Red plastic spheres that mimic apples and catch apple maggot flies on their sticky surfaces. We are glad to offer reusable traps, which you can order in bulk or in kits. The kit contains everything you need to set up 3 complete traps (optional apple scent lure may be purchased separately). Includes 3 sturdy spheres, 3 wire hangers, 8 oz can of pesticide-free, weather resistant Tangle Trap sticky coating, brush applicator for sticky coating, and complete instructions. You may also order the spheres and sticky coating separately. For monitoring, use 1-2 traps/acre. Home gardeners, use about 1 trap/100 apples (2-6 traps per tree, one per dwarf tree). Set the traps out 3-4 weeks after petal fall (mid-June).