Studies on the varietal preference of rice weevil, Sitophilus oryzae L. and its management in stored wheat
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Date
2010
Authors
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Journal ISSN
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Publisher
MPUAT, Udaipur
Abstract
Investigation on “Varietal preference, life cycle and management of rice
weevil, Sitophilus oryzae L.” was carried out in the Storage laboratory of the
Department of Entomology, Rajasthan College of Agriculture, Udaipur during the
year 2008.
LOK-1 variety of wheat was least preferred host by S. oryzae while MP
1203 was most preferred host. LOK-1 and RAJ 3777 provided less percent grain
damage with minimum loss in weight which may be result of hardness of the
grains.
The studies on the biology of rice weevil has shown that average growth
index was observed 2.64. Adult longivity for male and female was 33.33 and
39.43 days, respectively.
The management practices comprising of plant materials and inert dusts
were used to over come the problem of S oryzae; diatomaceous earth (0.05%)
exhibited an excellent treatment with respect to minimum percentage of grain
damage as well as percent grain weight loss followed by black pepper powder
(10g/kg) and Custard apple seed powder (10g/kg) of grain.
Description
Studies on the varietal preference of rice weevil,
Sitophilus oryzae L. and its management in
stored wheat
Keywords
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Citation
Kumar and Hussain, 2010