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水稻普通矮缩病近年来在云南中北部十多个市、县危害严重,对稻谷生产带来很大威胁,成为生产上迫切要求解决的课题。为了寻求经济有效的控制措施,作者从1973年开始对传毒介体黑尾叶蝉的传毒特性、生活史、病害发生一般规律以及药剂治虫防病等进行了初步研究,现将主要结果,报导如下。黑尾叶蝉的传毒特性用1—2龄无毒若虫,在新鲜普通矮缩病株上饲毒48小时,饲毒后第一天即开始进行单虫单苗传毒测定,逐日换苗,直至死亡。供试品种为“373”(为高感品种),秧苗均为三叶期。传毒后的秧苗,编号移植在有防虫设备的水泥池内,观察记载发
In recent years, ordinary rice dwarf diseases have been seriously endangered in more than a dozen cities and counties in central and northern Yunnan, posing a great threat to paddy production and have become an urgent task in production. In order to seek economical and effective control measures, the author carried out a preliminary study on the transmission characteristics, life history, general rules of disease and pesticide prevention and control of the poisonous vector Nephotettix cincticepsis from 1973. Now the main results, Reported as follows. Transmission characteristics of black-tailed leafhopper with 1-2 non-toxic nymphs, fresh ordinary dwarfing strain on the poison for 48 hours, the first day after feeding began to single-seedling single seedling toxicity determination, daily change seedlings Until death. Test varieties for the “373” (for the highly susceptible varieties), seedlings are clover period. After the poisoning of the seedlings, the number of transplanted in a pest control equipment, cement pool, observe the recorded hair