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深绿异丽金龟子Anomala heydeni Frivaldszky在浙江宁波浙贝母产区一年发生一代,以第三龄幼虫在土中越冬。次年3月中旬取食贝母鳞茎。4月底开始于15厘米以下土层中作室化蛹。7月上旬为成虫羽化高峰,4～5天后为产卵高峰,7月底为孵化高峰。第一、二龄幼虫咬食贝母鳞茎和须根。 用90％晶体敌百虫每亩0.5公斤或50％辛硫磷乳油每亩0.4公斤,兑水泼浇,防治第一龄末期幼虫,效果在90％以上。用50％辛硫磷乳油每亩0.75公斤,防治第三龄幼虫,可使贝母增产13％。掌握在第一龄幼虫期施药,是防治关键。
Anomala heydeni Frivaldszky occurs a year in the Zhejiang Fritillaria area of Zhejiang province, overwintering in the soil with third instar larvae. The following year in mid March to eat the Fritillaria bulb. The end of April began in the 15 cm below the soil in the studio pupation. Early July adult emergence peak, 4 to 5 days after the spawning peak, by the end of July for the incubation peak. The first and second instar larvae bite Fritillaria bulbs and fibrous roots. With 90% crystal trichlorfon 0.5 kg per acre or 50% phoxim 0.4 kg per acre, pouring water pouring, prevention and control of the first instar larvae, the effect of more than 90%. With 50% phoxim EC 0.75 kg per mu, control of third instar larvae, can increase the yield of Fritillaria 13%. Grasp the first instar larvae spraying, is the key to prevention and treatment.