A method for preventing and controlling molluscs in the cultivation process of dendrobium candidum

Abstract

Disclosed is a method for preventing and controlling mollusc in the process of dendrobium officinale cultivation. The method is characterized by including the steps of seedbed setup, insecticidal powder preparation and pest prevention around a planting field. All mollusc like snails and earthworms can be stopped from crawling onto a seedbed 100% within 1-20 days by placing 32-40g of insecticidal powder in a tray, 90% within 40-60 days, 85% within 60-80 days and 75% within 80-100 days; multiple experiment results show that more than 95% of earthworms can be controlled by replacing quicklime within 50 days; the earthworms and the snails die due to dehydration when encountering alkali, so that the mollusc is stopped from crawling onto the seedbed mainly according to characteristics of the mollusc; compared with conventional methods, the method has the advantages that 65% of planting cost is saved, large-area gnawing of dendrobium officinale by the mollusc is prevented, insecticide consumption is lowered, and yield of dendrobium officinale is increased.

Description

Technical field [0001] The invention relates to the protection of agriculture and plants to prevent animals, birds or other harmful animals from harming plants, especially a method for preventing and controlling molluscs during the cultivation of Dendrobium officinale. Background technique [0002] Dendrobium officinale is a traditional and precious Chinese medicinal material in my country, ranking first among the "Nine Great Immortals of China". Before the 1990s, Dendrobium officinale mainly relied on wild resources. Due to the exhaustion of wild resources, the State Council listed it as a national key protected plant in 1987. At the end of the last century, Zhejiang, the neighboring province, took the lead in breaking through technologies such as tissue culture and facility cultivation of Dendrobium candidum. Since the beginning of the new century, the implementation of the strategy of large-scale health industry has caused a "spout-like" increase in the planting area. [0003] Du...

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Problems solved by technology

[0003] Due to the long planting cycle of Dendrobium candidum, it usually takes about two years to harvest after transplanting. The harvesting cycle is long and the cycle is harvested. Generally, it can be harvested for about five years, so the management of Dendrobium candidum after transplanting is particularly important. ; During the cultivation process of Dendrobium candidum, if the management is not good, large-scale insect damage will often occur, resulting in a large area of ​​production reduction or even no harvest of Dendrobium candidum. More suitable for the growth and reproduction of molluscs such as snails, slugs, slugs (commonly known as slugs), snails, slugs, slugs (commonly known as slugs) like to bite the leaf buds, flower buds, flowers and exposed roots of Dendrobium officinale, seriously affecting its Growth, the white gum left on the ground when they crawled is also unfavorable to the growth of Dendrobium candidum. Once the insect infestation occurs, it is artificially caught at night and early in the morning, or it is lured and killed with cabbage leaves dipped in sucrose solution or with bran. Trichlorfon is sprinkled in places where snails and slugs often appear, and the greenhouse is isolated with insect-proof nets. Earthworms mainly damage the sweet roots of Dendrobium officinale

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