福建果树新害虫——桃小食心虫的研究

STUDIES ON THE BIONOMICS OF PEACH FRUIT BORER,A NEW ORCHARD PEST IN FUJIAN PROVINCE

1987年福建首次发现桃小食心虫(Carposinasa sakii Matsumura)严重蛀害李果,是福建果树害虫新记录。1990—1993年的研究表明,该虫在福建水泰李产区1年主要发生1代,以老熟幼虫在土中结冬茧越冬。卵期7.7天;幼虫期长达10个月左右;蛹期13.4天;雌蛾产卵前期4.6天,产卵量81.2粒,雌蛾寿命11.4天,雄蛾9.7天。4月中旬为越冬幼虫出土盛期。4月下旬至5月上旬为成虫羽化盛期。5月上中旬为第一代幼虫孵化蛀果盛期。第一代少数在浅土结夏茧并羽化成虫产卵。

In 1987, serious damage of peach fruit borer Carposina sasakii Matsumura on plum fruits was found in Fujian Province for the first time, it was a new record of orchard pest in this province. A series of studies on its bionomics, including life history, overwintering behavior, developmental durations of immature stages, longevity of adults, peak periods of larvae out of ground, emergence of adults and hatching and fruit boring of 1st generation larvae, etc. , were investigated in 1990 - 1993 in Yongtai County, Fujian Province.