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plant protection tnau |
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Re: plant protection tnau
Tamil Nadu Agricultural University is an agricultural university located in Coimbatore, Tamil Nadu, India the pant Protection Fruit Borer: Methods is given below Symptoms of damage: Young larvae feed on tender foliage Mature larvae bore circular holes Thrust only a part of its body into fruit and eat the inner content Identification of pest: Eggs: Eggs are sculptured and creamy white in colour, laid singly Larva: Shows colour variation from greenish to brown. It has dark brown grey lines on the body with lateral white lines and also has dark band Pupa: Brown in colour, occurs in soil, leaf, pod and crop debris Adult: Female light pale brownish yellow stout moth, Male – Pale greenish moth V shaped speck. Forewing: olive green to pale brown with a dark brown circular spot in the centre Hindwing: is pale smoky white with a broad blackish outer margin Management: Collect and destroy the infected fruits and grown up larvae Grow simultaneously 40 days old American tall marigold and 25 days old tomato seedling at 1:16 rows Setup pheromone trap with Helilure at 12/ha Collection and destruction of damaged fruits and grown up caterpillars. Release Trichogramma pretiosum @ 1 lakh nos. /ha/release at an interval of 7 days starting from flower initiation stage based on ETL of 10% damage. For Helicoverpa armigera: HaNPV 1.5 x 1012 POBs/ha i.e. NPV of H. armigera 0.43% AS @ 3.0 ml/lit or 2 % AS @ 1.0 ml per lit For Spodoptera litura: Sl NPV 1.5 x 1012 POBs/ha Provide poison bait with carbaryl 50 WP 1.25 kg, rice bran 12.5 kg, jaggery 1.25 kg and water 7.5 lit/ha Spray Bacillus thuringiensis 2g/lit or any one of the following insecticide Medicine Insecticide Dose Azadirachtin 1.0 % EC (10000 ppm) 2.0 ml/ lit Indoxacarb 14.5 % SC 8 ml/10 lit Flubendiamide 20 WG 5 g/10 lit Novaluron 10 % EC 7.5 ml/10 lit Phosalone 35 % EC 13 ml/10 lit Quinalphos 25 % EC 1.0 ml/ lit For more Details you may Contact to the Tamil Nadu Agriculture University the contact Details Are given below Contact Details : Tamil Nadu Agricultural University, Lawley Road, Coimbatore 641003 +91 422 6611200 |
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