Chili plant is economically important species. And is related to the well-being of the people of Thailand for a long time. It can be seen from the National Economic and Social Development Plan for the six years from 2530 to 2534. Specific vegetable is one of those products that have been proposed in the plan development, manufacturing, marketing and job creation. The chili is a vegetable eaten one project to promote vegetable production for export. And to develop the agricultural industry as well. Chiang Mai is approximately 26,976 acres of pepper growing areas mostly paprika. And pepper or paprika The importance of planting peppers in northern insect production cost is high. And climate The peppers are grown in the rainy season. (August And September) to be made. Production of pepper per hectare decreased. Pepper harvest may produce rotten too. Farmers sell at low prices As well as the harvesting chilies can not collect the required amount.