Key Laboratory of Pesticide Chemistry and Application Technology, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, China.
Pest Manag Sci. 2010 Jul;66(7):779-85. doi: 10.1002/ps.1942.
IPP-10 is a novel neonicotinoid insecticide recently developed in China and has good activity against sucking insects. Studies were carried out to investigate the activity of IPP-10 against Rhopalosiphum padi L.
The results demonstrated that IPP-10 had both contact and systemic activity, including acropetal and basipetal translocation in wheat vascular bundles. Starved R. padi were allowed to stay on wheat treated with a sublethal dose of IPP-10. The results of studying their feeding behaviour from an electrical penetration graph (EPG) revealed a decrease in total time and bout duration of xylem and phloem ingestion, but the total time and bout duration of phloem salivation were significantly prolonged. The frequency (7.03 +/- 0.49 Hz) of the xylem ingestion waveform produced by aphids on wheat treated with IPP-10 was significantly lower than that of blank control aphids (8.20 +/- 0.30 Hz). Consequently, aphids born on wheat treated with IPP-10 were obviously lighter and less fecund than the control aphids.
These tests indicated that IPP-10 had both contact and systemic activity, with sublethal effects resulting in reduction in R. padi feeding behaviour, growth rate and fecundity.
IPP-10 是中国新开发的一种新型烟碱类杀虫剂，对刺吸式昆虫具有良好的活性。本研究旨在探讨 IPP-10 对麦长管蚜的活性。
结果表明，IPP-10 具有触杀和内吸活性，包括在小麦维管束中的向顶和向基转移。饥饿的麦长管蚜被允许停留在用亚致死剂量的 IPP-10 处理过的小麦上。通过电穿透图（EPG）研究它们的取食行为的结果表明，木质部和韧皮部的总取食时间和取食持续时间减少，但韧皮部唾液分泌的总取食时间和取食持续时间显著延长。在 IPP-10 处理的小麦上取食的蚜虫产生的木质部取食波形的频率（7.03 +/- 0.49 Hz）明显低于空白对照蚜虫（8.20 +/- 0.30 Hz）。因此，在 IPP-10 处理的小麦上产生的蚜虫明显比对照蚜虫体重更轻，产卵量更少。
这些试验表明，IPP-10 具有触杀和内吸活性，亚致死剂量会降低麦长管蚜的取食行为、生长速度和繁殖力。
