International Journal of Health Sciences

Compilation of life tables data of Chrysoperla carnea when raized on Aphis gossypii and Melanphis sacchari
Mawada Mohammed Khider Saad, Zeinab Eltahir Bakheet Eltahir, Asma Khalid Mahmoud, Zuhair El Fadel El Abjar

Abstract
Chrysoperla carnea is a polyphagous predator. It was used as biocontrol agent because of its ability to control a variety of insect pests. This study shows the life tables data of the predator when raised on A. gossypii and M. sacchari respectively. The laboratory experiment showed that the survival rate (Lx) was 0.72 and 0.69, the net reproductive rate (RO) was 150.74 and 106.54, the weight generation time (T) was 32.62 and 32.82, the innate capacity for numerical increase (rm) was 0.07 and 0.06, and the doubling time was 9.86 and 0.06 in case of A. gossypii and M. sacchari respectively. Life tables parameters of the predator (C. carnea) when raised on M. sacchari and A. gossypii shows that the two aphids have no clear impact on the life table parameters of the chrysopid predator. The only clear impact is on the net rate of reproduction (RO). The dura aphid gave high value of RO than the cotton aphid. This means that the predator multiplies and increases in density better in the former than in the latter. It is clear that the predator perform better on dura aphid.

Full Text: PDF     DOI: 10.15640/ijhs.v10n1a3