France, difficulties to manage insect pests of winter oilseed rape (Brassica napus var. oleifera): resistances to insecticides
In France, these last years, pest management had become more and more uneasy in relation with increased damage due to animal pests, lists of available chemical tools shortened and resistances to insecticides. The Green peach aphid (Myzus persicae L)met on rape expresses resistance to pyrethroids (target mutation). In autumn, to contain aphid presence and avoid virus transmissions, an adapted aphicid product is needed as in the same time only a pyrethroid is usable to control any other pests. Such a spray may help aphid establishment. Pollen beetle (Meligethes aeneus FABRICIUS) also expresses resistance (metabolic type) to pyrethroids. Thus this situation posed problems till 1999, on winter oilseed rape. Till 8 years, any new chemical had been registered. So, all the still registered products have been tested again. By chance, today, in spring, farmers can choose between three remaining-with similar, but not so high, efficacies-solutions: tau-fluvalinate and bifenthrin, two exceptions among the pyrethroid family; and malathion (organophosphate), a chemical alternative. Despite near 30 years of quite exclusive use of pyrethroids for field sprays and registered alternatives less and less numerous, this chemical family seems to be still satisfactory working against the numerous others damaging (i. e. Ceutorhynchus spp) or potentially damaging pests of rape.
Pyrethroid organophosphate neonicotinoid pollen beetle Meligethes aeneus green peach aphid Myzus persicae Ceutorhynchus flea beetle Phyllotreta
Ballanger Yannick Détourné Delphine Delorme Robert Xavier Pinochet
Centre Technique Interprofessionnel des Oléagineux Métropolitains, 78850 Thiverval-Grignon, France Service Régional de la Protection des Végétaux, Laboratoire de Loosen Gohelle, 62750 Loos-en-Gohelle Institut National de la Recherche Agronomique, Unité de Phytopharmacie et Médiateurs Chimiques, 7802
国际会议
第十二届国际油菜大会( The 12th International Rapeseed Congress)
武汉
英文
1540-1543
2007-03-26（万方平台首次上网日期，不代表论文的发表时间）