Attractiveness of rice plant volatiles to Anagrus nilaparvatae Pang et Wang
Author of the article:LI Ting; WANG Cheng-Pan;JIANG Na-Na;WEI Ji-Qian;MO Jian-Chu
Author's Workplace:Ministry of Agriculture Key Laboratory of Agricultural Entomology, Institute of Insect Sciences, Zhejiang University, Hangzhou 310058, China; Hangzhou General Station of Plant Protection and Soil Fertilizer, Hangzhou 310020, China
Key Words: rice plant volatiles, Anagrus nilaparvatae, Y-tube olfactometer, behavior response, mixing ratio
Abstract:
[Objectives] To evaluate the attractiveness of single, and mixtures of different, rice plant volatiles to Anagrus nilaparvatae and thereby provide a theoretical basis for further exploring the application of semiochemical-based attractants as part of the integrated management of this pest. [Methods] The behavioral responses of A. nilaparvatae to 12 rice plant volatiles, including alcohols, ketones, phenols, aldehydes, olefins and indoles, were tested in a Y-tube olfactometer. Several mixtures of behaviorally-active compounds were also tested. [Results] A. nilaparvatae was significantly attracted by 0.1 mg/L of geranyl acetone, 1 mg/L of 2-heptanol, 10 mg/L of 1-nonanol and 0.01 mg/L of β-caryophyllene. Mixture No.1, No.3, No.4 and No.10 were also significantly attractive to A. nilaparvatae. [Conclusion] Rice plant volatiles can significantly affect the behavior of A. nilaparvatae, and their attractiveness varies with compound, concentration and the ratio at which different volatiles are mixed.