Damping Off

Seedlings that died due to Damping Off

Image 1

Seedling roots damaged by damping off

Image 2

Causal Agents: (fungi ‑ Rhizoctonia solani, Pythium spp.)

Seedlings wilt and die. The lower stems have a watersoaked appearance. Damping off is usually a problem of direct-seeded watermelons germinating in cool, moist soil (Image 1), but Pythium aphanidermatum can rapidly kill new transplants in warm soils (Image 2). A soil application of mefenoxam (Ridomil Gold) at the time of planting will prevent damping-off caused by Pythium species.

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