This research is a study of volatile oils from three kinds of plant extracts, eucalyptus leaf gum and Mint. To get rid of mosquito larvicide. Aedes aegyti Linn. trial found that the essential oils, plant extracts, to get rid of the ball, the water ages 3-4 is the guava and eucalyptus Mint by the concentration and 62.5/125 250 500 1000 31.25 mg l. In a period of 6, 12, 18 and 24-hour LC50 values are equal to the guava 70.43, and mint with a value equivalent to 104.26 LC90 LC50 equal to 129.32 and LC 90 equal to the LC50 values are equal to the eucalyptus 195.10 168.29 and LC90 equals 308.81 found that the oils from guava coupled with Max to eliminate mosquito larvicide. Is Mint and eucalyptus oil. In the period of 6-24 hours to get rid of the ball, has good mosquito water. Key words: plant extracts, eucalyptus gum leaves. Mint leaf
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