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Plant Derivatives and Organics in the Management of Chilli Pests

KrishiKosh

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Title Plant Derivatives and Organics in the Management of Chilli Pests
 
Creator Jagadeesha H.G.
 
Contributor R.S. Giraddi
 
Subject Agricultural Entomology
 
Description An investigation was carried out to study the effect of plant derivatives and
fermented plant products against chilli pests viz., chilli thrips, Scirtothrips dorsalis
Hood, yellow mite, Polyphagotarsonemus latus Banks and fruit borer, Helicoverpa
armigera Hub. during Kharif, 2007 at College of Agriculture, University of
Agricultural Sciences, Dharwad.
Among the plant derivatives evaluated in-vitro against yellow mite, NSKE
(5%) proved highly effective (73.10% mortality @ 96 h after treatment) followed by
Vitex negundo L. biodynamic spray (68.10%). However, they were inferior to
standard check, dicofol.
Soil application of neemcake @ 250 kg/ha and vermicompost @ 2.5 t/ha with
reduced RDF (50%) followed by four sprays of NSKE (5%) was found to be the best
treatment in reducing chilli thrips, yellow mite, and fruit borer infesting chilli. It also
recorded least leaf curl due to thrips and mite infestation and highest dry chilli yield
(3.14 q/ha) and net returns (Rs. 7110/ha).
Among fermented plant products evaluated in-vitro against yellow mite,
Agniasthra (3%) was the best treatment (69.03% mortality at 96 h after treatment)
which was next best to standard check dicofol and NSKE (5%).
Among the fermented plant products, Agniasthra (3%) combined with soil
application of neemcake @ 250 kg/ha and vermicompost @ 2.5 t/ha, Panchagavya 5%
foliar spray with reduced RDF (50%) was found to be the best treatment in reducing
thrips, yellow mite and fruit borer and thrips and mite induced leaf curling.
All the plant derivatives and fermented plant products combined with soil
application of neemcake and vermicompost with reduced RDF (50%) were found to
be quite safe to natural enemies viz., Amblyseius sp. and coccinellids in chilli
ecosystem as evidenced by the normal activity of the predators comparable to
untreated control.
 
Date 2016-11-10T15:38:18Z
2016-11-10T15:38:18Z
2010
 
Type Thesis
 
Identifier http://krishikosh.egranth.ac.in/handle/1/84930
 
Format application/pdf
 
Publisher UAS, Dharwad