Method for controlling tobacco field underground pests

Abstract

The invention discloses a method for controlling tobacco field underground pests. The method is characterized in that zingerone is sprayed or placed in a well pit. Zingerone is sourced from zingiberaceae ginger rhizomes, and is a main component providing the spicy ginger flavor. Zingerone has a bactericide effect, and has contact activity against slugs. Slugs and small black cutworms are pests sensitive to smells. When zingerone is diluted and sprayed in the well pit, the strong smell can rapidly repel slugs and small black cutworms. A well pit depth is commonly approximately 20cm. After transplanting, well pit bottom temperature is commonly approximately 20 DEG C. In a relatively closed environment, zingerone degradation is slow under a temperature of approximately 20 DEG C, such that the smell is still strong after 1 month. The degradation of sustained-release preparations of zingerone is even slower, such that production requirements can be satisfied. The action time is long, and repelling effect is significant. The preparation is effective against both slugs and small black cutworms. The preparation is a pure natural biological preparation, such that the risk of pesticide residue is avoided.

Description

technical field [0001] The invention relates to a method for preventing and controlling underground pests in tobacco fields, in particular to a method for controlling underground pests in tobacco fields with zingerone. Background technique [0002] Guizhou is the second largest smoking area in my country, with a relatively large tobacco planting area. During the production season, tobacco will be infested by various diseases and insect pests. After transplanting tobacco to the cluster stage, underground pests are the main damage factors. Among them, wild slugs and Cutworms are the two most serious underground pests in flue-cured tobacco production in Guizhou. [0003] Wild slugs, also known as snails without snails, are commonly known as slugs, sticky worms, dry snails, and soft snails. They are distributed in tropical, subtropical, and temperate regions. Wild slugs like dark, humid, and humus-rich environments. The optimum temperature for their activities is It is a common ...

AI Technical Summary

Problems solved by technology

At present, the most common transplanting method of tobacco in Guizhou is cellar transplanting, which can provide suitable temperature and humidity for seedlings, and promote early growth and rapid growth of tobacco; but at the same time, it also provides the most favorable temperature for the growth of underground pests. Humidity and light conditions often lead to the occurrence of wild slugs and cutworms after transplanting, seriously endangering the growth of tobacco, and have become one of the main factors that harm the growth of tobacco leaves in Guizhou

[0006] At present, the commonly used drugs for preventing and controlling slugs in production are paraacetaldehyde drugs, and the drugs for preventing and controlling small cutworms are mainly insecticides such as dimethoxazole. Although the effect is remarkable, it often requires multiple applications, and the drugs can only It works only after the pests come into contact. In the years when the pests are more harmful, the insecticidal effect has certain limitations, and there is a problem of pesticide residue after repeated use.