Lemon is one of the economically important plants in the market and is considered a type of pest damage the lemon tree is very simple. Jicama plant is an important economic district of Maha sarakham borabue, Chang WAT from the study found that in the seeds, jicama found to be coupled with a pesticide. Passengers are to come experiment with jicama seeds extraction, using solvent 3 kinds of ethanol, hexane and water. The study found that ethanol can be extracted from the seeds, jicama. 3.1858 g, representing 6.3716% of hexane extraction of jicama seeds can be obtained from the 7.6609 g 15.3218% representing water and unable to extract from the seed of a jicama. Therefore, a suitable solvent that is used in the extraction of substances from seeds, jicama is hexane and testing to get rid of caterpillars eat the leaves of the extract from the seeds, jicama. Jicama seeds extract found to soak in solvent hexane active removal of caterpillars feeding on the leaves are better than other types of solvents. Using the mean time all 10.5 minutes.
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