| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a self-propelled pest control machine in which preferably the application amount of chemical fluid is changed depending on the kind of crop to be sprayed, a first nozzle having a small spray particle diameter is used for common crops such as paddy rice, a second nozzle a having large spray particle diameter is required for high crops since a control effect is not obtained if a chemical fluid is not securely sprayed and spraying is easily carried out using the second nozzle in high crops. Ž<P>SOLUTION: In the self-propelled pest control machine equipped with a chemical fluid spray apparatus for spraying a chemical fluid on crops in a field while self-traveling, the self-propelled pest control machine has a constitution that right and left spray side booms equipped with the first nozzle and a first spray hose are arranged on both right and left sides of the machine body and a second spray hose having the second nozzle with the spray particle diameter different from that of the first nozzle is disposed in parallel with a boom lance constituting the spray side booms. Ž<P>COPYRIGHT: (C)2010,JPO&INPIT Ž
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