Protection of Potatoes and Mortality of Wireworms (Agriotes obscurus) With Various Application Methods of Broflanilide, a Novel Meta-Diamide Insecticide.

Autor:	van Herk WG; Agassiz Research and Development Centre, Agriculture and Agri-Food Canada, P.O. Box 1000, Agassiz, British Columbia, V0M 1A0, Canada., Vernon RS; Sentinel IPM Services, 4430 Estate Drive, Chilliwack, British Columbia, V2R 3B5, Canada., Goudis L; BASF Canada Inc., 1288 Glanworth Drive, London, Ontario, N6N 1H1, Canada., Mitchell T; Agassiz Research and Development Centre, Agriculture and Agri-Food Canada, P.O. Box 1000, Agassiz, British Columbia, V0M 1A0, Canada.
Jazyk:	angličtina
Zdroj:	Journal of economic entomology [J Econ Entomol] 2022 Dec 14; Vol. 115 (6), pp. 1930-1946.
DOI:	10.1093/jee/toac152
Abstrakt:	Wireworms are primary pests of potatoes in Canada. Presently, the highly toxic organophosphate phorate (i.e., Thimet 20G) is the only effective insecticide in use in Canada. As such, there is an urgent need for novel alternative treatments that provide competitive tuber blemish protection and wireworm reduction with a safer human and environmental portfolio. Herein we evaluated broflanilide, a novel meta-diamide insecticide for both tuber protection and wireworm mortality. When evaluated in field trials in Agassiz, British Columbia over 6 yr, broflanilide applied as a seed piece treatment (SPT) to mother tubers at 1.5-2.0 g AI/100 kg seed (approx. 50 g AI/ha), or as an in-furrow spray (IFS) at 0.23-0.25 g AI/100 m row (approx. 25 g AI/ha) was as effective at reducing blemishes to daughter tubers by wireworms (Agriotes obscurus) as phorate (Thimet 20G at 3230 g AI/ha), bifenthrin (Capture 2EC IFS at 300 g AI/ha) and clothianidin (Titan ST at 312.5 g AI/ha). In addition, broflanilide SPT and IFS applied at the above rates reduced resident wireworms (in the field at the time of planting) by 95.4-99.0% and neonate wireworms (produced from eggs laid during the growing season) by 98.1-100%. Similar results were obtained when broflanilide IFS (nonsystemic) was paired with clothianidin SPT (systemic) for broad-spectrum potato insect pest control. Strategies for the use of broflanilide on wheat (e.g., Teraxxa F4) in rotation with potatoes (Cimegra), both registered in Canada in 2020 are discussed. (© Her Majesty the Queen in Right of Canada, as represented by the Minister of Agriculture and Agri-Food Canada, 2022.)
Databáze:	MEDLINE
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