At the recent first conference call of the new IRAC Lepidoptera WG it was agreed that the first priority was to investigate the resistance of the tomato leafminer Tuta absoluta and the diamond back moth Plutella xylostella. Initial actions identified were to develop educational posters on both these pests outlining the resistance status, mechanisms and chemistry involved. The objective is to have the posters completed by the time of the IRAC Spring Meeting in April….
The IRAC Sucking Pest Working Group has just published an updated version of their poster titled “Major mechanisms of insecticide resistance in green peach aphid Myzus persicae Sulzer“. The sections on the poster include, enhanced expression of esterases, MACE (modified acetylcholinesterase), nAChR target-site resistance, kdr (knock-down resistance) and resistance management guidelines….
Lynne Matthews is taking over from Fabrice Robin as BASF representative on the Pollen Beetle WG. Lynne has responsibility for insecticides in the BASF UK based technical team and has been organising the PB monitoring there in the last few years….
The IRAC Lepidoptera WG has just updated the popular Diamondback Moth (Plutella xylostella) poster that outlines the basic biology, resistance mechanisms and management along with general IRM strategies and modes of action available to control this pest. See the poster….
The English version of the IRAC Insecticide Resistance Management Video has proved so popular that we have now translated the video into 6 other languages. These are Chinese Mandarin, Japanese and Latin American Spanish and Portuguese, French and Hindi….
A new fruit fly species, morphologically very similar to B. dorsalis, has been reported spreading rapidly in central Africa. This new pest is attacking mangoes, citrus and other tropical fruits. It was recently described and called Bactrocera invadens (Drew et al., 2005). Its finding in Sri Lanka confirmed its suspected Asian origin. Monitoring is ongoing in S. Africa of this aggressive insect….
Aphid monitoring surveys in peach orchards conducted by Syngenta Crop Protection and Bayer CropScience have revealed that some populations of the green peach aphid (Myzus persicae) in Southern France and Northern Spain have developed high levels of resistance to neonicotinoid insecticides. For further details and recommendations on resistance management in the affected areas please refer to the recent IRAC eConnection article published on the website…