Journal of Pest Science (2014) 87, 659-670

Qin-Jian Pan, Lin Chen, Xiao-Li Lin, Thomas J. Ridsdill-Smith and Tong-Xian Liu (2014)
Geographical variations in life histories of Plutella xylostella in China
Journal of Pest Science 87 (4), 659-670
Abstract: The diamondback moth, Plutella xylostella (L.) (Lepidoptera: Plutellidae), is one of the most important pests of crucifers worldwide. Susceptibility to insecticides and host plants of P. xylostella vary geographically. To investigate local adaptation, we measured the variation of the biology, life-histories and life-table parameters of P. xylostella populations from five widely ranging geographical regions in China, Beijing (BJ), Shandong (SD), Shaanxi (SX), Yunnan (YN), and Guangdong (GD), using the same variety of cabbage (Brassicae oleracea L. var. capitata; var. "Qingan 80") as the food plant at the same temperature in the laboratory. Principal components analysis showed the life-history and life-table parameters of P. xylostella differed among the five geographical populations. The first component, including female fecundity and adult longevity and male adult longevity, accounted for the most variation among the five geographical regions, which can be classified into three groups: BJ–SX, YN–GD, and SD. The intrinsic rate of increase (r m ) was greatest in BJ and SX, intermediate for GD and YN, and the lowest for SD, whereas mean generation time (T) was greatest in SD, intermediate for YN and GD, and the lowest for BJ and SX. These variations reflect the importance of local genetic adaptation and should be considered when planning management of P. xylostella in China.
(The abstract is excluded from the Creative Commons licence and has been copied with permission by the publisher.)
Link to article at publishers website
Database assignments for author(s): Tong Xian Liu, Thomas James Ridsdill-Smith

Research topic(s) for pests/diseases/weeds:
general biology - morphology - evolution

---

Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
	Plutella xylostella	Cabbage (Brassica oleracea)	China (south)
	Plutella xylostella	Cabbage (Brassica oleracea)	China (NE)