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Seedling blights

Area of impact: Seeds

Description: Seeds either rot in the ground or seedlings grow poorly and die prematurely. Often the roots rot.

Pathogen involved: Pythium, Phytophthora, Rhizoctonia, Diaporthe/Phomopsis, Fusarium and others (fungi)

Timing/Conditions: Seed rots occur early in the season; seedling blights in early to mid-season.

Contributing factors: Cool, wet, compacted soil and any conditions unfavorable for seedling growth.

Management practices: Plant high-quality seed into dry warm soil and use fungicide seed treatments in problem fields.

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