Fruit borer: Circular pinhole on fruit
Pest: Deudorix isocrates / Anar butterfly
Symptoms
A circular pinhole like spot appears at the feeding site. Later on, the area around the damaged portion turns yellowish-brown. The punctured fruits are easily infected with bacteria and fungi. As a result, the fruit rot and falls prematurely.
Control
Remove and destroy the affected fruits.
Clip off calyx cup immediately after pollination followed by two applications of neem oil @ 3 %.
Before maturity, bag the fruits with butter paper.
At flowering stage, spray NSKE 5% or neem formulations 2 ml/1.
Spray deltamethrin 2.8 EC (1.5 ml/litre of water) at fortnightly interval from the stage of flowering to fruit development.
Spray malathion 50 EC 0.1% or methomyl 40 SP @ 1.0 ml/l or azadirachtin 1500 ppm @ 3.0 ml/l at 15 days intervals commencing from initiation of flowering up to the harvesting subjected to the presence of fruit borer.