藥劑撒布與塗刷防治柑桔潛蛾比較试驗Phyllocnistis citrella

Comparative Study of Spraying and Painting Insecticides against Citrus Leaf Miner, Phyllocnistis Citrella (Phyllocnistidae, Lept.)

吴國家(Kuo-Chia Wu) ； 陶家駒(Chia-Chu Tao)

《中華農業研究》 26卷2期 (1977/06) Pp. 158-168

https://doi.org/10.29951/JARC.197706.0009

摘要

當柑桔嫩芽吐露時，及吐芽俊每隔7至10天，用納乃得(Lannate) 5~10%，24%溶液加水1.4~2.8倍，塗刷樹幹四周，長及其直徑之3~4倍，連行2次或3次塗刷可以防治柑桔潛蛾Phyllocnistis citrella Stn.，其效果與0.025%~0.05%納乃得溶液撒布法相同。塗刷防治法不致引起柑桔紅蟎之患，不若採用撒布方法防治潛蛾俊，尚须另行防治柑桔紅蟎之費事，因此可以達成柑桔嫩枝葉害蟲之綜合防治目的，且無採用有愛速靈(Azodrin)等防治有新芽脱落，新葉不正及生長停止等葉害现象。納乃得與24%萬待得(Vydate)溶液之最低有效防治潛蛾濃度分別爲5%舆7.5%。

並列摘要

Citrus leaf miner, Phyllocnistis citrella Stn. (Phyllocnistidae, Lepidoptera), has been considered as the worst insect pest in citrus nursery, particularly occurred on nonfruit bearing and top grafting trees. Seven insecticides including 24% Lannate, 90% Lannate Wp, 24% Vydate L, 20% Gusathion EC, 60% Azodrin S, 27.4% Bidrin S, and 50% Monitor S. were applied by spraying and painting method to evaluate the effectiveness of the miner control. Spraying Lannate and Vydate at 0.025-0.05% concentrations, or painting on the trunk of young tree at 5.0-10% concentrations had achieved the most effective control. But the spraying method usually caused the outbreak of citrus red mite, Pannonychus citri (McG.) in order that the mite control was required.
The proper time of application for insecticide painted must be started at the new bud appearance and then repeated 2 or 3 times with a 7 to 10 days interval. The effective control was usually obtained by painting insecticides on the trunk about 3 to 4 times as long as the trunk diameter. Painting of Azodrin and Bidrin at 10% concentration often induced phytoxicity such as bud drop, young leaf deformation and tree growing retardation. Therefore, the authors would suggest that the minimum effective concentration of Lannate and Vydate for painting are 5% and 7.5% respectively.