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为了能更好地建立实验室种群,对沟眶象(Eucryptorrhynchus chinensis Olivier)成虫取食不同材料(臭椿萌生苗、2~3年生臭椿枝条、苹果切块、10%蜂蜜水、清水)条件下的雌虫产卵前期、雌虫产卵量、卵孵化率等繁殖力指标进行了测定。结果表明:沟眶象成虫出土后需要补充营养才可以产下可育卵,饲喂清水时可以产下极少量卵,但无法孵化。沟眶象取食臭椿萌生苗、2~3年生枝条时繁殖力较大,其产卵总量和孵化率分别为93~152粒、74.60%和101~156粒、68.42%,极显著高于取食苹果和蜂蜜水的处理(分别为13~49粒、41.67%和2~36粒、15.83%)。因此,室内以臭椿萌生苗和2~3年生枝条饲养沟眶象成虫,野外则可以萌生苗诱集和灭杀成虫。
In order to better establish the laboratory population, the adults of Eucryptorrhynchus chinensis Olivier were fed with different materials (sprouting seedlings of Ailanthus altissima, 2 to 3 years old stinkbill, cut apple slices, 10% honey water and clear water) Female pre-oviposition, female fecundity, egg hatch rate and other reproductive indicators were measured. The results showed that the fertilized eggs could be produced after the adult orbital adults had been excavated. Few eggs could be produced when they were fed with water but could not hatch. Gourd orbital feeding on stinkbug seedlings, 2 to 3 years old branches larger reproductive capacity, the total amount of eggs and hatching rate of 93 to 152, 74.60% and 101 ~ 156, 68.42%, extremely significantly higher than Feeding apple and honey water treatment (13 ~ 49, 41.67% and 2 ~ 36, 15.83% respectively). Therefore, indoors with stinkbug sprout and 2-3 years old branches ditch orbital adult, you can sprout seedlings in the wild to trap and kill adults.