For added appleleafmidgecontrol, spray the tree and the ground around it with a fruit tree insecticide. In early spring you can lay out insect barrier fabric around young fruit trees to prevent the adults from hatching out of the soil. Control of appleleafmidge is difficult using insecticides since the larvae are well protected inside the curled up leaves. At this time, no products are registered to control this pest in the Pacific Northwest. Control. Cultural - There are no cultural methods that will adequately reduce the risk or severity of applemidge infestations. Hand removal and destruction of infested leaves may help but removing terminal leaves can result in the same impact on tree development. For Appleleaf curling midge, Vayego 200SC should be applied two to three weeks prior to the second and third generational peaks. When targeting the second generation, this application can coincide with the Bio fix plus 80 GDD timing for Codling moth control or be applied 7 days later. Rather than protect the apple tree, kaolin applications and, to a lesser extend reflective mulches, actually increased damage on trees compared to the control treatment. Their potential detrimental effects on predators are discussed. Keywords: appleleaf-curling midge... Prospects for the control of appleleafmidge Dasineura mali (Diptera: Cecidomyiidae) by mass trapping with pheromone lures. The appleleaf curling midge is a species of small fly that causes curling in appleleaves. The female lays its eggs on immature appleleaves during the spring. The larva of these eggs feed on the leaves causing them to curl tightly around the insects. It needs refinements and more study before becoming a feasible control option for D. mali. Keywords: Cecidomyiidae; Dasineura mali; appleleafmidge; mass trapping; sex pheromone. Simple Summary The appleleaf-curling midge is an invasive pest of apple. The pest can pupate on fruit and contaminate fresh fruit for export, causing biosecurity problems to many uninvaded regions… Application of semiochemicals to control Dasineura mali, the Appleleafmidge. Mass trapping. Exploiting the sex pheromone of the appleleafmidge, Dasineura mali, for pest monitoring and control. IOBC/WPRS Bulletin 30:159–167. Appleleafmidge overwinter as pre-pupae or pupae in the soil and occasionally in curled leaves or other protected sites beneath host trees. Adults begin to emerge in May to mate and lay eggs on the edge of terminal appleleaves. Larvae feed inside the leaf galls for 2-4 weeks. Also known as AppleLeaf Gall Midge, or AppleLeafMidge, this tiny insect is mostly a problem in young apple orchards and rootstock nurseries, due to its ability to limit the developing trees growth. Project title: Project number: Blueberry gall midge: sex pheromone monitoring and control with insecticides. SF126.
