Leaves Stalks	RHUBARB - Rheum rhaponticum AFFECTING LEAVES: CONDITION CAUSE Yellow, curling leaf margins, wilted plants Leaf hoppers Yellow leaves, slow growth Nitrogen deficiency Wilting, yellow leaves, marginal leaf browning Verticillium wilt (Verticillium spp.) Small, round, brown spots on leaves Fungal disease AFFECTING STALKS: CONDITION CAUSE Holes chewed in stalks Worms, including European corn borer (Ostrinia nubilalis) and Imported Cabbage worm (Pieris rapae
Missoula County Extension Office; Missoula, Montana 59808 - Updated for 2006