Sucking Pests Team

The Sucking Pest WG was formed in 2008 to develop and disseminate IRM strategies for major sucking pests of global importance. It is recognised that this is a broad remit given the range of crops and pests, but by focusing on specific areas, the team is convinced that it can deliver strategies for key pests such as whiteflies, aphids and thrips, before moving on to consider other groups.  The Sucking Pest WG absorbed the earlier Neonicotinoid WG in 2009 as there was significant overlap between the teams and it was considered more appropriate to have a WG covering all chemistries and based on pest type.

Recent Activity

Myzus persicae neonicotinoid resistance management guidelines for stone fruit in Southern Europe were updated in June 2018 by the IRAC Sucking Pest Working Group. The resistance is based on a target-site mutation which strongly affects neonicotinoid efficacy. The results of surveys from 2010 to 2017 confirmed the spread and presence of neonicotinoid-resistant aphids in many of the stone fruit orchards of Southern France, Spain and Italy. Recent findings proved the resistance also in Andalusia, Spain where the R81T mutation was found also in several vegetable crops.

Map of areas with records of neonicotinoid target-site resistance up to 2018.

Team Objectives

  • Short term actions to minimize the spread of resistant sucking pests
  • Prepare IRM guidelines for pests with, or at risk of developing resistance in the mid-term
  • Prepare for future sucking pest problems long term (avoid resistance development

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