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2021 Volume 34 Issue 3
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LI Pei-zheng, PAN Run-dong. Co-toxicity of Pyrazoxystrobin and Difenoconazole Against Colletotrichum gloeosporioides on Areca catechu[J]. PLANT HEALTH AND MEDICINE, 2021, (3): 26-28. doi: 10.13718/j.cnki.zwys.2021.03.005
Citation: LI Pei-zheng, PAN Run-dong. Co-toxicity of Pyrazoxystrobin and Difenoconazole Against Colletotrichum gloeosporioides on Areca catechu[J]. PLANT HEALTH AND MEDICINE, 2021, (3): 26-28. doi: 10.13718/j.cnki.zwys.2021.03.005
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Co-toxicity of Pyrazoxystrobin and Difenoconazole Against Colletotrichum gloeosporioides on Areca catechu

  • College of Plant Protection, Hainan University, Haikou 570228, China

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  • Received Date: 30/04/2021

  • MSC: S436.68

  • In order to clarify the synergistic interaction of pyraclostrobin and difenoconazole against Colletotrichum gloeosporioides,the toxicity of pyraclostrobin,difenoconazole and their mixtures at different ratios against C. gloeosporioides was determined by mycelial growth rate test. The results indicated that the EC50 of pyrazoxystrobin and difenoconazole was 1.25 mg/L and 0.83 mg/L,respectively.The CTC(co-toxicity coefficient) of pyraclostrobin:difenoconazole at 1:4,1:2,1:1,2:1 and 4:1 (mass ratio of active ingredient) against C. gloeosporioides was 107.20,128.04,146.70,124.37 and 119.49,respectively. The synergistic effect of the 1∶1 mixture was the most obvious.
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Co-toxicity of Pyrazoxystrobin and Difenoconazole Against Colletotrichum gloeosporioides on Areca catechu

  • Received Date: 30/04/2021

Abstract: In order to clarify the synergistic interaction of pyraclostrobin and difenoconazole against Colletotrichum gloeosporioides,the toxicity of pyraclostrobin,difenoconazole and their mixtures at different ratios against C. gloeosporioides was determined by mycelial growth rate test. The results indicated that the EC50 of pyrazoxystrobin and difenoconazole was 1.25 mg/L and 0.83 mg/L,respectively.The CTC(co-toxicity coefficient) of pyraclostrobin:difenoconazole at 1:4,1:2,1:1,2:1 and 4:1 (mass ratio of active ingredient) against C. gloeosporioides was 107.20,128.04,146.70,124.37 and 119.49,respectively. The synergistic effect of the 1∶1 mixture was the most obvious.

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