PATH 372 Diseases of Horticultural Crops
PATH 372 Diseases of Horticultural Crops
PATH 372 Diseases of Horticultural Crops
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DISEASES OF POMEGRANATE<br />
1) Cercospora leaf spot – Cercospora punicae<br />
Symptoms<br />
Light zonate brown spots appear on the leaves and fruits.<br />
Black and elliptic spots appear on the twigs.<br />
The affected areas in the twigs become flattened and depressed with raised edge.<br />
Such infected twigs dry up.<br />
In severe cases the whole plant dies.<br />
Survival and spread<br />
P.I: Diseased plant debris<br />
S.I: Wind borne conidia<br />
Management<br />
Pruning and destruction <strong>of</strong> destruction <strong>of</strong> diseased twigs.<br />
Application <strong>of</strong> thiophanate- methyl 0.1% or chlorothalonil 0.2% or mancozeb 0.2%<br />
2) Anthracnose – Colletotrichum gloeosporioides<br />
Symptoms<br />
Small, regular to irregular dull violet or black spots on the leaves<br />
Spots surrounded by yellow margins<br />
Infected leaves turn yellow and drop <strong>of</strong>f<br />
Small irregular lesions on the fruit<br />
Reduction in market value<br />
Favourable conditions<br />
Severe during August-September<br />
High humidity and temp ranging from 20 to 27 o C<br />
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