The efficacies of plant extracts, bioinsecticides, oil and insecticides for controlling mangosteen thrips (Thysanoptera: Thripidae).

摘要

Fourteen methods were used for controlling mangosteen thrips in a demonstration orchard with 4-time spraying. After the 4-time spraying, more than 90% effective methods were carbosulfan 20% EC, fipronil 5% SC, imidacloprid 10% SL, petroleum oil 83.9% EC+Thai neem aza. 0.5%, petroleum oil 83.9% EC+tobacco 3%, petroleum oil 83.9% EC+derris 1% and tobacco 3%. The methods decreasing rough-scarred fruits at harvesting were a group of insecticides: carbosulfan 20% EC, fipronil 5% SC and imidacloprid 10% SL, a group of oil and plant extracts: petroleum oil 83.9% EC+tobacco 3%; all methods were not significantly different.