The percentage of water from all three types of plants in each concentration vary significantly, even greater (p < 0.05).And that the concentration has a 31.25-250 ppm death rate at different plants, each kind of viewers significantly (p < 0.05).By LC 50 values are equal to the peppermint 129.32 and LC90 equals 195.10 guava. LC 50 values are equal and equivalent to 70.43 LC90 104.26 LC 50 values are equal to the eucalyptus 168.29 and LC90 equals 308.81.
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