Canopy spray deposition and related mortality impacts of commonly used insecticides on Drosophila suzukii Matsumura (Diptera: Drosophilidae) populations in blueberry
Canopy spray deposition and related mortality impacts of commonly used insecticides on Drosophila suzukii Matsumura (Diptera: Drosophilidae) populations in blueberry
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DOI：
10.1002/ps.5672
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发表时间：
2019-12-05
影响因子：
4.1
通讯作者：
Walton, Vaughn M.
中科院分区：
文献类型：
--
作者：
Mermer, Serhan;Pfab, Ferdinand;Walton, Vaughn M.
蓝莓生产系统中的杀虫剂应用在控制铃木果蝇种群中起着至关重要的作用。在这里，定量喷雾沉积模式下得到的蓝莓在两个领域的季节与三个喷雾器，即加农炮，静电，空气鼓风机复制的田间试验。试验了7种杀虫剂（在6小时时使用Potter喷雾塔），以确定成虫的死亡率数据。铃木。成虫的喷雾沉积和死亡率数据。Suzukii被用于创建昆虫种群的模型模拟。模型模拟包括喷雾器的田间沉积率和杀虫剂死亡率作为因素。模拟以不同的组合应用，在6周的时间内应用5次。结果：炮式喷雾器的相对沉积速率在树冠上部区域升高，而鼓风式喷雾器的沉积速率在树冠下部区域更高。静电喷雾沉积是比较均匀的六个冠层区域。在D.发现Suzukii实验室死亡率从最低到最高分别为灭多威、乙基多杀菌素、多杀菌素、马拉硫磷、氰虫苯甲酰胺、高效氯氰菊酯和灭多威。最大D。如模型输出所示，使用气流喷雾器和顺式氯氰菊酯观察到了铃木种群的影响。结论静电喷雾器的冠层沉积量最小，气流喷雾器的冠层沉积量最大。这项研究提供了新的假设，可用于现场验证这些喷雾技术和杀虫剂的关键因素。(c)2019化学工业协会
BACKGROUND Insecticide applications in blueberry production systems play a crucial role in the control of Drosophila suzukii populations. Here, quantitative spray deposition patterns were obtained under replicated field experiments in blueberry during two field seasons with three sprayers, i.e. cannon, electrostatic, and air-blast. Seven insecticides were tested (at 6 hours using a Potter spray tower) to determine the mortality data for adult D. suzukii. Spray deposition and mortality data for adult D. suzukii were used to create model simulations for insect populations. Model simulations included field deposition rates of sprayers and insecticide mortality as factors. Simulations were applied in different combinations with five applications over a 6-week period. RESULTS Relative deposition rates for the cannon sprayer were elevated in the upper zones of the canopy, whereas for the air-blast sprayer, deposition was greater in the bottom zones. Electrostatic spray deposition was relatively uniform within the six canopy zones. Clear trends in D. suzukii laboratory mortality were found with lowest to highest mortality recorded for phosmet, spinetoram, spinosad, malathion, cyantraniliprole, zeta-cypermethrin, and methomyl respectively. Maximum D. suzukii population impacts, as shown by model outputs, were observed with air-blast sprayers together with zeta-cypermethrin. CONCLUSION The electrostatic sprayer had the least variable canopy deposition among the three types of spray equipment, and the air-blast sprayer had the highest overall deposition rates. This study provides new hypotheses that can be used for field verification with these spray technologies and insecticides as key factors. (c) 2019 Society of Chemical Industry