【摘要】 1.铜绿金龟子属鞘翅目、金龟子总科、丽金龟子科Rutelidae,学名Anomala corpulentaMotschulsky。 2.此虫在安徽各地几乎皆有分布。合肥地区主要以成虫为害苹果、枫杨、白杨等树树叶,损害猛烈,每年必须加以防治,否则将被倾食一光,影响生长、减少果产。 3.铜绿金龟子一年发生一代,以幼虫越冬。次年5月上中旬开始化蛹。成虫盛发期在6月中旬,但前后延绵近3月之久。孵化的幼虫经2次脱皮,于9月生长成3龄,即以3龄幼虫潜伏于表土下6寸左右深处过冬。 4.成虫白天潜伏于表土内,傍晚太阳下山开始活动,7时半左右光线减弱至60米烛光以下便飞往寄主上交尾,交尾时间长达半小时。8时以后开始取食,直至黎明4时半方才飞回土中,日出时已绝迹。成虫寿命很长,可活一个多月。一生交尾多次。卵分期产出,散产于表土6厘米上下深处。每一雌虫一生可产卵50—60枚。成虫有伪死性,晚8时10分以后交尾活动已过,开始有趋向灯火的习性。 5.卵期一般为9天多,孵化过程中有吸水膨大的现象,胚胎发育与土壤湿度有密切关系,在土壤含水量10％—30％之间可以正常生长,低于10％便干瘪而死,高于30％终会腐烂,但是干燥致使卵壳瘪凹没有超过一半时,如遇适宜环境仍可恢复生长,在水中浸泡5昼夜捞起之卵仍然可以孵出幼虫,甚至浸上22天少数还没有死去。卵?更多还原

【Abstract】 Anomala corpulenta Motschulsky is an important insect pest of Malus prunifota,Pterocaryastenoptera, etc. in Anhwei. The adult infests the leaf, causing a considerable damage to the plant. The life cycle of this scarabaeid requires 1 year for its completion. The larvae overwinter.The larval period lasto as much as 310 days. The eggs hatch in 9 days. The length of the pupalstage is 10 days. The life of the adult is about 37 days for the female and 30 days for the male.The adults appear mostly in June. The adult beetles become active when the light is lower than 60 lux at 7:30 at night, theyleave the soil and go to host plant. The act of mating takes place from 7:30 to 8:00. As arule, the copulation time is about 30 minutes. After copulation, both the male and the femalestart feeding on the leaf, and then retire to the soil at dawn.From 2 to 3 days after mating, thefemale beetle begins to oviposit. A maximum of 82, and a minimum of 22, with an average of50--60 eggs, are laid in the soil about 6 cm. below the surface. Experiment in which 350 eggs were reared in the soil of various water contents: 0, 5%, 10%,15%, 20%, 25%, 30%, 35% and 40%, showed that the soil water content ranging from 10%to 30% seems to be the most suitable for egg hatching, higher or lower than 30% or 10%. Theegg will decay or become desiccated. The larvae search food 7 cm. below the surface. Feeding continues throughout the season ofthe first year to November, when they burrow deeply into the ground from 15 to 21 cm forhibernation. In the next spring, they come up again to the surface at the end of March and con-tinue to feed upon the roots, causing severe damages. The larval stage possesses three instares.The mature larvae work their way down, and form oval-shaped pupual chambers at a depth from10.2 cm to 22.5 cm. Results of the field experiments for the control of this scarabaeid with DDT, 666, E605 andE1059, indicated that spraying with 25% DDT emulsion on the foliage was most effective incontrolling the adult beettls. Supplementary measures are: hand collecting, light trapping, andsmoking.更多还原