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Soybean Cyst Nematode

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Females of the soybean cyst nematode (SCN) are visible on a soybean root (see photo below). The cyst is a dead female filled with eggs. As the female ages, she becomes dark brown in color. For more information on soybean cyst nematode please refer to E-210 and the Soybean Cyst Nematode website.

Click on small images below to see larger image.

SCN Burst Cyst SCN Egg at 200x SCN Egg and Juvenile
Crushed SCN female with eggs (45x) SCN Egg at 400x SCN Egg and Juvenile at 100x
SCN Females SCN-Infected Root
SCN Females on Soybean Root
at 30x
SCN-Infected Soybean Roots
SCN Symptoms on Soybeans
Above-ground symptoms, when present, mimic nutrient deficiencies or other stress factors

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Plant and Pest Digital Library and Digitally Assisted Diagnosis, Purdue University, West Lafayette, Indiana.

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