title: Temperature effects on development and fecundity of Brachmia macroscopa (Lepidoptera: Gelechiidae).
abstract: The current study investigated the impacts of temperature on the development and reproductivity of the sweet potato leaf folder, Brachmia macroscopa (Lepidoptera: Gelechiidae), in sweet potato leaves under laboratory conditions. We determined developmental time of B. macroscopa larval, pupal, and pre-adult stage at different temperatures. Male and female longevity, male and female lifespan, mortality of immature stages, oviposition period of B. macroscopa were also investigated under six constant temperatures (21°C, 24°C, 27°C, 30°C, 33°C, 36°C), based on age-stage, two-sex life tables. The results revealed that eggs in 36°C were unable to hatch. At temperatures between 21°C -33°C, the duration of the pre-adult period, as well as the adult lifespan both for males and females, were shortened by increasing temperatures. The lowest larval mortality rate (15.33%) occurred at 27°C. The age-stage-specific fecundity rates with the greatest number were, in order, 30°C, 27°C, 21°C, 24°C and 33°C. The results show that B. macroscopa population levels could reach highest at the temperature of 27℃.
authors.affiliation: Hunan Provincial Key Laboratory for Biology and Control of Plant Diseases and Insect Pests, Changsha, China.|College of Plant Protection, Hunan Agricultural University, Changsha, China.
authors.forename: Li
authors.initials: L
authors.lastname: Ma
authors.affiliation: Hunan Provincial Key Laboratory for Biology and Control of Plant Diseases and Insect Pests, Changsha, China.|College of Plant Protection, Hunan Agricultural University, Changsha, China.
authors.forename: Xing
authors.initials: X
authors.lastname: Wang
authors.affiliation: College of Plant Protection, Hunan Agricultural University, Changsha, China.
authors.forename: Yan
authors.initials: Y
authors.lastname: Liu
authors.affiliation: College of Plant Protection, Hunan Agricultural University, Changsha, China.
authors.forename: Ming-Zhu
authors.initials: MZ
authors.lastname: Su
authors.affiliation: Hunan Provincial Key Laboratory for Biology and Control of Plant Diseases and Insect Pests, Changsha, China.|College of Plant Protection, Hunan Agricultural University, Changsha, China.
authors.forename: Guo-Hua
authors.initials: GH
authors.lastname: Huang
mesh_terms: D000818:Animals; D005260:Female; D005298:Fertility; D006801:Humans; D007915:Lepidoptera / Q000254:growth & development / Q000502:physiology*; D008297:Male; D010058:Oviposition; D013696:Temperature