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Extension > Garden > Diagnose a problem > What's wrong with my plant? > Vegetable > Summer Squash and Zucchini > Collapsed seedling

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Summer Squash and Zucchini > Seedling > Collapsed seedling

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  • Image: Damping off 1
  • Image: Damping off 2
  • Image: Damping off 3

Damping off
Pythium spp., Rhizoctonia sp., and Fusarium spp.

  • Seed may rot in soil
  • Leaves and stem appear discolored, water soaked
  • Seedling may tip over at soil line
  • Cobweb-like or cotton-like fungal growth on seedlings or potting mix
  • More information on Damping off
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  • Image:Phytophthora Blight 1
  • Image: Phytophthora Blight 2
  • Image: Phytophthora Blight 3

Phytophthora Blight
Phytophthora capsici

  • Stem and leaf petiole lesions are light to dark brown, water soaked and irregular
  • The entire plant may collapse if root and crown rot occurs
  • Large irregular brown spots on leaves
  • Fruit develop soft, water-soaked lesions which expand to large sections of the fruit
  • Infected fruit are soft, easily punctured and often collapse
  • Infected fruit are covered with white fungal growth
  • More information on Phytophthora Blight

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