HOST PREFERENCE OF Icerya seychellarum (WESTWOOD) AND ITS EFFECT ON INSECT POPULATION AND FECUNDITY.

Document Type : Original Article

Author

Department of Economic Entomology and Pesticides, Fac. of Agric., Cairo Univ., Giza, Egypt.

Abstract

Host preference of I.seychellarum (Westwood) (Homoptera, Margarodidae) on five mango cultivars showed that the highest mean number of insects in two studied years (2005 & 2006) was 16.7 individuals/ leaf occurred on Baladi cultivar, while the lowest mean number 0.0 individuals/ leaf occurred on Alphonso cultivar. The host plants could be arranged descendingly according to their preference by the insects in both studied years as follows: Baladi (16.7 individuals / leaf), Hendi (10.1 individuals/leaf), Ewasi (6.7 individuals / leaf), Timour (3.2 individual leaf) and Alphonso (0.0 individuals/ leaf). The egg production varied on different host plants with the maximum records on Baladi cultivar (37.6 eggs/ female) and the minimum on Timour cultivar (19.8 eggs/ female).