摘要
山西省不同生态区亚洲玉米螟和粟灰螟的地理分布规律受寄主作物、海拔高度和无霜期的影响。海拔１５００ｍ，无霜期１００天以下的内长城以北的高寒山区，为不发生区；海拔１０００～１５００ｍ以上，无霜期１２０天左右的地区，为１代发生区；地处北纬３８．５°～３６°的平川盆地，无霜期１５０天左右，为１～２代和２代发生区；北纬３６°以南的大部分地区，海拔较低，无霜期较长，一年两作区，为２～３代发生为害区；３代发生区极少，一般在北纬３６°以南地区。防治对策是：抓好大同、晋中、晋南盆地玉米螟的防治和忻定、吕梁山区、上党盆地粟灰螟的防治。防治措施以化学防治为主，辅之以农业和生物防治。
in this paper the distribution,generation,damage and control of two borers (Asia maize borer,Ostrinia furnacalis.Yelllow sugarcane borer,Chilotraea in fuscatella),Were mainly approached from different ecological range and drawn on entomological information and violet light.Studies shows that there were 5 ecological distribution ranges in Shanxi province.First is no generation range in high frigid mountain with an elevation of 1500 metres,which's frostfree period is less than.100 days.Second is one generation range in lower 1400 metres above sealevel,which's frost-free period 100 days or so.Third is one to two and two generation range,thirty-seven to thirty-nine degres north latitude,which's frost-free period 150 days.Fourth is thirty-seven degrees north latitude beyond south,two to three generations range.Fifth is three generations range,thirty-five degrees north latitude beyond south.Among the most of ranges, damage factor is light.Up to 1300 metres above sea level mountains,C infuscatella was damaged seriously,whereas O.furnacalis in plain.The chemical control are mainly measure and agricultural and biological control are complementaried.
出处
《山西农业科学》
1995年第2期45-48,共4页
Journal of Shanxi Agricultural Sciences
