中国森林病虫
中國森林病蟲
중국삼림병충
FOREST PEST AND DISEASE
2001年
2期
21-23
,共3页
种群消长指数%松墨天牛%松材线虫病
種群消長指數%鬆墨天牛%鬆材線蟲病
충군소장지수%송묵천우%송재선충병
在松墨天牛Monochamus alternatus 1年1代地区，该虫单雌产卵量约100粒，卵、初龄幼虫、老龄幼虫至成虫羽化脱孔、成虫羽化至产卵在松材线虫病林内的存活率分别为90%、48.34%、71.99%和85.71%，雌雄性比是1.14∶1，因而该虫的种群消长趋势指数是14.3。
在鬆墨天牛Monochamus alternatus 1年1代地區，該蟲單雌產卵量約100粒，卵、初齡幼蟲、老齡幼蟲至成蟲羽化脫孔、成蟲羽化至產卵在鬆材線蟲病林內的存活率分彆為90%、48.34%、71.99%和85.71%，雌雄性比是1.14∶1，因而該蟲的種群消長趨勢指數是14.3。
재송묵천우Monochamus alternatus 1년1대지구，해충단자산란량약100립，란、초령유충、노령유충지성충우화탈공、성충우화지산란재송재선충병림내적존활솔분별위90%、48.34%、71.99%화85.71%，자웅성비시1.14∶1，인이해충적충군소장추세지수시14.3。
In the area where Monochamus alternatus has one generation a year,the fecundity is about one hundred eggs per female.In pine wilt disease forest, the survival rates of eggs,initial instar larvae,the periods from mature larvae to adults out of emergence holes and from emergence to oviposition are 90%,48.34%,71.99%,85.71% respectively． Thus,fluctuation index of Monochamus alternatus population is 14.3.The quantity of the insect shall increase 14.3 times every year.
