【摘要】 通过性信息素活性反应,形态鉴定和生殖隔离试验等方面研究,澄清了河北省玉米螟优势种是亚洲玉米螟Ostrinia furnacalis(Guenee),而不是过去多年认为的欧洲玉米螟O.nubilalis(Hubner)。但欧洲玉米螟亦有少量分布,在张家口和芦台以大麻、苍耳、葎草等为主要寄主。此外尚见2个近缘种,其中紫玉米螟O.scapulalis(Warker)在芦台是取食葎草的主要虫种;克什米尔玉米螟,O.kasmirica(Moore)系中国新记录,仅寄生于大蓟。更多还原

【Abstract】 From 1979 to 1982, detailed studies on field experiments on the response ofmales to pheromones of different origins, morphological identification and hybridization ex-periments on the moths of different zones or different host plants, in order to clarify thedominant species of corn borer and its sibling species in Hebei province. Conclusions defi-nitely indicated that the dominant species in Hebei China is the Asian corn borer Ostriniafurnacalis (Guenee) (ACB), other than the European corn borer Ostrinia nubilalis (Hub-ner) (ECB), as has been mistaken for several decades. The ACB distributes the wholeprovince, and mainly infests corn, millet and sorghum as a key pest. Besides, three siblingspecies also occurs in Hebei province, among which the ECB mainly infests hemp, siberiancocklebur (Xanthium sibiricum), scandent hop (Humulus scanoleus) and knotweed inZhangjiakou and Lutai; the purple corn borer Ostrinia scapulalis (Warker) is dominant ofinfests scandent hop in Lutai which also infests hemp in Zhangjiakou and siberian cockleburin Lutai; the kashmir corn borer Ostrinia kasmirica (Moore) only infests thistle (Cepha-lanoplos setosum) in Zhangjiakou and Jinghai, and it is sa new record from China. The sizeof population of the three sibling species and their economic importance is so evident minor soACB.更多还原