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2023 Volume 2 Issue 4
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HU Yue, TIAN Lichao, HU Chong, et al. Study on the Control Effect of 4 Kinds of Insecticides on Asterococcus muratae Kuwana[J]. PLANT HEALTH AND MEDICINE, 2023, (4): 53-59. doi: 10.13718/j.cnki.zwyx.2023.04.007
Citation: HU Yue, TIAN Lichao, HU Chong, et al. Study on the Control Effect of 4 Kinds of Insecticides on Asterococcus muratae Kuwana[J]. PLANT HEALTH AND MEDICINE, 2023, (4): 53-59. doi: 10.13718/j.cnki.zwyx.2023.04.007
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Study on the Control Effect of 4 Kinds of Insecticides on Asterococcus muratae Kuwana

  • 1. Chongqing Landscape and Gardening Research Institute, Chongqing 401329, China;

  • 2. Chongqing Key Laboratory of Innovation and Utilization of Native Plant Germplasm in Sichuan and Chongqing, Chongqing 401329, China

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  • Received Date: 21/06/2023

  • MSC: S433

  • In order to screen the effective control agents of Asterococcus muratae Kuwana, the virulence of four kinds of pesticides to newly hatched nymphs of Asterococcus muratae Kuwana was determined by glass slide dipping method and centrifuge tube film method, and the outdoor control effect was determined by spray test. The results showed that the order of toxicity of the four reagents determined by glass slide dipping method was 25% thiazone WP, 2% amamectin benzoate EC, 22.4% spirotethyl SC and 99% mineral oil EC, with LC50 of 39.87 mg/L, 56.99 mg/L, 722.27 mg/L and 2 223.51 mg/L, respectively. The order of toxicity determined by centrifuge tube film method was 25% thiazinone WP, 2% amamectin benzoate EC, 99% mineral oil EC and 22.4% Spirotethyl SC, with LC50 of 20.48 mg/L, 193.76 mg/L, 2 865.86 mg/L and 6 235.52 mg/L, respectively. The outdoor efficacy test showed that 56 days after application, the control effect of 1 000 times dilution of 25% thiazinone WP could reach 100%. The dead insects showed red black body without molting shell. The control efficiency of 200-fold solution of 99% mineral oil EC, 2 000-fold solution of 22.4% spirulina ethyl ester SC and 1 000-fold solution of 2% amamectin benzoate EC was only 3.28%~15.45%. In conclusion, 25% thiazinone WP has the highest virulent effect and excellent control effect on the initial hatchling nymphs of Asterococcus muratae Kuwana, which is suitable for the control of this pest in garden plant.
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Study on the Control Effect of 4 Kinds of Insecticides on Asterococcus muratae Kuwana

  • Received Date: 21/06/2023

Abstract: In order to screen the effective control agents of Asterococcus muratae Kuwana, the virulence of four kinds of pesticides to newly hatched nymphs of Asterococcus muratae Kuwana was determined by glass slide dipping method and centrifuge tube film method, and the outdoor control effect was determined by spray test. The results showed that the order of toxicity of the four reagents determined by glass slide dipping method was 25% thiazone WP, 2% amamectin benzoate EC, 22.4% spirotethyl SC and 99% mineral oil EC, with LC50 of 39.87 mg/L, 56.99 mg/L, 722.27 mg/L and 2 223.51 mg/L, respectively. The order of toxicity determined by centrifuge tube film method was 25% thiazinone WP, 2% amamectin benzoate EC, 99% mineral oil EC and 22.4% Spirotethyl SC, with LC50 of 20.48 mg/L, 193.76 mg/L, 2 865.86 mg/L and 6 235.52 mg/L, respectively. The outdoor efficacy test showed that 56 days after application, the control effect of 1 000 times dilution of 25% thiazinone WP could reach 100%. The dead insects showed red black body without molting shell. The control efficiency of 200-fold solution of 99% mineral oil EC, 2 000-fold solution of 22.4% spirulina ethyl ester SC and 1 000-fold solution of 2% amamectin benzoate EC was only 3.28%~15.45%. In conclusion, 25% thiazinone WP has the highest virulent effect and excellent control effect on the initial hatchling nymphs of Asterococcus muratae Kuwana, which is suitable for the control of this pest in garden plant.

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