Management of Asian Citrus Psyllids, Diaphorina citri Kuwayama, The Direct and Vector Pest of Citrus Via Synthetic Insecticides in Khyber Pakhtunkhwa, Pakistan
Management of Asian Citrus Psyllids, Diaphorina citri Kuwayama, The Direct and Vector Pest of Citrus Via Synthetic Insecticides in Khyber Pakhtunkhwa, Pakistan
Ashraf Khan1*, Suliman Shah2, Maid Zaman3 and Komal Habib2
ABSTRACT
Asian citrus psylla, Diaphorina citri Kuwayama, is considered to be the most noxious pest of almost all species and varieties of citrus and its infestation found throughout the world. It is becoming serious threat to the brightening future of citrus growing areas of Pakistan. Thirteen different insecticides were usedfor effective control against citrus psylla under field conditions. Population density of pest was recorded as number of adults per branch. Efficacy of the insecticides was evaluated as percent mortality (%) of citrus psylla. Overall highest percent mortality was observed in plants treated with combination of Nitenpyram + Chlorfenapyr (99.20 and 99.89 %) followed by Flubendiamide (89.83 and 99.39 %) and Imidacloprid (89.31 and 98.77 %) after spray 1 and 2, respectively. Least effective insecticide was proved to be Melathion with 39.79 and 65.43 percent reduction in citrus psyllidspopulation except untreated plants with 9.27 and 15.94 percent decrease after first and second spray, respectively. Decline in overall population recorded from 91.73 to 13.20 and 17.40 to 4.43 percent after multiple sprays, respectively. All the insecticides endowed withstatistically significant control of citrus psylla comparable to untreated plants.
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