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DOI Prefix 10.20431 |
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Positive Influence of Intercrops on Natural Enemies in Groundnut Eco-System
P.Parthiban1*,C.Chinniah1,R.K.Murali Baskaran2,K.Suresh1,A.Ravikumar1
2.National Institute of Biotic Stress Management, Raipur - 493 225, Chhattisgarh, India
Citation : P.Parthiban,et.al, Positive Influence of Intercrops on Natural Enemies in Groundnut Eco-System International Journal of Research Studies in Zoology 2018, 4(2) : 1-6
Field experiment was carried out during 2014 to 2015 at Dryland Agricultural Research Station, Chettinad, Sivagangai district to find out cost-effective groundnut based intercropping system to enhance the activities of natural enemies viz., coccinellids and green lacewings. Groundnut (Arachis hypogaea Linnaeus; Variety: VRI II) when intercropped with maize (Zea mays L.; Variety; Co 6) and bajra (Pennisetum glaucum L.; Variety: Co 7) 4:1 ratio attracted the highest population of natural enemies like coccinellids and green lacewings, recording the population of 8.11 and 3.13 nos./10 plants and 5.94 and 2.27 nos./10 plants followed by groundnut + sorghum (Sorghum bicolor L.; Variety: Co 30), groundnut + redgram (Cajanus cajan L.; Variety: VBN (Rg) 3), groundnut + sesame (Sesamum indicum L.; Variety: Co 1), groundnut + marigold (Tagetes erecta L.; Variety: MDU 1) and groundnut + onion (Allium cepa L.; Variety: Co 1), while it was 5.94 and 2.27 nos./10 plants in groundnut pure crop.