【摘要】 本工作于1962年底开始在武昌华中农学院农场内进行,主要探索药剂防治、田园清洁、轮作方法和选择抗虫品种等途径来防治蚕豆象。初步试验表明:用5ppm灵丹粉拌种防治成虫的效果很好,但对豆粒内的幼虫及蛹的毒杀效果都很小。使用磷化铝熏蒸,每200斤蚕豆用药一片(3克),可杀死全部成虫、幼虫及蛹,且不致影响蚕豆的发芽。室内试验,用1:150的6％可湿性666杀卵,效果可达83.3％;大田喷药以在蚕豆花期和荚期各喷一交1％的666粉的效果最好,可将虫蚀率压低到0.1％。据调查,在收割时田间和晒场以及豆秸上都残留着一些有虫豆,是野外的越冬虫源,必须注意田园清洁。蚕豆象每年发生一代,成虫寿命不超过一年,目前只发现为害蚕豆,且只能在田间新鲜蚕豆上繁殖,故有可能采用轮作方法达到彻底消灭蚕豆象的目的。发现大粒和褐绿色皮的蚕豆品种,比小粒和绿黄色皮的蚕豆品种能抗虫,值得进一步研究。更多还原

【Abstract】 It is well-known that the broad-bean weevil, Bruchus rufimanus Boheman, is a seriousinsect pest infesting the broad-beans in this country. This weevil can only complete onegeneration each year and overwinters in the adult stage. It has been shown by our ex-periments that adult weevils can be completely controlled by mixing the infested broad-beans with 5 p.p.m. of lindane dust, while such a kind of treatment has failed to kill bothlarvae and pupae in seed beans. Complete kill can be obtained when the infested broad-beans are fumigated with phostoxin at a dosage of three grams to 200 catties of beans.It is proposed that bean vines and other rufuse, and infested beans, left both in the fieldand on the sunning ground should be cleaned out, plowed under, converted into manure,or burned in order to destroy many wintering weevils out of doors. During both flower-ing and podding stages of the bean plants, dusting with 1% 666 powder in the field ata dosage of 2.5 catties per mow can give better control. Owing to the broad-bean weevilsprefering only to attack the broad-beans in the vicinity of Wuchang, therefore, broad-beanand pea rotation in this region may be very effective to control these pests, and probablypea weevil, Bruchus pisorum L. It has also been shown that the "javel-green"-coloredbroad-beans of larger size are more or less resistant to the weevil’s attack than those"greenish-yellow"-colored varieties of smaller size.更多还原