稻蓟马体小繁殖快,一年可发生十多代,世代重迭,其中以5月中旬至7月上旬间的三、四、五代危害杂交稻制种田最重。我县杂交稻制种多在5月中旬播种,正值稻蓟马繁殖危害的始盛期,父本秧苗2—3叶期就遭受稻蓟马的危害。受害的秧苗素质差,长势不旺;栽插后影响早发,分蘖降低。导致后期没有足够的花粉,甚至花期相遇受影响。以往用常规的喷药方法防治稻蓟马,常因某种因素而错失良机,浪费了人 Thrips tabaci small reproduction fast, can occur more than a generation a generation, generational overlap, including mid-May to early July between the three, four, five generations of hybrid rice damage to farming the most. The rice hybrids in our county were mostly sown in mid-May, which coincided with the beginning of the thrips, and the thrips of rice thrips were harmed at the 2-3-leaf stage of the male parent. Impacted seedlings of poor quality, growth is not flourishing; planted early affect the onset, reduce tillers. Resulting in not enough pollen late, or even flowering affected. In the past with conventional spraying methods to prevent thrips, often due to a factor missed the opportunity, a waste of people