Oct 14, 2015

Pests and Disease Management in Mango




 Anthracnose
Colletotrichum gleosporioides
Symptoms
Cause
Comments
Management
Small and dark spot on flowers, Sunken lesions on fruit, fruits dropping from tree before ripe
Fungus
Disease  favoured by wet conditions
Appropriate fungicide should be applied during flowering and fruit development
Powdery mildew
Odium Magniferae
Symptoms
Cause
Comments
Management
Gray/White powdery growth on leaves, flowers or fruits
Fungus
Found in all mango growing regions
Appropriate fungicide recommended, chemical sprays only need to be applied at flowering and fruit set
Algal leaf spot
Cephaleuros Virescens
Symptoms
Cause
Comments
Management
Rusty spots ( Orange color ) on both upper and lower leaf surfaces  which may coalesce to form large irregularly shaped patches
Alage
Disease affects many fruits in the tropics, infection is unsightly but often harmless
Remove all weeds around the tree, proper pruning is required, badly infested tree can be treated with copper containing fungicides
Pink disease
Erythricium salmonicolor
Symptoms
Cause
Comments
Management
White threads at forks of branches which coalesce to form a pink crust during wet conditions
Fungus
Pink disease is a destructive disease of mango grown in the wet tropics
Appropriate fungicide recommended
Bacterial Black Spot ( Bacterial Canker )
Xanthomonas campestris
Symptoms
Cause
Comments
Management
Black cankerous lesions on stems which crack and exude a gummy substance, fruit dropping from plants
Bacterium
This is found in most tropical and subtropical areas where  mango is grown
Prune out infected twigs, protective sprays of copper during wet weather helps to protect plant from the disease
Mango Tree Borer
Batocera rufomaculata
Symptoms
Cause
Comments
Management
Circular holes in the bark,  tree borers feed on the barke of twigs and chew green growing tips
Insect
Female tree borers lay their eggs in incision made in damaged mango bark, larvae feed on wood and pupate within the tree
Appropriate Insecticide recommended.
 See also :

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Pests and Disease Management in Mango
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