Author(s):

Shyamvir Singh and Arvind Kumar

Abstract: The results of two years on larval population of top borer, Scirpophaga excerptalis showed remarkable variations under the influence of various treatments and were superior over untreated control Percent reduction in larval population of top borer showed significant variation in the treatments. Treatment of endosulfan reduced the larval population to great extent (76.66%) followed by NPV (53.29%). The treatment with NSKE proved to be less effective (41.73%) against top borer. Two sprays with endosulfan gave highest per Rupee return (Rs. 4.29) followed by treatment having sprayed with neem seed kernel extract (Rs. 3.40), whereas, lowest per Rupee return of Rs 3.14 was recorded in the treatment having two sprays of NPV (Rs 3.14).

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