Damping off: Pythium aphanidermatum, Pythium indicum, , Phytophthora parasitica, Rhizoctonia solani and Sclerotium rolfsii .

Symptom

• Sudden collapsing of the seed lings occur in the seed bed.
• The seedlings are attacked at the collar region and the attacked seedlings are toppled down.
• The disease spreads through fungi present in the soil. The disease spreads through fungi present in the soil.

Management

• Treat the seeds with Trichoderma asperellum @ 4 g / kg or Pseudomonas fluorescens @ 10 g /kg of seeds 24 hours before sowing.
• Apply P. fluorescens to soil @ 2.5 kg/ha with 50 kg of FYM.
• Avoid stagnation of water. Drench with copper oxychloride at 2.5 g/l @ 4 l/sq.m.
• Seed treatment with antagonistic fungus viz. Trichoderma harzianum@ 4 g/kg seed or T. viride @ 4 g/kg seed along with application of pressmud @ 5 kg/m2 or carbofuran 3G @10 g/m2.
• Application of carbofuran 3G @ 10g/m2at the time of sowing. Intercrop with marigold at 4:1 ratio. Apply Pseudomonas fluorescens @ 10g/m2 for nematodes and damping off disease complex.
• The disease can be controlled by seed treatment with agrosan or ceresin @2gm/kg of seed.