论文部分内容阅读
寄生蜂是稻田害虫的重要天敌类群,对某些害虫具有经常、持久的控制能力,起着调节害虫种群数量的作用。近年来不少省和地区,通过天敌资源调查,已初步整理出本地区的稻田寄生蜂名录,在寄生蜂的保护利用上也取得了一些成绩。但是,由于我国稻区辽阔,气候复杂,耕作制度、稻型差异很大,稻田昆虫区系和发生特点不同,所以立足本地,逐步摸清稻田寄生蜂资源、发生情况及其对害虫的自然控制作用,与开展害虫生物防治提供依据,仍是一个重要的课题。
Parasitic wasps are important natural enemies of pests in rice fields. They have regular and long-lasting control over certain pests and play a role in regulating the population of pests. In recent years, many provinces and regions, through the investigation of natural enemy resources, have initially sorted out the list of parasitoids in paddy fields in the region and also made some achievements in the protection and utilization of parasitoids. However, due to the vast rice area in our country, the complicated climate, the tillage system and the rice variety, the faunal and occurrence characteristics of the rice fields are different. Therefore, based on the local conditions, the resources and occurrence of parasitoids in rice fields and their natural control over pests Role and to provide basis for pest biological control, is still an important issue.