Population Dynamics, Efficacy of Botanical Extracts and Synthetic Insecticides for The Control of Pea Leaf Miner (Phytomyza horticola Goureau) (Diptera: Agromyzidae) Under the Climatic Conditions of Baltistan, Pakistan

Abstract

Field Studies were carried out for the effective management of Pea Leaf Miner (Phytomyza horticola Goureau) through synthetic insecticides CURACRON®, Belt ® and botanical extracts of Almond Extract, @3.00%, Walnut Extract @3.00 on seasonal plots of Pea plant at Baltistan region during 2015-16.The treatments were applied at their calculated doses, when 3-5 leaves per plant were emerged in the experimental plot. After application of treatments data were taken as by counting number of damaged leaves per plant from selected five pea plant in each plot. Data were noted as damaged leaves per plant after 1st week, 2nd week, 3rd week, 4th week and 5th week respectively. Overall percent damage per plant by Pea Leaf Miner, showed that statistically all the treatments were non-significant to each other but significantly different from control plot. Seasonal mean percent damage was the highest (9.12%) in the check plot while lowest percent damage (2.83%) was recorded from the plot treated with CURACRON® followed by Belt ®, Almond Extract, @3.00% and Walnut Extract @3.00 (2.93, 4.26 and 4.32 %) respectively. Population trend in relation with temperature revealed that there was a positive significant correlation (p