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Extension > Garden > Diagnose a problem > What's wrong with my plant? > Vegetable > Lettuce & Endive > Plant Wilts

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Lettuce & Endive > Whole plant > Plant Wilts

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White Mold (aka Lettuce Drop)
Sclerotinia sclerotiorum and Sclerotinia minor

  • Plant wilts and outer leaves drop to the ground
  • Base of the outer leaves are tan and water soaked
  • Rot progresses into the heart of the head
  • White cottony mold with small hard, black raisin like fungal structures can be seen at the base of the plant
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Bacterial Leaf Spot
Xanthomonas campestris pv. Vitians

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Flea Beetles
Disonycha xanthomelas, Systena blanda, and Phyllotreta spp.

  • Heavy feeding may cause wilting
  • Adult feeding on leaves creates shallow pits and small, irregular holes giving it a "shot hole" appearance
  • Adults are small (1/16 to 1/8 inch long), and vary in color from black, bronze, bluish, or brown to metallic gray, while some species have stripes
  • Present throughout the growing season
  • More information on Flea Beetles...
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Green Peach Aphid and Turnip Aphid
Myzus persicae, Lipaphis erysimi

  • Feeding by larger numbers of aphids can cause curling, stunting, and wilting of leaves
  • Feeding by small or moderate numbers of aphids usually does not cause visible symptoms
  • Small insects (1/10th inch long), pear-shaped, usually greenish; clustered on underside of leaves
  • Active during spring and summer
  • More information on Green Peach Aphid and Turnip Aphid ...

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