The base is designed to hold a specimen cup, the type of cup used for urine samples. Then you put the trap’s base into the hole, step on it, and it goes right into the ground very securely. “So you use a bulb planter to pop out a core of soil. “The base, which goes into the ground, is exactly the same dimensions as a bulb planter,” he says. The trap has two main components: a cup-like base and a lid. So in 2014, he tested all the existing ways to trap beetles, and condensed all the best features down to create the new Vernon Pitfall Trap. Because wireworms live for several years, mass trapping is a long-term strategy, with annual trapping to reduce the numbers in subsequent wireworm generations.īob Vernon of Agriculture and Agri-Food Canada (AAFC) in Agassiz, B.C., wanted to develop a more cost-efficient and time-efficient method of trapping beetles. Each can be used for gathering information on wireworm populations to help with decisions on wireworm management, and for mass trapping of the beetles. The two traps use somewhat different approaches to catching click beetles, and each has its own strengths. In potatoes, they damage the seed pieces and, most importantly, they tunnel into the daughter tubers, reducing marketable yields. They really like cereals and grasses, but if those crops aren’t available, they’ll happily munch on other crops. The larvae feed on the underground parts of plants. Then they pupate and emerge from the soil as adults in the spring. The larvae hatch from the eggs and live in the soil for about four or five years. ![]() In most species, the beetles lay their eggs in the soil in the spring. A single field can have several species, and species differ from each other in various ways, including responses to control measures. Canada has about 30 wireworm species of economic importance. ![]() Wireworms belong to the Elateridae family. New, innovative traps are set to become valuable additional tools in the fight against these very damaging pests. However, none of the available options gives complete control, and wireworm populations are exploding in some parts of Canada. Two researchers have done extensive work to improve and expand options for controlling wireworms, including insecticides and crop rotations. Two wireworm experts have developed innovative traps that target the adult stage of wireworms, called click beetles.
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