Fusarium wilt of watermelon is the most widespread and destructive disease of watermelon in the southeastern United States and other areas of the world. The causal fungus is named Fusarium oxysporum forma specialis (“special form”)…
Hemlock woolly adelgid (Adelges tsugae, HWA) is an aphid-like invasive pest of hemlock trees in eastern North America. The HWA is native to all hemlock species in western North America and Asia, and hemlock trees…
Phytophthora blight, crown and root rot, and fruit rot are serious problems on cucurbit and fruiting (solanaceous) vegetables in the eastern half of the United States. Short vegetable crop rotations, center-pivot irrigation, and heavy rainfall…
Southern blight is a disease of over 1,200 crops and weeds in the southern half of the United States. Among the vegetable crops affected are tomato, pepper, eggplant, snap bean, Jerusalem artichoke, and occasionally cantaloupe,…
Spotted lanternfly, Lycorma delicatula (White) Introduction Spotted lanternfly (SLF) is an invasive pest new to the United States. Despite its common name, SLF is not a fly, but a large planthopper (Hemiptera: Fulgoridae) (figures 1A…
