About Lesson
Tomato fruit borer( Helicoverpa armigera, Noctuidae, Lepidioptera )
- Serious and imp pest of pulses and
- Polyphagous
- Also called maize cob worm and chickpea pod borer,cotton
Damaging stage: larva
Damaging symptoms: young instar feed leaves and advanced stage fruit bore.
Identification
- Egg yellowish white, dome-shaped, laying on plants bud, flower,
- Larva: 1st instar larva has scream white dark head, the larva is spotted appearance due to skeletonized setae, 2nd instar larva is yellowish green in color with black thoracic
- Pupa: soil, reddish
- Adult: forewings are black or dark kidney-shaped marking near the center .hindwings are creamy-white with a dark brown or dark gray band on the margin.
Management
- Pheromone trap: heli lure @15/ha
- Trap crop : tomato : marigold (5: 1 ratio).
- Chrysoperla carnea(predator), chelonis insularis (parasite )cotesia glomeratus (larval parasitoid), copidosoma koechleri ( egg/larval parasitoid ).
- Trichogramma chilonis for 6 times @50000-100000 parasitoized egg/ha.
- Bacillus thuringiensis (dipel or biolep) 5gm/l.
- Helium NPV at 250CE/ha +1%jaggery along with sticker in
- Spray extract (oversoaked) of neem fruit hina berry fruit malibu ur nut (justicia ) @200gm fruit or leaves per liter of water.
- Cypermethrin, Chloropriphos, dimethoate.
