一、为什么要进行稻田灭蚊?人们常说:“水稻水稻,有水有稻,离水无稻”,这说明水稻的栽培离不开水。蚊虫一生中要经过卵、幼虫、蛹、成虫四个时期,除后一时期外,前三个时期均生活在水里,离水则死。水稻生长发育时期亦正是蚊虫大量繁殖期,所以 First, why do we need to carry out mosquito control in paddy fields? People often say: “Rice and rice have water and rice and water without rice,” which shows that rice can not be cultivated without water. Mosquitoes go through the eggs, larvae, pupae and adults during their lifetime. Except for the latter period, the first three periods all live in the water and the water dies. The period of rice growth and development is also a period of heavy mosquito breeding, so