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 cotton aphid (Aphis gossypii) is a highly polyphagous pest, which has a host range which includes many commercially grown agricultural and horticultural plant species. Insecticide Resistance has been recorded in cotton aphids since the mid-1960‘s, when organophosphate, carbamate and cyclodiene organochlorines were utilised to control this aphid in a wide range of crops. There have been reports of resistance to pyrethroids and a small number of reports of resistance to nicotinic acetylcholine receptor agonist insecticides in cotton (e.g. Australia, China & USA) and cucurbits & vegetables (e.g. Japan & Korea).