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Extension > Garden > Diagnose a problem > What's wrong with my plant? > Deciduous > Hawthorn > Leaves or parts of leaves missing

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Hawthorn > Leaves > Leaves or parts of leaves missing

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  • Image: Apple Scab 1
  • Image: Apple Scab 2
  • Image: Apple Scab 3

Forest tent caterpillar
Malacosoma disstria

  • Chews entire sections of leaves, often leaving some major veins; defoliation can be severe
  • Hairs along sides of body, blue and black with characteristic footprint shaped markings on top of body, almost 2 inches long when fully grown
  • Occurs in May and June
  • More information on Forest Tent Caterpillar

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