Effect of a short period of adaptive pre-feeding on the predatory functional response of Aphidoletes aphidimyza (Rondani) reared on Megoura japonica (Matsumura)
Author of the article:LIU Ming-Hong SHEN Xiu-Xian HUANG Chun-Yang WANG Xiong YANG Mao-Fa YU Xiao-Fei SHANG Sheng-Hu
Author's Workplace:Zunyi Tobacco Company of Guizhou Provincial Tobacco Corporation, Zunyi 564200, China; Institute of Entomology, Guizhou Provincial Key Laboratory for Agricultural Pest Management of the Mountainous Region, Guizhou University, Guiyang 550025, China; College of Tobacco Science, Guizhou University, Guiyang 550025, China; Guizhou Academy of Tobacco Sciences, Guiyang 550081, China
Key Words:Aphidoletes aphidimyza (Rondani); Megoura japonica (Matsumura); short adaptive pre-feeding; predatory functional response; intraspecific interference effect
Abstract:
[Objectives] To investigate the potential of using Aphidoletes aphidimyza (Rondani) reared on Megoura japonica (Matsumura) as a
biological control for Myzus persicae (Sulzer), and thereby clarify the benefits of conducting short-term prey
habituation before releasing aphid gall mosquitoes for biological control
purposes. [Methods] The predatory responses of A. aphidimyza feeding on either M. japonica or M. persica were measured and compared
under laboratory conditions. [Results] The predatory response of A. aphidimyza fed on M. japonica for a long period and M. persica for a short period was consistent with a Holling type Ⅱ
model; an initial increase that subsequently levelled off with increasing prey
density. A one-way analysis of variance indicates that there was no significant
difference in the daily number of prey consumed by A. aphidimyza in the two treatment groups (P > 0.05). The instant attack rates of each treatment group on M. japonica and M. persicae were
0.170 2 and 0.155 4, respectively, and their respective prey processing times
were 0.116 9 d and 0.107 0 d, respectively. A one-way analysis of variance
indicates that the density of A.
aphidimyza own had no significant (P > 0.05) effect on the daily average consumption of M. persicae. [Conclusion] A. aphidimyza raised on M. japonica do not require short-term
exposure to M. persicae before
release.