Apple sawfly
larvae leave the fruit, the nematodes infect larvae in the soil, helping reduce the population that overwinters. In addition, mass trapping of the adults with [...] leave damaged fruit and drop to the soil, where they form cocoons and remain until the following spring. Spring development The larvae pupate in spring. 3-4 [...] with Horiver Drystick is an effective tool to control apple sawfly populations. As part of an Integrated Pest Management (IPM) program, beneficial nematodes