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 types include pachyrrhizin, pachyrrhizone, 12 (A)-hydroxypachyrrhizone-dehydropachyrrhizone, dolineone, erosenone,, neodehydrorautenone,, 12 erosin-(A)-hydro.Xylineonone, 12-(A)-hydroxymundu-serone, rotenone also contains saponin, pachysaponins A and B, which include water soluble and toxic to fish, the fish die. Extracts from seeds, jicama-acting insecticide in multiple formats, such as substances, pesticides, etc. to allow farmers to reduce the use of chemicals in agricultural and jicama seeds extracts come to prevention and elimination of insect pests, so people are prepared to experiment with seeds jicama come check.Flavored bites by using three kinds of solvents, ethanol, hexane and water. Jicama seeds extract found to soak in solvent hexane active removal of caterpillars feeding on the leaves are better than other solvent by eliminating worms eat. 100% at 20, 30, 40 minutes, respectively, while that of ethanol and water to get rid of caterpillars feeding on the leaves, has 100% at 30, at 40 minutes, the drug kills worms recycle Roma cuisine. Make a worm eats the leaves die within 24 hours.
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