The present investigation aimed to study the effect of three constant temperatures (20, 25, and 30°C) on the development of the black cutworm, Agrotis ipsilon (Hüfnagel). The incubation period, larval duration, pupal duration, pre-oviposition period and duration of generation were estimated. The time required for development was decreased as the temperature increased from 20 to30 °C. The lower threshold temperatures (t0) was 11.49°C for eggs, 10.63 °C for larvae, 9.83 °C for pupae, 11.06 °C for pre-oviposition period and 10.53 °C for generation. The average thermal requirements needed for completing the development were 51.3, 303.5, 183.5, 38.1 and 575.3 degree-days for eggs, larvae, pupae, pre-oviposition period and generation, respectively.
Dahi, H., Ibrahem, W., & Ali, M. (2009). Heat Requirements for the Development of the Black cutworm, Agrotis ipsilon (Hüfnagel) (Noctuidae: Lepidoptera). Egyptian Academic Journal of Biological Sciences. A, Entomology, 2(1), 117-124. doi: 10.21608/eajbsa.2009.15502
MLA
Hassan F. Dahi; Walaa G. Ibrahem; Mohsen M. Ali. "Heat Requirements for the Development of the Black cutworm, Agrotis ipsilon (Hüfnagel) (Noctuidae: Lepidoptera)", Egyptian Academic Journal of Biological Sciences. A, Entomology, 2, 1, 2009, 117-124. doi: 10.21608/eajbsa.2009.15502
HARVARD
Dahi, H., Ibrahem, W., Ali, M. (2009). 'Heat Requirements for the Development of the Black cutworm, Agrotis ipsilon (Hüfnagel) (Noctuidae: Lepidoptera)', Egyptian Academic Journal of Biological Sciences. A, Entomology, 2(1), pp. 117-124. doi: 10.21608/eajbsa.2009.15502
VANCOUVER
Dahi, H., Ibrahem, W., Ali, M. Heat Requirements for the Development of the Black cutworm, Agrotis ipsilon (Hüfnagel) (Noctuidae: Lepidoptera). Egyptian Academic Journal of Biological Sciences. A, Entomology, 2009; 2(1): 117-124. doi: 10.21608/eajbsa.2009.15502
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