TOMATO ::MAJOR PESTS:: FRUIT BORER

TOMATO :: MAJOR PESTS :: FRUIT BORER

1.FRUIT BORER: Helicoverpa armigera (Noctuidae: Lepidoptera)
For distribution and status, host range, damage symptoms, bionomics refer cotton

Single caterpillar can destroy 2-8 fruits.

Bionomics

Management

Collect and destroy the infested fruits and grown up larvae.
Grow less susceptible genotypes Rupali, Roma, Pusa red plum.
Grow resistant cultivars like BT 1, T 32, T 27, Punjab Kesri, Punjab Chuhashu, Pant Bahar, Azad Pusa Hybrid 4
Grow simultaneously 40 days old African tall marigold and 25 days old tomato seedling at 1:10 rows to attract Helicoverpa adults for egg laying.
Set up pheromone trap with Helilure at 15/ha and change the lure once in 15 days.
Release T. chilonis 6 times@ 50,000/ha per week coinciding with flowering time based on ETL.
Release Chrysoperla carnea at weekly interval at 50,000 eggs or grubs / ha from 30 days after planting.
Spray any of the following insecticides with 500 L water/ha

Azadirachtin 1.0% 1.0-1.5 L	NPV of H. armigera 0.43% AS 400-600
Indoxacarb 14.5 SC 400-500 ml	NPV of H. armigera 2% AS 500
Lambda cyhalothrin 5 EC 300 ml	Methomyl 40 SP 750-1125 g
Novaluron 10 EC 750 ml	Endosulfan 35 EC 1.0 L
Carbaryl 50 WP 1 kg	B. thuringiensis 1 g/lit
Quinalphos 1250 ml

Do not spray insecticides after maturity of fruits.
Encourage activity of parasitoid Eucelatoria bryani, Campoletes, Chelonus etc.,