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Thermal constant and degree-day requirements for the development of the eggplant stem borer, Euzophera osseatella Triet. (Lepidoptera: pyralidae) [electronic resource].

By:

Ali, M. A

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Language: English Summary language: Arabic Description: P. 899-906Other title:

الوحدات الحرارية ودرجات الحرارة الثابتة المتطلبة لنمو أطوار حفار ساق الباذنجان [Added title page title]

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Egyptian journal of agricultural research, 2011 v. 89 (3) [electronic resource].

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In: Egyptian Journal of Agricultural Research 2011.v.89(3)Summary: (Lepidpterra :Pyralidae) was studied at constant temperatures 15,20, 25 and 30C° :± 1 C°. Development of immature stages was accelerated as the tested temperatures increased. Total developmental time averaged 201, 93.43, 57.2 and 48.17 days atl5, 20, 25 and 30C respectively. Generation period ranged between 205.6 and 49.17 days depending on rearing temperature. Adult female survjved slightly longer than male. Fecundity was higher at (15C) than 30C. Female deposited 134.4 eggs at 15 C, while this number drastically decreased to 62.0 eggs at 30 Ca. However, egg hatchability (%66.25) showed a reversed trend.

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(Lepidpterra :Pyralidae) was studied at constant temperatures 15,20, 25 and 30C° :± 1 C°. Development of immature stages was accelerated as the tested temperatures increased. Total developmental time averaged 201, 93.43, 57.2 and 48.17 days atl5, 20, 25 and 30C respectively. Generation period ranged between 205.6 and 49.17 days depending on rearing temperature. Adult female survjved slightly longer than male. Fecundity was higher at (15C) than 30C. Female deposited 134.4 eggs at 15 C, while this number drastically decreased to 62.0 eggs at 30 Ca. However, egg hatchability (%66.25) showed a reversed trend.

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