LANTANA CAMARA AS AN ALTERNATIVE FOR BIOLOGICAL CONTROL OF PULSE BEETLE CALLOSOBRUCHUS MACULATUSANUJ RANJAN, ASHWANI KUMAR, SHALINI THAKUR, KHUSHBU GULATI, CHITRA SHRIVASTAV AND TANU JINDAL
Callosobruchus maculatus cause huge annual loss to leguminous crops in every part of the world. Several plants have been previously investigated for its insecticidal, activity against varieties of insects. In the present study aerial parts of Lantana camara (L.camara) were evaluated for its insecticidal activities against C. maculatus. Ovipositions, egg deterrent activity and effects on adult emergence for C. maculates and germinations, weight and seed loss against Vigna radiata were carried out with methanol extract of L. camara. Seven different concentrations were studied among which 5.0% dose was highly significant. This dose exhibited 71.15% of egg deterrent activity and also very significantly prevented the seeds from weight loss and seed loss by 72.07% and 71.73% respectively. The adult emergence was lowest at 10.0% with 55.65% followed by 56.33% and 59.28% at 7.5% and 5.0% orderly. The experimental seeds had 95.25% germination in normal conditions and 37.5% after being exposed to the beetles. Seeds treated with 5.0% had considerably 84.25% germination even after exposure of pests. Study infers that 5.0% methanolic extract is most efficient to protect seeds from pulse beetle infestation. This dose helps in protecting crop byoviposition deterrence thereby reducing adult emergence, besides it also prevents weight loss and complete seed loss. Thus dose of 5% extract of L. camara alsoprotects germplasm of the seeds so that they can be used for further cultivation.
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