Effects of host, temperature and relative humidity on competitive displacement of two invasive Bemisia tabaci biotypes [Q and B]

Dong Chu, Yun Li Tao, You Jun Zhang, Fang Hao Wan, Judith K. Brown

Research output: Contribution to journalArticle

12 Scopus citations

Abstract

Bemisia tabaci shifted unexpectedly in China from a predominance of B biotype to Q biotype during 2005-2008. This observation stimulated an interest in investigating whether environmental factors, including host, temperature and relative humidity (RH) could possibly explain the observed shift in biotypes distribution. Results indicated that all three parameters examined influenced biotype survivability. The percentage of B biotype, when reared together on pepper plants with the Q biotype, decreased significantly from 66.7% in the founder population, to 13.6% and 3.7% in the first and second generations, respectively. When the B (founder at 66.7%) and Q (founder at 33.3%) biotypes were reared together on eggplant alone, or on pepper-plus-eggplant combination, the population size of the B biotype either remained constant, or increased somewhat in the first and second generations. On eggplant, the effects of RH and temperature on the competitiveness between the Q and B biotypes (3 pairs of Q and 6 pairs of B) were not significant.

Original languageEnglish (US)
Pages (from-to)595-603
Number of pages9
JournalInsect Science
Volume19
Issue number5
DOIs
StatePublished - Oct 1 2012

Keywords

  • Bemisia tabaci B biotype
  • Biological invasion
  • Host plant
  • Non-competitive displacement
  • Q biotype

ASJC Scopus subject areas

  • Ecology, Evolution, Behavior and Systematics
  • Agronomy and Crop Science
  • Biochemistry, Genetics and Molecular Biology(all)
  • Insect Science

Fingerprint Dive into the research topics of 'Effects of host, temperature and relative humidity on competitive displacement of two invasive Bemisia tabaci biotypes [Q and B]'. Together they form a unique fingerprint.

  • Cite this