Home --> Fruit & Vegetable -->
Lettuce, Spinach, and Other Greens
April Featured Fact Sheet: Root-Knot Nematodes
Root-knot disease is caused by various species of Meloidogyne. It has long been considered "the nematode" disease by farmers and other plant growers because of the severe yield reduction and obvious root-galling symptoms that are caused by these pests. There are several species of root-knot nematodes found in Illinois, including M. hapla, M. incognita, M. arenaria, M. javanica, and M. naasi. Collectively, these species attack more than 2,000 different kinds of plants, including most vegetable, fruit, and field crops; many ornamentals; and numerous common weeds.
Click here to read more about Root-Knot Nematodes
Insect Factsheets
Disease Factsheets
Anthracnose
Bottom Rot
Downy Mildew
Fusarium Wilt
Gray Mold (PDF 422kb)
Verticillium Wilt (PDF 549kb)
Bacterial Leaf Spot
Corky Root
Aster Yellows
Beet Yellow Stunt
Root Knot Nematode