| Pak. J. Bot., 37(1): 149-153, 2005. | Back to Contents | ||||
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Updated: 09-07-09 | ||||
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SCREENING OF PLANT LEAVES AS GRAIN PROTECTANTS AGAINST TRIBOLIUM CASTANEUM DURING STORAGE TOOBA HAQ, N. F. USMANI AND TAHIR ABBAS
Abstract: Many species of plants have potential to be
utilized as medicinal and therapeutic agents, not only for the treatment
of various diseases of man and animals but can also be used as insect
control agents for various stored grains. Present work has been focussed
to assess the repellency and toxicity of some medicinal plants immune to
insect attack. Response varied with plant materials, insect species and
exposure time. The potential of leaves of five plants viz.,
Eucalyptus, Bougainvillea glabra,
Azadirachta indica, Saraca indica and Ricinus communis,
were selected as grain protectants against insect infestation.
Forty five days storage of wheat grain samples were tested with 5% (by
weight) of above mentioned selected test leaves which showed 78% to 76%
of repellency against Tribolium castaneum insect as compared to
the control samples of wheat grain without test leaves. PCSIR Laboratories Complex, Karachi, Pakistan. |
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