Management of gram pod borer Helicoverpa armigera (Hubner) by bio-pesticides in farmscaping system

Abstract

The investigation on, “Gram pod borer Helicoverpa armigera (Hubner) management by bio-pesticides in farmscaping system” was conducted on Instructional Farm and Department of Entomology, Rajasthan College of Agriculture, Udaipur during Rabi 2018. Gram variety GNG-1581 was sown with different farms caped treatments to compare the impact of bordered plants viz., mustard, marigold and sunflower along with bio-pesticide protectants i.e. foliar applications of NSKE (5%) as prophylactic spray after one month of germination and Ha NPV @ 250 LE/ ha (when 1-2 larvae per m-row was observed). The marketable yield of gram among different farms caped treatment ranged from 1.26 to 1.89 kg/ plot. The maximum marketable yield of 1.89 kg/ plot was recorded in gram bordered with marigold with bio pesticide application The highest cost benefit ratio of 1:1.92, was recorded for gram bordered with marigold with biopesticide treatment; while, lowest cost benefit ratio of 1:1.33 was recorded for gram without farms caped treatment.