The Apple Maggot Monitoring Trap Is Perfect For Tackling Both Apple & Pear Fruit Moth Damage. The Maggot Damage In Apples & Pears Is Mainly Caused By The Caterpillars Of The Codling Moth.females Tend To Lay Eggs On The Leaves & Fruit Which Hatch After Approx. 10-14 Days. The Caterpillars Then Bore Into The Fruit & Feed On The Fruit In Early Summer.male Moths Tend To Fly & Mate On Warm Nights, So The Trap Is Best Used From Mid-may To The End Of July. Each Monitoring Trap Covers Between Three To Five Trees, Luring The Male Moths. apple Maggot Monitoring Trap Complete With Hanger & One Lureeasy To Use, Simply Unfold The Sticky Insert & Place It In The Base Of The Trapwill Monitor Moths For Up To Five Average Size Trees Up To 12 Metres Apartadditional Refills Available Seperately Containing 2 Pheromone Luressuitable For Organic Gardening