickly across the continental United States. These small insects utilized wind currents to be carried great distances and luckily for them the soybeans are one of

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