Beetles generally like to gather on willows and elms, and adults will appear from June to September in summer. Trees should pay more attention to willow, elm and peach trees. For example, there are many scarabs on the willow tree, and there will be a unicorn on the willow tree, which is also a kind of beetle. Unicorns will gather with scarabs to eat. There are no beetles on the longan tree. Ways to catch beetles: First, light a lamp in the Woods on a sunny night in summer. The brighter the light, the better. Hang a white cloth next to it. The lamp should be close to the cloth. ) Beetles will be lured by light and hit the white cloth. Second, dig a hole in the ground in the Woods at night and put some ripe peaches. Peaches should be soft, or trees should be coated with honey. When I came to this tree the next morning, there should be beetles, but I don't know if there are shovel insects. Shovel worms like oak trees or broad-leaved trees, and they can look at tree holes after rain. When it rains, insects are all in the tree holes.