Khalifa, A., El-Husseini, M. (2015). BIOLOGY OF THE COCCINELLID PREDATOR, Clitostethus acuatus (ROSSI), IN WINTER , AS REARED ON EGG OF THE WHITE FLY , Bemisia tabaci. Journal of Plant Protection and Pathology, 6(12), 1739-1743. doi: 10.21608/jppp.2015.75805
Amany A. Khalifa; M. M. El-Husseini. "BIOLOGY OF THE COCCINELLID PREDATOR, Clitostethus acuatus (ROSSI), IN WINTER , AS REARED ON EGG OF THE WHITE FLY , Bemisia tabaci". Journal of Plant Protection and Pathology, 6, 12, 2015, 1739-1743. doi: 10.21608/jppp.2015.75805
Khalifa, A., El-Husseini, M. (2015). 'BIOLOGY OF THE COCCINELLID PREDATOR, Clitostethus acuatus (ROSSI), IN WINTER , AS REARED ON EGG OF THE WHITE FLY , Bemisia tabaci', Journal of Plant Protection and Pathology, 6(12), pp. 1739-1743. doi: 10.21608/jppp.2015.75805
Khalifa, A., El-Husseini, M. BIOLOGY OF THE COCCINELLID PREDATOR, Clitostethus acuatus (ROSSI), IN WINTER , AS REARED ON EGG OF THE WHITE FLY , Bemisia tabaci. Journal of Plant Protection and Pathology, 2015; 6(12): 1739-1743. doi: 10.21608/jppp.2015.75805
BIOLOGY OF THE COCCINELLID PREDATOR, Clitostethus acuatus (ROSSI), IN WINTER , AS REARED ON EGG OF THE WHITE FLY , Bemisia tabaci
1plant protection Research Institute, Department of Biological control , Agricultural Research Center, Giza, Egypt.
2Center of Biological control and IPM , Fac. of Agric, Cairo univ. Giza , Egypt
Abstract
The predator, Clitostethusarcuatus (Rossi) is an efficient natural enemy against several homopterous insects. It overwinters under cold conditions as an adult .In this investigation , the diapausing predator turned into active by rearing under laboratory condations of 15-20 ْ C, and 59-80% R.H. At these conditions, incubation period lasted for 9.8 + 0.20 days, larval stage for 23.5 + 0.13 days, pupal stage for 8.3 + 0.05 days. Total development period took 40-49 days. Egg hatchability was quiet high ( 92 % ), and the sex ratio was 2 : 3 for the females and males, respectively. These results wuld be useful , if the mass-rearing of the predator was initated early in the season. Thus, the predator could be available as early as possible for biological control procedures .
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