| The peach aphid Myzus persicae Sulzer is one of the major pests found on peach trees. The CTIFL has been running tests since 2005 to assess the efficacy of Surround® WP, a product containing kaolin that is applied either at the time of leaf fall to prevent winter egg-laying or in the spring to prevent the establishment of fundatrices. The period of application and the production system (organic or conventional) were tested, allowing a comparison with chemical aphicides. The clay product used at leaf fall reduced winter egg-laying by about 50%. Autumn application of Surround® alone was not sufficient to control aphid colonies in the spring, but it could be used as part of a supervised control strategy, combined with the application of mineral oils in late... |
