TEMPERATURE EFFECT ON DEVELOPMENTAL, RATE LONGEVITY AND PARASITISM OF Diaeretiella rapae (M'INTOSH) (HYMENOPTERA- APHELINIDAE) | ||||
Journal of Plant Protection and Pathology | ||||
Article 7, Volume 5, Issue 2, February 2014, Page 273-278 PDF (397.77 K) | ||||
Document Type: Original Article | ||||
DOI: 10.21608/jppp.2014.87909 | ||||
View on SCiNiTO | ||||
Authors | ||||
M. Taha1; H Abd-El wahab2; Hanaa I. Mahmoud3; A Abasse3; Inas M. Y. Moustafa4 | ||||
1Zool..Dept. Fac. . Sci(Girls).,Al- Azhar Univ.,Nasrcity Egypt. | ||||
2Plant Protection Research Institute Dokki- Giza, Egypt | ||||
3* Zool..Dept. Fac. . Sci(Girls).,Al- Azhar Univ.,Nasrcity Egypt. | ||||
4**Plant Protection Research Institute Dokki- Giza, Egypt | ||||
Abstract | ||||
Temperature- dependent, biological aspects longevity and parasitism of the parasitoid Diaeretiella rapae (M'Intosh) was measured at three constant temperatures (15, 25 and 30 oC) using Brevicoryne brassicae (L.) . The threshold (t0) and thermal units (DD's) of different stages of D. rapae at different temperatures, 15, 25 and 30 oC., were studied. The rate of development of all stages increased as the temperature increase from 15 to 30 oC. The mean of thermal units recorded 117.9, 88.84 and 222.45 DDs for egg-mummy period, mummy- adult period and adult longevity respectively. Also, the threshold development estimated as 2.4, 1.6 and 3.4 oC for egg- mummy period, mummy- adult period and adult longevity respectively. | ||||
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