COMPARATIVE STUDY FOR SOME BIOLOGICAL ASPECTS OF THE EGYPTIAN COTTON LEAFWORM Spodoptera littoralis(BOISD) REARED ON CASTOR BEAN LEAVES AND ARTIFICIAL DIETS.

El-Awady, S. M.; Ali, F. A.F.; Abdel-Sattar, M. M.; Hafez, S. S.

doi:10.21608/jppp.2009.166810

COMPARATIVE STUDY FOR SOME BIOLOGICAL ASPECTS OF THE EGYPTIAN COTTON LEAFWORM Spodoptera littoralis(BOISD) REARED ON CASTOR BEAN LEAVES AND ARTIFICIAL DIETS.

Document Type : Original Article

Authors

¹ Fac. of Agric., AL-Azhar Univ., Egypt.

² Central Agric. Pesticides Lab. Agric. Res. Cen. Dokki, Egypt.

10.21608/jppp.2009.166810

Abstract

Laboratory mass rearing of Spodoptera littoralis (Boisd) on two artificial diets (Kidney beans diet and broad beans diet) was carried out for five successive generations in order to compare some of their biological aspects with those reared on fresh castor bean leaves.
Results indicated that, The mean weight of the last larval instars, the percentages of larvae pupation, the mean weight of pupae, the percentages of adult emergence and the number of eggs laid by a female moth were higher for the insects reared on artificial diets than those reared on fresh castor leaves. These difference in the biological aspects were more pronounced at the 5^thgeneration. for the two artificial diets examined, broad bean diet proved to be the preferable diet for rearing S. littoralis.