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