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Indian Journal of Natural Products and Resources (IJNPR)
[Formerly Natural Product Radiance (NPR)]
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NPR Vol.4(2) [March-April 2005] >

Title: Efficacy of Neem in combination with cow urine against mustard aphid and its effect on coccinellid predators
Authors: Gupta, M P
Keywords: Neem kernel extract
Neem leaf extract
Cow urine
Mustard aphid
Lipaphis erysimi
Coccinellid beetles
Issue Date: Apr-2005
Publisher: CSIR
IPC CodeInt. cl.7—A01N 65/00
Abstract: Natural Product Radiance - Mar. 2005Neem leaf extracts (NLE) and neem kernel extracts (NKE) in cow urine, neem oil, insecticides Phosphamidon, Dimethoate and their combinations were evaluated against the mustard aphid, Lipaphis erysimi Kalt. alongwith their impact on the activity of predator, coccinellid beetles. The treatments significantly reduced incidence of mustard aphid and increased the grain yield of mustard. Combination treatments of Dimethoate 0.03% either with NKE 3% or NLE 3% followed by Dimethoate 0.045% and Phosphamidon 0.04% were most effective in reducing the aphid incidence. Grain yield was maximum in Phosphamidon 0.04% followed by neem oil 1% + Dimethoate 0.03% and NKE 3%. Net profit was also maximum in phosphamidon (Rs. 9246/ha) and NKE 3% (Rs. 5938/ha). Whereas, incremental cost benefit ratio was highest in NKE 2% (15.5) and NKE 3% (15.1). The results conclude that the incidence of mustard aphid can be safely and successfully managed by adopting 3 or 4 foliar sprays of neem kernel extract (in cow urine) 3% either alone or in combination with reduced dose of Dimethoate 0.03%.
Page(s): 102-106
ISSN: 0975-1092 (Online); 0972-592X (Print)
Source:NPR Vol.4(2) [March-April 2005]

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