Wireworms destroy dahlia tubers by boring into tubers eating the tuber from the inside, they are especially attracted to the new growth (the eyes). Stop the life cycle by controlling the adult stage, capture the click beetle. All proceeds from the traps goes directly back into the research of the wireworm.  Set the trap early spring before mating season begins. Leave in place all season to capture beetles. 1 trap is enough for an average garden. WE DO NOT SHIP THIS ITEM, PICK-UP ONLY.