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.