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Genetic basis of resistance and studies on cross‐resistance in a population of diamondback moth, Plutella xylostella (Lepidoptera: Plutellidae)
Author(s) -
Liang Pei,
Gao XiWu,
Zheng BingZong
Publication year - 2003
Publication title -
pest management science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.296
H-Index - 125
eISSN - 1526-4998
pISSN - 1526-498X
DOI - 10.1002/ps.760
Subject(s) - plutella , plutellidae , diamondback moth , lepidoptera genitalia , biology , resistance (ecology) , insecticide resistance , population , botany , toxicology , agronomy , demography , sociology
The genetic basis of abamectin resistance was studied in a strain of the diamondback moth, Plutella xylostella (L), following laboratory selection of a field population collected at Xuanhua, Hebei Province, China. Data from the testing of F 1 progeny from reciprocal crosses between abamectin‐resistant and abamectin‐susceptible strains indicated that resistance might be autosomal and incompletely recessive with a degree of dominance of −0.13. Chi‐squared analyses from the response of a backcross of crossed F 1 progeny and the resistant strain and F 2 progeny were highly significant, suggesting that the resistance was probably controlled by more than one gene. The results of cross‐resistance studies showed that there was little cross‐resistance between abamectin and four pyrethroid insecticides (deltamethrin, beta‐cypermethrin, fenvalerate and bifenthrin) and no cross‐resistance between abamectin and the acylureas chlorfluazuron or flufenoxuron. Copyright © 2003 Society of Chemical Industry