Management of lesser grain borer, Rhizopertha dominica Fab. (Coleoptera: Bostrichidae) infesting stored wheat
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Date
2014
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Publisher
MPUAT, Udaipur
Abstract
A laboratory experiment was conducted on “Management of lesser grain
borer, Rhizopertha dominica Fab. (Coleoptera: Bostrichidae) infesting stored wheat”
at Department of Entomology, Rajasthan College of Agriculture, and Post Harvest
Technology Scheme, CTE, MPUAT, Udaipur during 2013-14. Among five wheat
varieties screened against lesser grain borer, R. dominica HI-8498 was found resistant
as it recorded minimum grain damage of 1.19 per cent, minimum weight loss of 0.96
per cent and minimum population build up with 6.36 adults upto 120 days of storage.
While, Lok-1 was found susceptible as it recorded the highest grain damage of 20.38
per cent, 9.04 per cent weight loss and population build up with 26.25 adults.
Among different inert dusts evaluated for their effectiveness against lesser
grain borer upto 120 days, application of diatomaceous earth at 1.0 per cent was
found superior with significantly highest 99.50 per cent adult mortality, with
minimum grain damage (0.25%), and weight loss (0.13%) and least (0.75 adults)
population build up. While, fly ash at 0.5 per cent and cow dung ash at 0.5 per cent
were found least effective with minimum 70.30 and 72.84 per cent adult mortality,
higher population build up with 17.92 and 16.75 adults, maximum 6.43 and 5.75 per
cent grain damage and maximum 7.92 and 6.91 per cent weight loss, respectively.
Among different plant products evaluated for their effectiveness against lesser
grain borer upto120 days, neem seed kernel powder at 1.0 per cent was found superior
where no grain damage, weight loss, population build up and cent per cent adult
mortality was recorded. While, Jamun seed powder 0.5 per cent was found least
effective with 93.25 per cent adult mortality, 10.83 adults (population build up), 7.31
per cent grain damage and 7.24 per cent weight loss.
No adverse effect of inert dusts and plant products has been observed on the
germination of wheat grains upto 120 days after storage.
Description
Management of lesser grain borer, Rhizopertha dominica
Fab. (Coleoptera: Bostrichidae) infesting stored wheat
Keywords
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Citation
Lal and Sharma, 2014