The Apple Maggot trap and lure set have proven effective at reducing apple maggot damage. Flies are attracted by the lures and come to a sticky demise on the goo-covered apple spheres. This kit comes with 3 traps 3 lures and 3 hooks. Overview Apple Maggot is a type of fly that attacks apples blueberries hawthorn plums pears and cherries. They cause extensive fruit damage that renders fruit useless. Most fruits are attacked by flies that lay their eggs during late spring to early summer.