Effective duration of pesticide-induced susceptibility of rice to brown planthopper (Nilaparvata lugensStål, Homoptera: Delphacidae), and physiological and biochemical changes in rice plants following pesticide application

Autor: Guo-Qin Yang, Hui-Min Qiu, Jin-Cai Wu, Guang-Jie Liu, Jin-Lan Liu, Richard M. Wilkins
Rok vydání: 2004
Předmět:
Zdroj: International Journal of Pest Management. 50:55-62
ISSN: 1366-5863
0967-0874
Popis: The effective durations of pesticide-induced susceptibility of rice to brown planthopper (BPH), Nilaparvata lugens (Stal) (Homoptera: Delphacidae), and physiological and biochemical changes in rice plants following pesticide applications, were studied. The effective duration of the herbicide butachlor on the susceptibility of rice variety Zhengdao 2 to BPH exceeded 16 days. The difference in damage rating between rice plants with pesticide treatments and control plants gradually decreased with days after treatment (DAT). There was a significant correlation between damage rating and DAT. The number of rice tillers at 3 – 10 DAT and plant heights at 7 – 10 DAT declined on Zhengdao 2 with the butachlor treatment. On the other hand, there were no effects of butachlor on damage rating, number of rice tillers and plant height for Xiushui 63. This might be related to tolerance of Xiushui 63 to butachlor. For Zhengdao 2, the fungicide jingganmycin and the insecticide bisultap had a significant influence on BPH da...
Databáze: OpenAIRE
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