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Seasonal abundance of certain sucking pests of soybean in different sowing dates [electronic resource].

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Sourial, Louise S

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Language: English Summary language: Arabic Description: p.2099-2107Other title:

التعداد الموسمي لبعض الآفات الثاقبة الماصة علي فول الصويا في مواعيد زراعة مختلفة [Added title page title]

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Zagazig journal of agricultural research, 2002 v. 29 (6) [electronic resource].

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In: Zagazig Journal of Agricultural Research 2002.v.29(6)Summary: Field experiments were conducted in two locations at El-Minia Governorate to determine the effect of sowing date of soybean on infestation with three piercing and sucking pests.(aphid, Aphis gossypii Glov., whitefly, Bemisia tabaci Genn. and spider mite, Tetranychus arabicuS Attiah ). Applied sowing dates were 20th of May 2nd and 10th of June in the two locations. The mean total numbers of aphid/ plant in the two locations were low in the 20th of May compared with the two other planting dates. Meanwhile, whitefly level of infestation was also significantly low in the same sowing date. On the other hand, the recommended date for sowing soybean to avoid severe infestation with mites was the 10th of June.

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Field experiments were conducted in two locations at El-Minia Governorate to determine the effect of sowing date of soybean on infestation with three piercing and sucking pests.(aphid, Aphis gossypii Glov., whitefly, Bemisia tabaci Genn. and spider mite, Tetranychus arabicuS Attiah ). Applied sowing dates were 20th of May 2nd and 10th of June in the two locations. The mean total numbers of aphid/ plant in the two locations were low in the 20th of May compared with the two other planting dates. Meanwhile, whitefly level of infestation was also significantly low in the same sowing date. On the other hand, the recommended date for sowing soybean to avoid severe infestation with mites was the 10th of June.