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EFFICACY OF LOCAL ISOLATE OF STflNfRNfMA CARPOCAPSAf AGAINST PLUTfLLA XYLOSTfLLA (L)

Saurav Gupta, V.K. Kaul, Uma Shankar, Sanjeev Rai

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Abstract

Experiments were conducted in the laboratory to find out the pathogenecity of local isolate of Steinernema carpocapsae against 3rd and 4th instar larvae of Diamond back moth, Plutella xylostella (L.) The results of pathogenecity of S. carpocapsae (JMU) against 3rd and 4th instar larvae of P. xylostella reveal that after 96 hours, 100 per cent mortality was recorded in all the instars at all the doses. The LC50 values for 3rd and 4th instar ranged between 6.72 and 11.24 infective juveniles per larva. LT50 values of 3rd and 4th instar larvae were 23.14 and 27.62 hours. In case of P. xylostella maximum infective juveniles (0.33 X 10) were produced from 4t instar larva at a dose of 80 infective juveniles per larva while as minimum number of infective juveniles (0.12 X 10) was obtained from 3rd instar larva at a dose of 10 infective juveniles per larva.

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What this paper is about

Experiments were conducted in the laboratory to find out the pathogenecity of local isolate of Steinernema carpocapsae against 3rd and 4th instar larvae of Diamond back moth, Plutella xylostella (L.) The results of pathogenecity of S. carpocapsae (JMU) against 3rd and 4th instar larvae of P. xylostella reveal that after 96 hours, 100 per cent mortality was recorded in all the instars at all the doses. The LC50 values for 3rd and 4th instar ranged between 6.72 and 11.24 infective juveniles per larva. LT50 values of 3rd and 4th instar larvae were 23.14 and 27.62 hours. In case of P. xylostella maximum infective juveniles (0.33 X 10) were produced from 4t instar larva at a dose of 80 infective juveniles per larva while as minimum number of infective juveniles (0.12 X 10) was obtained from 3rd instar larva at a dose of 10 infective juveniles per larva.

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Available abstract

Experiments were conducted in the laboratory to find out the pathogenecity of local isolate of Steinernema carpocapsae against 3rd and 4th instar larvae of Diamond back moth, Plutella xylostella (L.) The results of pathogenecity of S. carpocapsae (JMU) against 3rd and 4th instar larvae of P. xylostella reveal that after 96 hours, 100 per cent mortality was recorded in all the instars at all the doses. The LC50 values for 3rd and 4th instar ranged between 6.72 and 11.24 infective juveniles per larva. LT50 values of 3rd and 4th instar larvae were 23.14 and 27.62 hours. In case of P. xylostella maximum infective juveniles (0.33 X 10) were produced from 4t instar larva at a dose of 80 infective juveniles per larva while as minimum number of infective juveniles (0.12 X 10) was obtained from 3rd instar larva at a dose of 10 infective juveniles per larva.

Key concepts: Instar, Larva, Plutella, Biology, Veterinary medicine, Toxicology, Botany, Medicine

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EFFICACY OF LOCAL ISOLATE OF STflNfRNfMA CARPOCAPSAf AGAINST PLUTfLLA XYLOSTfLLA (L) — Research Paper | ScholarLens