15 Jan Integrated pest management in solanaceous vegetables.
सोलनैसियस (टमाटर और बैंगन) सब्जियों में एकीकृत कीट प्रबंधन Integrated Pest Management (IPM) is a component of the agro ecosystem management technology for sustainable crop production. It is knowledge intensive system and background information regarding the pest, abiotic and biotic factors agro ecosystem and management tactics required for execution of IPM programmes. A. TOMATO IPM 1. Fruit Borer (Helicoverpaarmigera) Identication:- The adult is stout and medium-sized moth and has a dark circular spot in the centre on the forewing. They lay small, single, and whitish round eggs on the trifoliate leaves beneath the topmost flower cluster. Eggs hatch in about 3-4 days and the first instars larvae initially feed on the leaves and migrate to the developing green fruit later. Symptoms: - The larvae bore into the fruits with the posterior end outside the hole. Full grown Caterpillars show characteristic whitish and dark brown longitudinal stripes. Management:- Under Open Conditions: Effective management can be done by adopting marigold as trap crop. Giving sprays of Ha NPV @ 250 LE /ha at 28,35 and 42 days after transplanting. Mechanical collection and destruction of bored fruit at periodic intervals (3-4 times) brings down the borer incidence to less than 2 per cent. In open conditions, if the incidence is high, remove infected leaves and spray Triazophos 40 EC (1ml) mixed with 7.5 g...