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.​

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