亚热带农业研究2025，Vol.21Issue(1)：59-65,7.DOI:10.13321/j.cnki.subtrop.agric.res.2025.01.009
福州地区灰纹带蛾的生物学特性
Biological characteristics of Ganisa cyanugrisea Mell in Fuzhou
摘要
Abstract
[Purpose]Ganisa cyanugrisea Mell is a major defoliator attacking Ligustrum spp.Understanding its life cycle,habits,and feeding behavior is essential for effective prevention and control.[Method]A combination of indoor rearing and field observa-tion was employed to study the morphological changes and developmental processes of G.cyanugrisea during different stages.Dyar′s law and indoor rearing observation were employed to determine the larval instars.[Result]The moths of G.cyanugrisea are grey-brown or yellowish-brown,with females displaying darker body color and larger body size.Their forewings are distinctly marked by two parallel black submarginal lines extending from the inner margin of the apical angle to the posterior edge.The larvae exhibit an increasing number of setae and a deepening body color(from yellow to dark)as they develop.The head capsule width,body width,and body length increase significantly as the larvae develop,and head capsule width,in particular,serves as a reliable indicator for identifying larval instars.The larvae have seven instars when being reared at(25±1)℃,needing(98.67±11.70)days to complete one generation.[Conclusion]G.cyanugrisea appear from March to May and from September to October in Fuzhou,and thus it is hypothesized that it can complete at least two generations within a year.However,because of the large difference in developmental duration among individuals,it probably completes three generations.It is rational to identify the larval instar based on head capsule width.It can be controlled by artificial annihilation of pupae and eggs,light trapping,spraying microbial and chemical insecticides,and application of natural enemies.关键词
灰纹带蛾/形态学特征/生物学特性/头壳宽度Key words
Ganisa cyanugrisea Mell/morphological characteristics/biological characteristics/head capsule width分类
生物学引用本文复制引用
张珠河..福州地区灰纹带蛾的生物学特性[J].亚热带农业研究,2025,21(1):59-65,7.基金项目
福州市林业科技研究项目"福州地区杉肤小蠹生物学特性及综合防治研究"(2023RLKY01). （2023RLKY01）
