Efficacy of methylanthranilate and anthraquinone against house crow (Corvus splendens) from maize seeds and seedlings in aviary conditions in Pakistan

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Research Paper 01/04/2015
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Efficacy of methylanthranilate and anthraquinone against house crow (Corvus splendens) from maize seeds and seedlings in aviary conditions in Pakistan

Zobia Saleem, Shahzad Ahmad, Farhat Jabeen, Hammad Ahmad Khan, Sajid Yaqub, Khizar Samiullah, Robina Shaheen, Muhammad Irfan, Asif Masih
J. Bio. Env. Sci.6( 4), 435-444, April 2015.
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The prevalence of vertebrate pests particularly birds and mammals bring about massive depredation to crops and fruits throughout the world. Among the birds, rose-ringed parakeets, house crows, house sparrows, common myna and a few others are very important from economic point of view in Pakistan. House crow is unquestionably the ruthless bird pest causes extensive damage not only to the seeds of valuable crops but also to seedlings. Different chemical repellents have been reported to manage the bird damage throughout the world. Present study was aimed to investigate the efficacy of methylanthranilate and anthraquinone against house crow to control the damage of maize seeds and seedlings in the captivity. By providing seeds and seedlings treated with different concentrations of repellents the best concentration was evaluated by comparing the consumed and unconsumed seeds and seedlings. Feeding responses of these birds against different doses of these repellents were investigated with the help of the closed circuit cameras in the aviary conditions. In whole experiment among trial and control group highly significant difference (P<0.01) was seen. Among repellents anthraquinone was found more effective than methylanthranilate and showed highly significant (P<0.01) difference when seeds of maize were offered to house crows while both methylanthranilate and anthraquinone have statistically non-significant (P>0.05) difference when seedlings of maize were provides to house crows. Among concentrations a highly significant (P<0.01) variation was computed. Videotaped examination pointed out that house crows were influenced quickly by consuming maize seeds treated with higher concentration of both repellent.


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