The new poster from the IRAC Sucking Pest WG are titled “IRM for sustainable whitefly control with special reference to Bemisia tabaci” and “Major mechanisms of insecticide resistance in green peach aphid, Myzus persicae Sulzer”. These can be viewed via the the individual website Pest Pages, the Sucking Pest WG Team Page or the pdf files can be downloaded directly using the links on the poster titles above.
In South Africa, it will be critically important to have a harmonised approach to IRM for FAW across the industry and across technologies. This approach should combine a clear and simple structured refuge policy which does not confuse growers between the requirements for FAW and maize stalk borers in South Africa, and which enables a high grower compliance. There are several commercialised Bt-products in South Africa which are very similar. This approach is in the best interests of the seed industry, growers and South African consumers. The new guidelines have now been published on the IRAC website.
Following a first registration in Australia, afidopyropen from BASF has been added to the IRAC MoA Classification Scheme as Group 9D. Previously it was included in the Appendix awaiting registration. The product is intended for the control of green peach aphid (Myzus persicae), cabbage aphid (Brevicoryne brassicae), currant lettuce aphid (Nasonovia ribisnigri) and cotton/melon aphid (Aphis gossypii); and for the suppression of silverleaf whitefly in brassica vegetables, celery, cucurbits, fruiting and leafy vegetables (including brassica leafy vegetables), parsley, potato, sweet potato, ginger and cotton. The product is also intended for the control of aphids in ornamentals.
The initial objectives of the team will be to investigate the resistance risk of nematicides and to develop a mode of action classification scheme similar to that available for insecticides and acaricides. Information will be posted on the website under Nematode Team.
A video from CropLife International and the Insecticide Resistance Action Committee (IRAC) that explains the importance of mode of action as the basis for effective and sustainable resistance management to preserve the utility and diversity of available insecticides and acaricides. The video can be viewed in English or watch it in Spanish, Mandarin or Portuguese.
The application of an insecticide to the soil, either as a seed treatment or as a direct application, is designed to either control soil borne insect pests or provide systemic control of pests above the ground. The general principles of resistance management apply to seed and soil treatments, as with foliar applied insecticides, however there are some additional factors that should be considered as outlined the the latest statement from IRAC titled: IRAC International statement on the resistance management considerations of utilizing soil & seed applied insecticides