IRAC has just published the second edition of the very popular manual “Prevention and Management of Insecticide Resistance in Vectors of Public Health Importance”. This has been extensively revised and updated with many completely new sections added to chapters, along with further graphs and figures including some very useful flowcharts explaining resistance management best practice and what to do if you suspect resistance. Copies of the manual will be printed for circulation shortly but in the meantime you can be…
Chemical insecticides can be applied to conventional and transgenic crops expressing insecticidal proteins. When conducting a pest management program, it is important to take into account IRM considerations for both the transgenic trait (i.e. refuge adoption) and the chemistries being employed (both foliar applied and seed treatments). The IRAC Statement lists the key factors that should be considered when assessing the IRM value of applying the chemical insecticide….
The IRAC International Plant Biotechnology Committee has just published two position papers for insect resistance management in transgenic crops. The papers, available on the IRAC website, are titled: “Seed Blends for Resistance Management of Insect-Protected Transgenic Crops” and “IRM for Transgenic Crops in Small-Holder Agricultural Systems”…
The popular IRAC Mode of Action Classification mini-booklet and the poster showing the chemical structures has been updated and reprinted. The previous printed editions related to earlier version of the classification scheme but these latest editions are based on the most recent classification version 7.3. In addition the format and layout has been improved and many of the chemical structures on the poster have been redrawn to standardise the nomenclature. Both the booklet and the poster can be downloaded from…
The IRAC Methods Team have produced another video in their series of test method videos. This video shows how to carry out Method No.030 evaluating the susceptibility of stinkbugs to insecticides from mode of action groups, 1A (carbamates), 1B (organophosphates), 3A (pyerethroids), and 4A (neonicotinoids). The method has been validated for Euschistus heros and can be used for susceptibility baseline testing and resistance monitoring….
The paper reports on the sensitivity monitoring executed by DuPont and collaborators in Italy, Spain, Greece since 2009 in order to detect possible sensitivity shifts of T. absoluta from baseline sensitivity to the diamide insecticide chlorantraniliprole (MoA group 28). The results of the 2014 bioassays revealed the first cases of T. absoluta resistance to diamide insecticides in South-East Sicily. The potential integrated control strategies are discussed, aiming to prevent further directional selection of resistance alleles via the adoption of stringent…
IRAC held their 49th International Spring Meeting at the Hamner Conference Center, Research Triangle Park, NC hosted by BASF and Bayer CropScience on 17-20 March 2014. There were 9 sessions held over the 4 days including various working group planning meetings, a meeting of the IRAC Executive, and an “International Day” with four invited guest speakers. Presentations from the ‘International Day’ can be found on the IRAC website Resources Page by filtering for Spring Meeting 2014. In addition to the…
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….
A new guideline has been published by IRAG UK which provides advice on the control of grain aphid (Sitobion avenae) populations that may contain individuals with kdr resistance to pyrethroid insecticides commonly used for aphid control on UK cereals. The guideline can be downloaded from the website www.pesticides.gov.uk or via this link….
This module is designed to introduce the basic concepts behind the development and management of insecticide resistance in agricultural and horticultural crops. The presentation is targeted to those that may be being exposed to the concept of insecticide resistance for the first time or simply wishing to refresh their knowledge. More detailed information on the factors which influence resistance development and its management will be provided in future modules produced by IRAC International….