Tomato Pests
Leaf Eating Caterpillar
Symptoms
- Young larva scrap leaves on ventral surface.
- Grownups defoliate crops.
Identification
- Egg: Masses appear golden brown.
- Larva: Pale greenish with dark markings, gregarious in the early stages.
- Adult: Brownish in colour, Forewings are brown colour with wavy white marking, Hind wings are white colour with a brown patch along the margin.
Management
- Grow castor as trap crop. Collect and destroy egg masses and early instar larvae.
- Set up pheromone traps @ 12/ha.
- Spray SlNPV 1.5 × 1012 POBs/ha.
- Plough the soil to expose and kill the pupae.
- Grow castor along border and irrigation channel as trap crop.
- Set up light trap @1/ha.
- Pheromone traps (Pherodin SL) @15/ ha to attract male moths.
- Collect and destroy egg masses in castor and tomato.
- Hand pick grown up larvae and kill them.
- Poison bait: Rice bran 5 Kg + Molasses or Brown sugar 500g + Carbaryl 50 WP 500g+ 3lit of water/ha. Mix the ingredients well and are kept around the field in the evening hours.
- Spray any following insecticides
|
Insecticide |
Dosage |
|---|---|
|
2 lit/ha |
|
|
Bacillus Thuringiensis Var. Kurstaki Serotype 3a, 3b, Sa II WG |
1 gm/lit |
|
1 ml/lit |
