Effect of Four Igr's Against the Potato Tuberworm, 1991

V. M. Sanchez-Valdes, E. Guerrero-Rodríguez, M. A. Lievano-Chirino
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引用次数: 0

Abstract

The response of potato tuberworm to ten doses of acyl-urea, diflubenzuron and triflumuron was evaluated in a series decreasing in halfs (e.g. 2,000, 1,000, 500 ppm, etc.). Potato tubers were submerged in the desired concentrations, put on paper to dry and then placed in one liter plastic containers. Over each tuber, 10 larvae were placed per replication, with four replicates/dose (40 larvae), and a total of 400 larvae per insecticide trial was used. A water-treated check was used. Larvae were obtained from Navidad, Nuevo Leon, Mexico and were maintained 30 d at 25 ± 2°C. Two samples at 10 and 15 d post-treatment were made to check mortality, and at 30 d for adult survival. The final analysis was based on adults because differences in mortality among stages was low. The mortality data were analyzed by probits to obtain LC50 and LC95 values for each insecticide.
4种Igr对马铃薯薯类结核杆菌的防治效果,1991
马铃薯结核菌对十剂酰基脲、二氟苯脲和三氟脲的反应进行了一系列评估,剂量减少一半(例如,2000、1000、500 ppm等)。马铃薯块茎浸入所需的浓度,放在纸上晾干,然后放在一升的塑料容器中。在每个块茎上,每重复放置10只幼虫,每剂量4次重复(40只幼虫),每次杀虫剂试验共400只幼虫。采用水处理止回阀。幼虫产自墨西哥新莱昂州的Navidad,在25±2°C下保存30 d。在治疗后10天和15天分别采集两个样本以检查死亡率,并在30天检测成人存活率。最后的分析是基于成年人的,因为不同阶段的死亡率差异很低。采用probits法对死亡数据进行分析,得到各杀虫剂的LC50和LC95值。
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