Fruit borer in Brinjal

TNAU Agritech Portal :: Crop Protection

Shoot and fruit borer: Leucinodes orbonalis
Symptoms of damage Withering of terminal shoots/ dead hearts Bore holes on shoots  and fruits plugged with excreta Shedding of flower buds Withering and drying of leaves

Identification of pest

• Eggs  -  Creamy white eggs
• Larva -  pink in colour
• Pupa- greyish boat shaped cocoon
• Adult-   a medium  sized moth
• Forewings- having black and brown patches and dots on white colour
• Hind wings – opalescent with black dots

Management

Remove the affected terminal shoot showing boreholes. Remove the affected fruits and destroy. Avoid continuous cropping of brinjal crop Grow the varieties with long and narrow fruits in endemic areas Install pheromone trap@12/ha Encourage the activity of larval parasitoids: Pristomerus testaceus Cremastus flavoorbitalis Avoid use of synthetic pyrethroids Avoid using insecticides at the time of fruit maturation and harvest Neem seed kernel extract (NSKE) 5 % or any one of the following chemicals starting from one month after planting at 15 days interval

Insecticide Dose Azadirachtin 1.0% EC (10000 ppm) 3.0  ml/lit. Azadirachtin 0.03 % WSP (300 ppm) 5.0  g/lit. Chlorpyrifos 20 % EC 1.0  ml/lit. Dimethoate 30 % EC 7.0  ml/10 lit. Emamectin benzoate 5 % SG 4 g/10 lit. Flubendiamide 20 WDG 7.5 g/10 lit. Phosalone 35 % EC 1.5  ml/lit. Quinalphos 25 % EC 1.5 ml/lit. Thiodicarb 75 % WP 2.0 g/lit. Thiometon 25 % EC 1.0 ml/lit. Trichlorofon 50 % EC 1.0 ml/lit. Triazophos 40 % EC 2.5 ml/lit.