Management of Poplar defoliator (Clostera cupreata) through herbal approach
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Poplar is a fast growing exotic tree species which has been extensively planted in India under various afforestation/reforestation programmes. Poplar Timber is the backbone of vibrant plywood, board, match, paper and sports goods industries. The cultivation of poplar has generated huge employment in the rural sector in India and has overall improved the rural economy. Poplar is highly prone to insect attack, approximately, 108 insect species are causing damage. Out of these, Poplar defoliator- Clostera cupreata (Lepidoptera: Notontidae) is one of the most damaging pest of poplar which defoliate poplar plantation and often appears in outbreaks even causes death of tree. Therefore, a concept was developed to protect the plant by the plant. Regarding this, a number of plant extracts were screened and tested against the larvicidal efficacy of C.cuperata. Out of four plants, leaves of Calotropis procera were tested for larvicidal activities against poplar defoliator. The 3rd instar larvae of C. cupreata were exposed to a wide range of concentrations (0.0625 to 2.00%). LC50 value of each sample and control was recorded simultaneously. After repeated experiments, a herbal formulation (Biopesticide) was developed and it showed almost 70% efficacies against Clostera cupreata (poplar defoliator). Field trials were also carried out in northern part of India at farmer’s field. Novel, environment friendly chemicals for control of plant diseases, crop-damaging pests are needed to replace pesticides that have been withdrawn from the market due to regulatory or economic reasons, ordue to development of pest resistance.
Keywords: Poplar, Poplar defoliator, Clostera cupreata (Lepidoptera: Notontidae), environment friendly chemicals , larvicidal efficacy
ID: ID 3485340