After several months development IRAC has launched its new website on schedule. The site provides a reorganisation of IRAC’s resistance managment information arranged by International Working Group and Country Group. It has a new modern look based on the WordPress content managment platform with greater focus on current informtion in news posts but still with links to popular educational material such as the MOA classification scheme and posters….
…resistance requires the knowledge of specific methods of insecticide bioassays and analysis of data. Consequently, Michigan State University, IRAC International, and Corteva Agriscience in partnership with PRABIA offered a training course in methods of bioassays for FAW. The training consisted of classroom training and hands-on laboratory and field experience and reviewed concepts associated with insecticide mode of action and resistance to synthetic compounds. A review of the theory and practice of laboratory bioassays methods for detection of insecticide resistance including…
The combined application of two insecticides with different modes of action (MoA) is an increasingly common approach to insect pest management. Insecticide mixtures (tank-mix or pre-formulated mixture) are applied to crops for pest management for many different reasons. These reasons include to broaden spectrum, to combine different technical characteristics of insecticides, or to combine two modes of action to control species where single compound applications do not provide sufficient control. Mixing insecticides, may also offer a benefit for insecticide resistance…
The IRAC video explaining the importance of mode of action as the basis for effective and sustainable resistance management is now available in Spanish, Portuguese and Chinese…
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….
…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 IPM strategies inclusive of reasoned IRM/MoA alternation programmes. See the whole paper…
After much discussion and debate the final draft of this popular poster is now with the printers and 2000 copies will be produced for distribution by IRAC members. The poster is based on the latest version of the Classifciation scheme (version 6.3) which includes new actives cyenopyrafen and cyflumetofen. Copies of the poster should be available in November.
…Actions classifications and IRM statements so that the relevant authorities can make the right recommendations to the end users . The Pesticides Industry is suggested to collaborate with Government research institutions to come out with new technologies to address the resistance issue and ensure the new technologies are implemented effectively in the field. The Pesticides Industry is recommended to work under the CropLife umbrella to avoid bias among the companies in promoting their products for any particular programs. The group…
The Tomato Leafminer Tuta absoluta is a pest of great economic importance with high reproduction capabilities and short generation life cycle which makes it at risk of developing resistance. The pest has spread from L. America, where there is already resistance to a range of MOA groups, to Europe, the Middle East and N. Africa. Using the Tuta absoluta poster IRAC is taking pro-active steps to advise on key management strategies to evaluate and reduce the spread of resistance….
IRAC España ha emitido una Alerta sobre resistencias de Tuta absoluta a diamidas (MoA 28) en tomate. En los últimos meses se están produciendo muchos problemas en el control de Tuta absoluta en las principales zonas productoras de tomate de invernadero de Almería y Murcia, detectándose un claro incremento de la presión de la plaga y dificultando una protección correcta de este cultivo….