The Research presented in this book was conducted in the Bio systematic laboratory in the Department of Agri. Entomology, University of Agriculture Faisalabad. Collection of Aedes albopictues was done on weekly basis from the botanical gardan of the University and from different localities of Faisalabad by placing tires, collected mosquitoes were rearded in the insectry. Fifteen plants and Thirteen citrus cultivars were used as larvicide. Soxhelt apparatus was used for extraction of oil by using different plant parts. Ether was used as solvent, 30 late 3rd and early 4th instar larvae were exposed at different concentrations. Lemon seed, red blood orange seed and rough lemon seed extracts were considered as best in terms of LC50, LC90, LT50 and percent mortalities when compared with other plant extracts.

Mango (Mangifera indica L.) is an important fruit crop of Asia and is widely found in Pakistan. Over the last few years the attack of gall formers on mango has increased tremendously in mango growing areas of the world. Little is known about their behavior, taxonomy and management practices particularly in Pakistan. This book, therefore, focuses on the varietal preference and within tree distributional patterns of gall forming insects of mango and the factors (morphological and physiological) mediating their abundance. The abundance of galls has been studied in different mango cultivars and within the individual cultivar as well. The analyses should help shed some light on the importance of leaf traits mediating gall abundance and should be especially useful to field ecologists with the interest to explore the behavior of gall formers and devise management plans.