CN113142003A

CN113142003A - Novel method for controlling lily underground pests

Info

Publication number: CN113142003A
Application number: CN202010012561.9A
Authority: CN
Inventors: 杨迎东; 王伟东; 胡新颖; 白一光; 李雪艳; 冯秀丽
Original assignee: Liaoning Academy of Agricultural Sciences
Current assignee: Liaoning Academy of Agricultural Sciences
Priority date: 2020-01-07
Filing date: 2020-01-07
Publication date: 2021-07-23

Abstract

The invention relates to a biological control method for flower pests, in particular to a novel method for controlling lily underground pests. In the high-incidence period of lily pests, the bed surface is firstly wetted by clear water, pathogenic nematodes are irrigated in the clear water according to the square meter quantity of 1 hundred million/667, the irrigation is carried out once every 2 weeks and is continuously irrigated for 3 times, and the bed surface is kept moist after the nematodes are applied. The method is simple to operate, green and environment-friendly, the damage of soil insects to lily bulbs is effectively prevented, the control effect of root maggot and root mites of the soil insects is over 80 percent, and the fresh weight ratio of the bulbs is improved by over 20 percent compared with the contrast. The invention relates to a method for preventing and controlling soil insects, which adopts a biological prevention and control technology and has the characteristics of controllable conditions, simple operation, no pollution, environmental protection, good prevention and control effect and the like.

Description

Novel method for controlling lily underground pests

Technical Field

The invention relates to a flower pest control technology, in particular to a novel method for controlling lily underground pests.

Background

Lily is an important flower and economic crop in the world. For a long time, the problem of plant diseases and insect pests is one of the main problems troubling lily production. The synthetic chemical insecticide and bactericide and the biological insecticide and bactericide cannot fundamentally and effectively solve the problem of plant diseases and insect pests including lily at present due to the harmfulness to the ecological environment and the like. The conventional breeding for resisting diseases and insect pests has long period, low efficiency and limited resistance resources, so that the urgent requirements of current practical production are difficult to meet.

Disclosure of Invention

The invention aims to provide a novel method for controlling lily underground pests.

In order to achieve the purpose, the invention adopts the technical scheme that:

a new method for controlling lily underground pests comprises the following steps: 1) placing the lily bulbs taken out of the refrigerator in a shading environment at 10-15 ℃ for 2-3 days for later use; 2) then mixing perlite and turfy soil according to the volume ratio of 1: 2, mixing, uniformly stirring, and then sterilizing the substrate by using the Xin, wherein the humidity of the treated substrate is kept between 40 and 50 percent; 3) making the substrate into a table bed with the width of 1.2m and the height of 10-15cm, and then planting the prepared lily bulbs in the table bed; 4) wetting the table bed with clear water, wherein the humidity is about 60% -70%; in the high-incidence period of underground pests, the pathogenic nematodes are placed in clear water and irrigated according to the dosage of 1 hundred million heads per 667 square meter, the irrigation is carried out once every 2 weeks for 3 times continuously, and the bed surface is kept moist after the nematodes are applied.

Compared with the prior art, the invention has the advantages that:

the method effectively prevents the underground pests from damaging lily bulbs, has the control effect of root maggot and root mites of the underground pests of more than 80 percent, and improves the fresh weight of the bulbs by more than 20 percent compared with the control.

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following examples.

The specific implementation mode is as follows:

example 1:

a novel method for controlling lily underground pests comprises the following specific steps:

1) in the early 5 months, in the high-incidence period of lily underground pests, selecting lily bulbs which break dormancy through low-temperature treatment, have no obvious scab on the surface, are fresh and full, compact and complete in scales and have more stout main roots of a basal disc, placing the lily bulbs in a shading environment at about 10 ℃ for unfreezing for 1-2 days, then placing the lily bulbs in prepared disinfectant for disinfection treatment, and airing the lily bulbs for later use;

2) mixing perlite and turfy soil in a volume ratio of 1: 2, uniformly stirring, and then sterilizing by using the Xin, wherein the humidity of the culture medium is kept between 40 and 50 percent;

3) making the treated culture medium into a culture table bed with the width of 1.2m and the height of 10-15cm, planting the treated lily bulbs in the table bed, determining the culture distance among the bulbs according to the size of the bulbs, and covering the bulbs with the medium;

4) wetting the fixed planting bed with clear water, wherein the humidity is approximately 60-70%, putting pathogenic nematodes into the clear water, irrigating the bed once every 2 weeks for 3 times continuously according to 1 hundred million heads per 667 square meter, keeping the bed surface moist after the nematodes are applied, regularly observing the growth condition of lily plants, and investigating the experimental results.

Compared with the contrast, when the lily seedball planted by the method is harvested, the fresh weight of the seedball and the incidence rate of underground pests are respectively 20 percent and 80 percent higher than the contrast.

The method has the characteristics of controllable conditions, simple operation, low cost, simplicity, convenience, feasibility, greenness, no pollution and the like.

Claims

1. A novel method for controlling lily subterranean pests, characterized in that:

1) thawing lily bulbs taken out of a refrigeration house for field planting in a shading environment at 10-15 ℃ for 2-3 days;

2) mixing perlite and turfy soil in proportion to serve as a culture medium, and keeping the humidity of the culture medium to be 40% -50% after the culture medium is disinfected for later use;

3) making the substrate into a bed for cultivation, and planting the prepared lily bulbs on the bed;

4) wetting the seedbed surface with clear water, wherein the humidity is about 60-70%, putting pathogenic nematodes into the clear water, irrigating the nematode per 1 hundred million heads per 667 square meter for 3 times per 2 weeks, and keeping the seedbed surface moist after the nematode is applied.

2. A novel method for controlling lily subterranean pests according to claim 1, characterized in that: the lily bulbs in the step 1) are healthy lily bulbs or scale bulbs which are subjected to low-temperature treatment to break dormancy and have no obvious scabs on the surface, and the sizes of the bulbs are not strictly regulated.

3. A novel method for controlling lily subterranean pests according to claim 1, characterized in that: in the step 2), the volume of the perlite and the turfy soil is 1: 2, mixing and uniformly stirring, and sterilizing the substrate by using the Xin.

4. The novel technique for controlling lily soil insects as claimed in claim 1, wherein: the size of the table bed in the step 3) is 1.2m in width and 10-15cm in height.

5. A novel method for controlling lily subterranean pests according to claim 1, characterized in that: the release time of the pathogenic nematodes in the step 4) is 5 days old underground lily pest high-incidence time.