除草剂对星豹蛛活动行为的影响

发布时间：2018-06-07 06:00

本文选题：星豹蛛 + 活动行为　；参考：《植物保护学报》2017年02期

【摘要】：为明确除草剂对星豹蛛Pardosa astrigera活动行为的影响,采用药膜法测定乙氧氟草醚、乙羧氟草醚和百草枯3种常规除草剂对星豹蛛的毒力,应用旷野试验法研究除草剂对其活动行为的影响。结果表明:乙羧氟草醚对星豹蛛的LC10为6.75 g/L,乙氧氟草醚的LC10为1.09 g/L,3种除草剂对星豹蛛的毒力顺序为乙氧氟草醚乙羧氟草醚百草枯。高浓度(5.81~10.53 g/L)乙氧氟草醚处理后雄蛛的行走总路程和平均行走速度均较推荐浓度处理(0.07 g/L)显著降低,6.75 g/L乙羧氟草醚处理后雌蛛行走总路程较其余浓度处理显著降低、雄蛛最大行走速度较0.08 g/L浓度处理显著降低,但这2种除草剂各浓度处理均与对照无显著差异;80.00 g/L百草枯处理后雄蛛的行走总路程、最大行走速度和平均行走速度均较对照显著降低,分别为248.48 cm、12.03 cm/s和0.83 cm/s,4.00~20.00 g/L百草枯处理后雌蛛最大行走速度较80.00 g/L处理显著下降。5.81 g/L乙氧氟草醚处理后雄蛛行走区域数显著下降,较对照下降了4.57个,而雌蛛行走区域数则显著升高,较对照增加了2.20个。20.83 g/L乙羧氟草醚处理后雄蛛在中心区域停留时间最短,为0.48 s,占总时间的比例仅为0.16%,5.81 g/L乙氧氟草醚处理后雌蛛在中心区域停留时间最长,为15.94 s,占总时间的比例为5.31%。表明高浓度除草剂处理星豹蛛后对其活动行为影响显著,而推荐浓度处理后对其无显著影响,说明3种除草剂在推荐剂量下对星豹蛛相对安全。
[Abstract]:In order to determine the effect of herbicides on the activity of Pardosa astrigera, the toxicity of three conventional herbicides, ethoxyflurane, carboxyflurane and paraquat, was determined by membrane method. The effect of herbicide on the activity of herbicide was studied by field test. The results showed that the LC10 of carboxyflurane was 6.75g / L and the LC10 of ethoxyflurane was 1.09 g 路L ~ (-1) 路L ~ (-1). The order of toxicity of three herbicides was ethoxyflurane, paraquat. The total walking distance and the average walking speed of male spiders treated with ethoxyflurane were significantly lower than that of the recommended concentration treatment (0.07 g / L). The total distance of female spiders after treatment with 6.75 g / L ethoxyflurane was significantly lower than that of the other concentration treatments. The maximum walking speed of male spider was significantly lower than that of 0.08 g / L treatment, but there was no significant difference between the two herbicide concentration treatments and the control. The total walking distance of male spider was 80.00 g / L paraquat treatment. The maximum walking speed and average walking speed of female spiders were significantly lower than that of the control, which were 248.48 cm / L 12.03 cm/s and 0.83 cm / s / L paraquat treatment, respectively, and the maximum walking speed of female spiders decreased significantly after treatment with paraquat at 80.00 g / L, and the number of walking areas of male spiders decreased significantly after treatment of 5.81 g / L ethoxyflurane, respectively. Compared with the control group, the number of walking areas of female spiders decreased by 4.57, and increased by 2.20 .20.83 g / L ethoxyflurane, and the male spiders stayed in the central region for the shortest time. It was 0.48 s, the proportion of the total time was only 0.16% 5.81 g / L ethoxyflurane treatment, the female spider stayed in the central area the longest, 15.94 s, the proportion of the total time was 5.31. The results showed that the high concentration herbicide had a significant effect on the activity behavior of the spider, but the recommended concentration had no significant effect on the activity of the spider, indicating that the three herbicides were relatively safe for the spider at the recommended dose.
【作者单位】：山西农业大学农学院;
【基金】：地方高校国家级大学生创新创业训练计划项目(1541)
【分类号】：S476.2;S482.4

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