Method for preventing and controlling brown planthopper by using harpactor fuscipes

A technology for hunting stink bugs and brown planthoppers, which is applied in the field of biological control of harmful organisms, can solve problems such as environmental pollution, endanger human health, cannot reduce planthoppers, etc. Effect

Active Publication Date: 2017-10-24
ZHONGKAI UNIV OF AGRI & ENG +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The unreasonable use of a large number of chemical agents not only cannot reduce the occurrence of planthopper

Method used

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  • Method for preventing and controlling brown planthopper by using harpactor fuscipes
  • Method for preventing and controlling brown planthopper by using harpactor fuscipes
  • Method for preventing and controlling brown planthopper by using harpactor fuscipes

Examples

Experimental program
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Effect test

Embodiment 1

[0023] Present embodiment 1 is the breeding method of the red-coloured stinkbug, and its steps are as follows:

[0024] (1) Place fresh green tobacco leaves in a plastic box with a bottom diameter of 12cm and a height of 5cm. The tobacco leaves can touch the periphery of the plastic box. The top of the box has air holes;

[0025] (2) placing the aged nymphs of Tenebrio molitor and the mated female adults of the red-colored stinkbug on the tobacco leaves, and the ratio of the number of the female adults of the red-colored stinkbug after the mating to the advanced age nymphs of Tenebrio molitor is 1:3~ 5;

[0026] (3) Place the plastic box in an artificial climate box with a temperature of 28±2°C and a relative humidity of 60±15%, and the light-to-dark ratio L:D=14h:10h;

[0027] (4) Check whether the female adult of the red-colored stinkbug is laying eggs every day, after laying eggs, the female adult of the red-colored stinkbug is taken out, and can mate with other male adul...

Embodiment 2

[0038] Present embodiment 2 is the predation ability test of the red-coloured stinkbug, and its steps are as follows:

[0039] 1. Plant rice in the tillering stage in a plastic bucket with a diameter of 25 cm, use evenly perforated organic cellophane to make enclosures, and use gauze and rubber bands to add a cover to prevent the test insects from escaping;

[0040] II. Place the plastic barrel in a well-ventilated and well-lit outdoor environment with an average daily temperature of 25±2°C;

[0041] III. Before the test, the 3rd instar nymph, the 4th instar nymph, the 5th instar nymph and the female adult were satiated for 24 hours, then starved for 48 hours to test;

[0042] IV. Inject 30 3 age brown planthoppers on potted rice plants and raise them. When they grow up to 4 ages, put the 3 age nymphs and 4 age nymphs of the red-coloured stinkbug after the processing of step III in the plastic bucket respectively. Instar nymphs, 5th instar nymphs and female adults.

[0043] ...

Embodiment 3

[0048] Present embodiment 3 is the method for utilizing the red-coloured stinkbug to prevent and control brown planthopper, and the steps are as follows:

[0049] Step 1, when the target paddy field is at the tillering stage or the heading stage, use the five-point sampling method to sample the brown planthopper in the target paddy field and identify its age;

[0050]Step 2, when it is identified that the age of the brown planthopper is 2-3 ages, then use the survey sampling method to investigate and count the population density of the 2-3 ages of the brown planthopper in the target paddy field, the target paddy field of this embodiment 3 5m 2 In the plot, the parallel jumping method was used to survey the target rice fields. Each point investigated 2 families, and a total of 30 rice families were investigated. Use a white porcelain plate to brush a layer of engine oil and place it obliquely on the middle and lower part of the rice, and quickly pat the rice plants twice. , an...

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Abstract

The invention discloses a method for preventing and controlling brown planthopper by using harpactor fuscipes. The method comprises the following steps: step one, sampling the brown planthopper in a target rice field by using a five-point sampling method and identifying the age of the brown planthopper; step two, counting the density of the brown planthopper at the age of 2-3 in the target rice field by using an investigation and sampling method; and step three, prevention and control operation: draining accumulated water of the target rice field, and releasing nymphs at the age of 4 and nymphs at the age of 5 of the harpactor fuscipes at single times, wherein the number ratio of the nymphs at the age of 4 and the nymphs at the age of 5 of the harpactor fuscipes to the brown planthopper at the age of 2-3 is 2: 1.5-2: 60. The user amount of chemical pesticide on rice is reduced, pesticide residue of the rice field is reduced, the ecological environment of a farmland is protected, and reliable technical guarantee is provided for food safety.

Description

technical field [0001] The invention relates to the field of biological control of harmful organisms, in particular to a method for controlling brown planthoppers by using the red-coloured stinkbug. Background technique [0002] Brown planthopper [Nalaparvata lugens] belongs to the Homoptera planthopper family, also known as brown planthopper, is one of the important pests of rice. There have been many reports at home and abroad on the distribution and damage of brown planthoppers in the world, the law of migration, the mechanism of re-emergence, and the research on the function of natural enemies. For nearly half a century, brown rice louse has occurred in a wide range, large area and high outbreak frequency, often causing disasters, becoming an important pest of rice in my country, and causing serious economic losses at the same time. At present, the control of rice planthoppers is still mainly based on the selection of rice resistant varieties and the combination of chem...

Claims

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Application Information

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IPC IPC(8): A01G16/00A01G13/00A01K67/033A01G22/22
CPCA01G13/00A01K67/033
Inventor 刘光华邓海滨张鑫甘泳红
Owner ZHONGKAI UNIV OF AGRI & ENG
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