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Early Spring Pest Control Measures
During early spring, the temperature is still low, the activity of various forest pests is small, and there are relatively stable hibernation sites. If effective prevention and control measures are taken at this time, it will have a multiplier effect. Specifically, the following five methods of extermination can be used: First, the method of attracting and exterminating insects can use the habit of hibernation of pests under the tree, and can bind the trunk to the trunk to lure it into the grass for overwintering, and then solve the grass and burn it centrally. For lepidopteran larvae such as pine caterpillars, poisonous insects can be poisoned by applying poisonous rings or tying poison cords on the trunks before the pests spring up in the trees. Second, the egg-killing method Some pests, such as caterpillars, gypsy moths, etc., lay their eggs on the surfaces of apple, pear, apricot, pine, poplar, willow and other branches to form an egg ring; the yellow thorns are at the turning point of the branches. The egg is made into a small watermelon-like egg, and some pests are made into small silkworms in the hidden part of the branches and hibernate. For these egg rings, eggs, quail, etc., knives, sticks, iron bars, etc. can be used to chop and chop them to prevent breeding. Third, pruning and pest control methods such as long-lived cattle, leafhoppers and other pests use sharp ovipositors or mouthparts, drilled in rows of small holes in the forest branches in which spawning, and the release of venom to poison the branches of trees Pine tip borer, cone borer, and spot tip borer endangered pine and eucalyptus trees and formed dry shoots; Caulis poplars, poplars and wing beetles, and chestnut beetles harmed and formed worms on branches. Can catch winter, early spring season combined with pruning, cut off insects nest branches, dead branches and insects, brought out of the park concentrated burned. Fourth, scraping skin disinsection method Apple apple borer, pear small spot borer, pear caterpillar, caterpillar moth, juvenile armyworm, red spider, etc., often concealed in the forest branches under the rough skin, skin or cracks in the winter. In winter and spring, old skins or worms can be scraped off with a knife, and then whitened. 5. Pest-killing pests such as peach borer, locust and other pests like to drill into the ground, spawn in weeds or overwinter in the form of earthworms and larvae, and pests such as red spiders and leaf roller moths often hide in the fallen leaves. Grab the soil before the soil is frozen or after the soil is thawed in early spring, and loosen the tree tray, and deeply bury the fallen leaves, stub branches and miscellaneous chapters around the tree tray. Turn the pests to the ground and freeze them to death or die or feed birds. If the water is poured once more, it will have better effects on suffocating overwintering eggs, larvae and aphids.