| Titles |
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English :
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Damage assessment due to hooded crow corvus coron Sardonius (Kleinschmidt) at some cultivated plant crops at newly reclaimed fields In Sharkia Governorate
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| Abstract |
The Hooded crow is one of large-sized passerine birds has been noted as a pest of agricultural experimental plots at newly reclaimed area at Sharkia Governorate. A small flocks and individuals of this noxious bird were feeding on grains or seeds and the tender leaves of newly sprouted wheat, zea maize and sugar beet immediately after sowing. Damage was mainly at the edges of the field plots adjacent stands of hedgerows of orchards and other wild trees and highly damage was recorded after 6 days after sowing in wheat and zea maize with values 7.35 and 11.92 %, but in sugar beet sprouts was 5.99 % at 16 days from sowing. Birds were visiting the fields in small flocks and digging at the soil to search for the seeds or grains and probed beneath the soil surface and made some holes and attack the roots of seedling or seeds after sowing. During this period on which the Hooded crows were feeding in both fresh green vegetative and seeds at the light soil with suitable percentage of moisture which facilitate the searching for seed, grains and the roots of seedlings with the remaining of that seeds or grains. On the other hand the same bird attacks the vegetarian and horticultural crops such as Tomato, strawberry and Apple during the maturing stage and marketing and caused damage with the highest values 10.57, 5.57 and 5.48 % at the third week from the beginning of the harvest of each crop respectively. Maturing stage 0f zea maize during the period from 35 to 42 days after silking with recorded values 13.21 and 13.90 % in ears without pruning. In depredated of 19.61 and 20.89 in those with pruning as this primeval agricultural operation makes the ears more available to bird’s attacks. Birds were seen in the field almost at all hours especially at the early morning and late afternoon. The normal food of Hooded crow is insects, snails, small vertebrates and eggs of other birds, but we speculate that they also require fresh green vegetation, seeds and grains thus they considered omnivorous birds. The conclusion that for minimizing the damage induced by hooded crows, greater synchrony of sowing activities would have spread the damage and modifications to the timing of farm events can also obviate problems associated with bird depredation.
Keywords: Depredation, Hooded crow, wild bird, Damage, Pruning, probed.
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| Publication year |
2002
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| Pages |
88-92
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| Availability location |
معهد بحوث وقاية النباتات
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| Availability number |
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| Organization Name |
Plant Protection Research Institute (PPRI)
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| City |
جيزة
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| serial title |
المؤتمر الدولي الثاني لمعهد بحوث وقاية النباتات
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| Author(s) from ARC |
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| Agris Categories |
Protection of plants - General aspects
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AGROVOC
TERMS |
Crops.
Crows.
Damage.
Egypt.
Pruning.
Reclaimed land.
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| Publication Type |
Conference/Workshop
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