|
|
Inteferent Effect of Some Plant Extracts and Pesticides on the Growth and Development of Myzus persicae and Lipaphis erysimi (Kaltenbach) |
Zhou Qiong; Liang Guangwen; Zeng Ling |
School of Life Science; Hunan University of Technology and Science; Xiangtan 411201; Laboratory of Insect Ecology; South China Agricultural University |
|
|
Abstract The effect of Xanthium sibiricum and Syngonium podophyllum alcohol extracts, petroleum spray lils and 0.3 % Azadirachtin water-in-oil emulsion on the poprlation of Myzus persicae and Lipaphis erysimi were experimented in laboratory. The two plans extracts and the pesticides could reduced the survival rate of the 1st instar nymph of the tested aphids. The seguence of effect on M. persicae 0.3 % Azadirachtin water-in-oil emulsion(2 000×)>X. sibiricum extracts (DW 0.04 g·mL -1)>petroleum spray oils(4...
|
Received: 26 September 2003
|
|
|
|
|
|
|