Potatoes

Late blight is the plant disease that caused the Irish Potato Famine in the 1840s. This water mold disease is potentially destructive to tomatoes and potatoes that are grown in Maryland, but it rarely occurs here.

Potato tuberworms feed between leaf surfaces and bore into stems of potato plants.

Puckered, curling leaves may be an indication of leafhopper insects feeding on vegetable plants.

Common scab is a bacterial disease that produces circular, corky, raised lesions or bumps on the tuber or root surface of potatoes.

Colorado potato beetles will create holes in eggplant or potato leaves.