DISEASE OF FIELD CROPS

1. Maize
Post flowering stalk rot
Cephalosporium wilt (Black bundle disease and late wilt)
Cephalosporium acremonium/cephalosporium
maydis

2. Post flowering stalk root

3. Symptoms:

4. • Pathogen
• Conidiophores swollen or slender; conidia are one
celled, hyaline and are produced
• successively at the tip and usually embedded in a
slimy drop.
• Disease cycle
• Both the pathogens survive in soil, plant debris and
seed.
• Primary infection is by seed
• Secondary infection is by wind.
• Favourable Conditions
• High temperature and low soil moisture (drought)
favour the disease.

6. •Management
• ¾ Crop sanitation
• ¾ Crop rotation
• ¾ Avoid water stress at flowering
• ¾ Seed treatment with Thiram or captan@3g/kg
seed
• ¾ Grow resistant varieties like DHM-103, DHM 105,
Hi-Starch and Ganga Safed-2.