Abstract
AbstractCataloguing of different insect pests occurring in black gram, screening of black gram genotypes against major insect pests and their incidence on black gram at three different sowing times were investigated at Agricultural Research Station Farm, Tamil Nadu Agricultural University, Kovilpatti, Tuticorin District. Totally, 11 species of insect pests were identified in black gram ecosystem. Among the 10 black gram genotypes screened, KBG 06 016 recorded minimum population of leafhoppers during both the years and KBG 05 007 and KBG 06 021 showed minimum population of aphid during 2010–2011 and 2011–2012, respectively. The minimum damage by pod borer was noticed in KBG 04 003 and KBG 08 001 during 2010–2011 and 2011–2012, respectively. The minimum number of leafhoppers, aphids and pod borers were observed in monsoon, post-monsoon and pre-monsoon sown black gram, respectively.
Highlights
Black gram (Vigna mungo (L.) Hepper) is a highly nutritious short duration remunerative pulse crop cultivated worldwide in tropical and subtropical regions of the world
The present study was undertaken to catalogue and assess the intensity of insect pests occurring on black gram, screening of different black gram cultures against major insect pests and evaluating the effect of sowing time on the incidence of insect pests on black gram under dryland condition
Screening of black gram cultures against major insect pests Ten black gram cultures along with three standard checks viz. VBN 1, VBN 4 and VBN 5 were raised in a single row of 4 m length and observations were recorded on 10 plants randomly selected from each culture
Summary
Black gram (Vigna mungo (L.) Hepper) is a highly nutritious short duration remunerative pulse crop cultivated worldwide in tropical and subtropical regions of the world. It contains 24% protein, 3.2% minerals and 59.6% carbohydrate (Bakr, Afzal, Hamid, Haque, & Aktar, 2004). Black gram plays a vital role in maintaining the nitrogen balance in the soil. India is the largest producer and consumer of black gram in the world. The area under black gram in India is about 3.25 m ha with production of
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