Pollution-free preventing and controlling method for Bradysia odoriphaga

Abstract

The invention discloses a pollution-free preventing and controlling method for Bradysia odoriphaga. The specific implementation method comprises the following steps: ditching ditches at both sides of leeks roots as the ditching depth is to the extent of seeing the roots, uniformly scattering plant ash in the ditches intensively, and overlaying soil for covering completely; overlaying a plastic film on ridge surface of leeks for 3-6 days; scattering a layer of the plant ash on the ridge surface after opening the plastic film; and cycling repeatedly. As the plant ash can effectively prevent and control the Bradysia odoriphaga and is a good phosphorus and potassic fertilizer, the plant ash can effectively prevent Bradysia odoriphaga adults from laying eggs when a layer of the plant ash is scattered on the ridge surface and has the effects of exterminating the Bradysia odoriphaga, sterilizing, increasing production, and the like. In addition, because full-bodied flavor of leeks is floated in the sky of leek ridges and can attract a large number of adults to lay eggs, the plastic film is overlaid on the ridge surface of the leeks immediately after the outdoor leeks are harvested, and the film is opened when wound of the leeks is healed and the smell disappears so that reproduction of the Bradysia odoriphaga can be prevented and controlled. The pollution-free preventing and controlling method has the characteristics of good effect, no pesticide pollution and no environmental pollution.

Description

technical field [0001] The invention relates to a leek cultivation technique, in particular to a pollution-free control method for leek maggots. Background technique [0002] Leek root maggots are referred to as chive maggots for short, and the adult scientific name is tardy-eyed fungus, alias yellow-footed fungus (a small black mosquito), which belongs to the family Diptera. The larvae become chive maggots, and the larvae often gather underground in leeks to harm leeks. , Drilling roots, pseudostems and bulbs. After the leek is harmed, the young stems will rot, the stems and leaves above the ground will turn yellow, wilt and droop, and in severe cases, the whole pile of leeks will die. [0003] The traditional prevention and control method of leek maggot is to use highly toxic pesticides, that is, to spray phorate or topdress carbofuran when leek maggot damage occurs in the leek cultivation field. Although it can receive a certain control effect, it has caused serious pol...

AI Technical Summary

Problems solved by technology

Although it can receive a certain control effect, it has caused serious pollution to leek products, and long-term consumption will cause major damage to health