IMPACT OF INTERCROPPING SYSTEM TO MINIMISE THE PEST INCIDENCE IN GROUNDNUT
Journal Title: International Journal of Agriculture Sciences - Year 2016, Vol 8, Issue 1
Abstract
Field experiment was carried out during 2014 – 2015 at DARS, Chettinad, Sivagangai district to find out cost-effective groundnut based inter-cropping system for the management of key pests. Groundnut (Arachis hypogaea Linnaeus; Variety: VRI II) when intercropped with bajra (Pennisetum glaucum L.; Variety: Co 7), sorghum (Sorghum bicolor L.; Variety: Co 30) and maize (Zea mays L.; Variety; Co 6) 4:1 ratio harboured significantly less mean population of Aproaerema modicella Deventer, recording 8.58, 9.67 and 10.00 larvae / 10 plants respectively, whereas intercropping with redgram (Cajanus cajan L.; Variety: VBN (Rg) 3), marigold (Tagetes erecta L.; Variety: MDU 1) and onion (Allium cepa L.; Variety: Co 1) recorded mean population of 11.25, 11.46 and 11.50 larvae / 10 plants. Groundnut + sesame (Sesamum indicum L.; Variety: Co 1) intercropping system recorded high mean population of 12.12 larvae / 10 plants as compared to other cropping systems while groundnut as pure crop recorded the highest mean population of 13.75 larvae/10 plants. Same trend could be noticed in turns leaflet damage by A. modicella.
Authors and Affiliations
P. PARTHIBAN
Keywords
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