Trécé Wing Trap Kits contain everything you need for three months of monitoring. Trap has open design with spacers separating top and bottom helps trap bigger moths and insects. Versatile design for vegetable, fruit and nut crops. Includes 1C plastic trap top, wire hanger, three pre-stickied trapliners with counting grid, and three pheromeone lures. Replace liners as needed and lures every 3 to 4 weeks. Use two kits per block up to 10 acres in size, add an extra kit for every additional 10 acres. The Trécé pheromones lures are applied to rubber septas for even release over a 3 to 4 week duration for better capture rates. If you are not sure which pests are a problem in your area, check with your county Extension agent or land grant university.