A kind of method for efficiently trapping and killing Lygus spp. in tea garden

Abstract

The invention discloses a high-efficiency method for trapping and killing green ligus bugs in tea gardens, and belongs to the technical field of biological control of field pests. In this method, the basil seeds and the systemic insecticidal granules against the green Lygus bug are buried around the tea garden or between the tea rows. Water, through cultivation and management, make the basil adult plants bloom in September-October of the year, and use the trapping function of the basil inflorescence to trap and kill the green Lygus; wherein, the systemic insecticidal granule for each hole is ≥ 2g. The method of the invention can block the migration of the green ligus to the tea garden, reduce the population density of the green ligus in the tea garden, reduce the harm of the green ligus to the tea trees, and simultaneously establish a pest control mode based on landscape ecology, and reduce the cost of chemical control pesticides in the tea garden. Usage amount and pesticide environmental pollution.

Description

technical field [0001] The invention belongs to the technical field of biological control of field pests, and in particular relates to a method for efficiently trapping and killing green ligus bugs in tea gardens. Background technique [0002] In recent years, the harm of mirid bugs has been on the rise in my country's tea areas. Adults and nymphs like to eat young tea shoots, seriously affecting the appearance, quality and economic value of tea buds and leaves. The peak population of Lygus spp. in tea gardens is mainly in early spring and autumn, especially causing heavy losses to spring tea production. After the green Lygus feeds on the young buds of tea trees, it will form necrotic spots on the buds and leaves. As the damaged buds and leaves grow, a number of irregular holes will be formed on the leaves, or the leaf margins will be incomplete and broken, and finally "broken leaf madness" will appear. symptom. The green Lygus is small in size and green all over, and like...

AI Technical Summary

Problems solved by technology

[0003] The existing control methods of mirid bugs mainly include chemical agent control, color plate trap control, and sex pheromone trap control; among them, the commonly used chemical drug control method makes mirid bugs gradually develop drug resistance and drug resistance. In order to maintain the control effect, it is necessary to continuously screen new agents for the control of mirid bugs; and the use of chemical agents will kill some beneficial insects and birds, causing damage to the ecological balance; in addition, the residues of chemical agents It will also pose a threat to human health; the color plate trapping method is a physical control method that uses the color tendency of the mirid gnat to color, and this method is green and safe; however, the selectivity of the mirid gnat to a specific color will It varies depending on the population and habitat; therefore, the effect of using color plates to attract is not stable, and sometimes the effect is small; sex attractant is another kind of insect that has obvious attracting effect and has high safety and does not produce resistance. Drug control methods are usually developed by using special volatile components on certain plants. Although sexual attractants have a good attracting effect on insects, their effects are based on the volatility of their active ingredients, so they continue to The validity period is short, and it is easily affected by bad weather such as rain; in addition, the sexual attractant only plays a role in attracting pests, and the specific elimination of pests requires the cooperation of other insect catching devices. The insect catching effect of the insect catching device has a significant impact on its overall effect

[0004] At present, the prevention and control of Lygus in tea gardens mainly relies on chemical control. The migratory habit of Lygus in tea gardens makes its control more difficult. The risk of pesticide residues in dry tea leaves increases, and the ecosystem of tea gardens is polluted and destroyed. Research and development are needed to stabilize and effectively To prevent and control the harm of Lygus miridus, reduce the dependence on pesticides, and ensure the food safety of the people

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