[Effects of applying Sophora alopecuroids extracts and emamectin on the growth, development, and fecundity of diamondback moth plutella xylostella].
In this paper, the methanol- and water extracts of Sophora alopecuroids were applied respectively with emamectin, to study their effects on the growth, development, and fecundity of diamondback moth Plutella xylostella. The results showed that the oral toxicity of the mixtures to the 3rd larvae of P. xylostella was much higher than that of emamectin, with the medium lethal concentration (LC50) of methanol extract plus emamectin, water extract plus emamectin, and emamectin being 0.19, 0.32 and 0.51 mg L(-1), respectively. The pupated percentage, emergence percentage, and fecundity of P. xylotella were obviously negatively affected after treated the 3rd larvae with sub-lethal dosage of the mixtures and emamectin.
Yu
Tian-Cong
TC
Provincial Key Laboratory of Pesticide Toxicology and Application Technique, Shandong Agricultural University, Tai' an 271018, Shandong, China. yutiancong8057@163.com
Luo
Wan-Chun
WC
Ding
Jun
J
Yan
Lei
L
Xiao
Ting
T
Niu
Hong-Tao
HT
D000818:Animals; D004187:Disaccharides / Q000494:pharmacology*; D004305:Dose-Response Relationship, Drug; D007559:Ivermectin / Q000031:analogs & derivatives* / Q000494:pharmacology; D007814:Larva / Q000187:drug effects; D007915:Lepidoptera / Q000254:growth & development* / Q000502:physiology; D010936:Plant Extracts / Q000494:pharmacology*; D012098:Reproduction / Q000187:drug effects; D029909:Sophora / Q000737:chemistry*
D004187:Disaccharides; D010936:Plant Extracts; D007559:Ivermectin; C443359:emamectin