Origin and importance. Today, farmers use pesticides to kill insects in order to prevent the enemy in pest control. Many rice because it works fast and is easy to buy each type of insect killing substance which would have the effect, or be harmful to living organisms and the environment, but are different. It also affects a variety of ecosystems in the rice field again. Suwat (2545 (2002)) report that they use the substance fipronil, a chemical pesticide to kill the best kit and zoology research and Development Department of agriculture plants, crop protection, it is recommended that you use to prevent removal of the worm steamed rice. Result, the diversity of insects in the paddy fields lower. Convert does not use substances to 17.6% in 7.3-the reality of ecological farming in rice field consists of a. Many kinds of fancy creatures Natural enemy insect enemies, especially the rice, including more than 100 types of predator and tuabian, which is more than 5-6 times the enemy insect rice (intuition and faculty, 2545 (2002)) using the substance to kill insects that are valid. In addition, there will be a good performance and safety, the environment, and do not cause adverse effects as well as subsequent. Use of the substance to kill insects that are not properly balanced ecosystems may cause, such as the use of pesticides to kill the insects, synthetic fiber mechanical thonaya some collapse make 71 Brown planthopper outbreaks increases (resurgence) and the quantity of natural enemy spiders. In a rice field with reduced (Tanaka et al, intuition; 2545 (2002)., 2000), or even an insect killing substance that suggests that. Used in the rice field, it might affect the natural enemies of a certain type of Preetha. (2009) reported that the substance does not privilege Izumi's background there tire master tie master e-rok and fanep Sam b PMC is a substance that is harmful to the wasps Trichogramma chilonis records so. To use the substance against enemies, rice optimum should be selected in consideration of performance and affect the least amount of ecosystem. In addition to using the substance to kill insects, also there are other ways that can prevent or eliminate enemies such as rice. Fungi-wawoe bikini to control leafhoppers, aphids, mealy bugs, and Brown planthopper, green found that making a full. Ages of these insects and diseases respectively, 58.75% 62.50 (diamond, hathai, 2550 (2007)) advantages of fungi. So, for example, there are no toxic residues are safe: Environment, etc, but there is a limit, for example, take the time to. Disease with insects for several days (up to 3-7 days). ongasai the appropriate environment, etc. (2547 (2004), hathai diamonds) Moreover, there are other ways, such as using biological fermentation of juice, which is currently available in a trade, to provide a more convenient. The benefits of water biological fermentation, such as help for the growth of plant disease and insect resistance to etc. (free software and PIN, 2547 (2004)) However, when the enemy of rice. Insect killing pesticides, it is also necessary so that. Study on the effects of using chemicals to kill the insects, it is important and necessary information, farmers can choose to use pesticides to kill insects that are appropriate. This study has the objective to study the effects of the substance suggest that rice and defeat the enemy defense against natural enemies in rice fields.
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