Journal
PEST MANAGEMENT SCIENCE
Volume 66, Issue 7, Pages 779-785Publisher
JOHN WILEY & SONS LTD
DOI: 10.1002/ps.1942
Keywords
IPP-10; neonicotinoid; Rhopalosiphum padi; systemic action; feeding behaviour; fecundity
Categories
Funding
- National Basic Research Programme of China [2003CB114407, 2010CB126106]
- Ministry of Agriculture of the People's Republic of China [200803002]
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BACKGROUND: 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. RESULTS: 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. CONCLUSION: 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. (C) 2010 Society of Chemical Industry
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