Amaranthus diseases A lecture on ToT training of FFS By Mr Allah Dad Khan Provincial Coordinator IPM KPK MINFAL Islamabad

Amaranthus diseases A lecture on ToT training of FFS By Mr Allah Dad Khan Provincial Coordinator IPM KPK MINFAL Islamabad

1. Amaranths diseases A Lecture To ToT trainees ( FFS) By Mr. Allah Dad Khan Provincial Coordinator IPM KPK MINFAL Pakistan

2. Damping-off Rhizoctonia  spp. Pythium  spp. Symptoms Poor germination; seedling collapse; brown-black lesions girdling stem close to soil line; seedling fail to emerge from soil Cause Fungus Comments Disease emergence favors wet soils Management Avoid planting seeds too deeply; do not plant seeds too thickly to promote air circulation around seedlings; do not over-water plants

3. Wet rot ( Choanephora rot) Choanephora cucurbitarum Water-soaked lesions on stems; lesions have hairy appearance due to presence of fungal spores; may cause loss of leaves Cause Fungus Comments Fungus mainly attacks plants that have been damaged by insects or by mechanical means; spread by air currents and via infected seed; disease emergence favors warm, moist conditions Management Plant varieties resistant to disease; only use certified seed; do not plant crop densely; treat disease with copper fungicides if it emerges

4. Anthracnose Colletotrichum gloeosporioides Necrotic lesions on leaves; dieback of leaves and branches Cause Fungus Comments Management Avoid damaging plants and creating wounds for pathogen to enter; plant resistant varieties Symptoms