Direct regulation of the black cherry aphid in organic table cherry production (BIOFRUITNET Practice Abstract)

Minimisation of tree damage and fruit losses due to black sooty fungi growing on aphid honeydew (Picture 2). Practical recommendations Direct regulation • Apply kaolin (Picture 4) in autumn to reduce the immigration of winged aphids from the secondary host back to the cherry tree (Picture 3). • Apply paraffin oil in spring prior to bud break when fundatrices (or founding mothers) hatch from the winter eggs to further reduce the starting population in spring (Picture 5). • Apply pyrethrum + soap or azadirachtin after bloom