Bio-efficacy different insecticides against jasmine blossom midge, Contarinia maculipennis Felt in Jasminum sambac L.

The bio-efficacy of five botanicals and eleven insecticides were evaluated against jasmine blossom midge, Contarinia maculipennis Felt infesting Jasminum sambac. Among the botanicals, pungam oil was the most effective treatment with least infestation followed by NSKE were able to reduce the infestation by 82.66 and 76.21 per cent, respectively. Flubendiamide 39.35 SC was the best treatment recording the greatest reduction of 85.47 per cent followed by chlorantraniliprole 18.5 SC, respectively. The results concluded that insecticides are more effective then botanic insecticides against blossom midge

ITK adoption pattern of organic farming in Tamil Nadu for the management of shoot and fruit borer, Leucinodes orbonalis Guenee in brinjal crop

Brinjal, Solanum melongena L, is a commercial grown vegetable crop cultivated by the farmers since several years.  Farmers relay mainly on pesticides for the management of L. orbonalis, one of the major destructive pest of brinjal. The awareness among the farmers is increasing day by day for organic farming and organic produce, the area under organic farming is in expanding stage in different state in India. The present study was taken to document and to understand the ITK practices of farmers growing organic brinjal in different districts in Tamil Nadu. Majority of the farmers 65.42 per cent who are practicing farmers are medium category land holding of 2 to 10 hectare and 86.70 per cent of farmers interview depend organic agriculture as main source of Income.  Use of 14 different soil amendments/ foliar spray to meet out the nutrient requirement of the organic brinjal crop. The cow based ITK product Panchagavya is a major source of nutrient substitute used by 73 percent of the farmers. They use around 14 different ITK concoctions in rotation for the management of L. orbonalis. Most commonly used ITK concoctions were Meenamilam (10 ml /lit),Neem oil (2ml/ lit), Ginger-Garlic extracts (5ml/ lit), Ten leaf extract (16.4%) moor karaisal (100ml/ lit) pungam oil (30ml/lit), tobacco leaf extract (30ml / lit) Agniasthiram (30ml/ lit) and Neemastram (25ml/ lit). A Meenamilam ITK concoctions used by 75 per cent of the farmers across the Tamil Nadu.   The present study indicates availability of an array of ITK concoctions used by the organic farmers for the management of L. orbonalis in brinjal. The information generated in the present study will be useful in designing organic IPM module for the pest management in brinjal and organic vegetable cultivation in general

Validations of pheromone trap designs for the management of brinjal shoot and fruit borer, Leucinodes orbonalis (Crambidae: Lepidoptera)

The brinjal shoot and fruit borer, Leucinodes orbonalis is the most noxious and destructive pest of brinjal and widely distributed in South Asian countries. The yield loss up to 80% was recorded in brinjal cultivation by the infestation of L. orbonalis. Two different studies were conducted in farmer’s field at Tuticorin, Tamil Nadu, India during Rabi 2017 to evaluate the efficacy of 1) Trap designs 2) Trap errection height. The comparison made on moth retention pattern of commercial Traps and indigenous bottle trap, indicated a significantly different between trap designs. Maximum mean number of moth catches was recorded in Indigenous bottle trap (1.937 moths/ day/ trap). Among the trap heights tested, trap placed at crop canopy level attracted maximum moths (3.54 moths/3 trap/day). Trap moth catch was superior in indigenous trap placed at crop canopy level