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A kind of method of releasing Limadida wasps to control Bemisia tabaci

A technology of Liphid wasp and Bemisia tabaci, applied in the field of biological control of agricultural pests, can solve problems such as labor-intensive, cumbersome pupal card production process, and decreased adult eclosion rate

Active Publication Date: 2020-07-28
SHANDONG AGRICULTURAL UNIVERSITY +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There are obvious deficiencies in adopting this technical method. First, due to the forced separation of the brown pupae of Lepidos aphidus, the brown pupae will be injured or killed during the separation process, and the eclosion rate of adults will decrease.
The second is that the production process of the pupa card is cumbersome, which increases the amount of labor, is time-consuming, labor-intensive, and inefficient

Method used

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  • A kind of method of releasing Limadida wasps to control Bemisia tabaci
  • A kind of method of releasing Limadida wasps to control Bemisia tabaci
  • A kind of method of releasing Limadida wasps to control Bemisia tabaci

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] Embodiment 1: 80 mesh insect-proof net cages separate test on Limadida wasps and Bemisia tabaci

[0045] In the early stage, the 60-mesh and 100-mesh insect-proof net cages were used to separate the bemiphid wasps and whitefly. The results showed that the 60-mesh insect-proof net cage had a poor barrier effect on the whitefly; the 100-mesh insect-proof net cage could block the whitefly. It is in the cage, but it also has a certain barrier effect on the Liphid wasp. In order to clarify the separation of the 80-mesh insect-proof net cages for the bees and whiteflies, we carried out the separation experiment of the 80-mesh insect-proof net cages for the bees and whiteflies. Each of the 80-mesh large and small insect-proof gauze cages (70×70×70 cm and 40×40×40 cm) were placed in each of the 5 small sheds in the greenhouse, and 5 treatments were set up and repeated 3 times.

[0046] (1) Handling 1: place the tobacco that has the brown pupae of Lepidos aphidus and the nymph ...

Embodiment 2

[0055] Embodiment 2: Lithium aphid release tool

[0056] According to the separation experiment of 80-mesh insect-proof net cages on Lepidos wasps and Bemisia tabaci, a tool for releasing Lepidos wasps in tobacco fields and vegetable greenhouses was designed.

[0057] The main body of the release tool for Limadidae of the present invention is a release net cage, and the release net cage is composed of 12 pcr tubes connected with 8 tees to form a cuboid skeleton with a size of 25×20×15cm, and 80 meshes are covered around the cuboid skeleton. Insect-proof net (nylon gauze can be used), and an "L"-shaped zipper is provided on one side of the net cage to facilitate the insertion and removal of tobacco leaves.

[0058] When it is used for the release of Liphid wasps in the tobacco field, the release net cage is fixed on two iron rods (the iron rods are used as supporting parts) with four adjustment knobs, and the two iron rods used have a strong impact on the release cage. to the ...

Embodiment 3

[0061] Embodiment 3: Tobacco Field Test

[0062] The test was carried out in the tobacco field of Xiluozhuang Village Experimental Station, Jiayue Town, Zhucheng City. The tobacco plants selected for the test were planted in mid-May, and the varieties were all NC55. The area of ​​each bee-release area in the selected tobacco field is 700㎡ (7m×100m), and the bee release in the tobacco field uses a self-made 80-mesh small mesh cage, and the mesh cage (size is 25×20×15cm), and each cage is placed The number of brown pupae can be determined according to the density of brown pupae on the tobacco leaves, and the net cage tool should be evenly placed in the tobacco field. There were 4 treatments in the experiment, respectively marked as experiment 1, experiment 2, experiment 3, and experiment 4. On June 9, 1,000, 2,000, 4,000, and 8,000 bees were released respectively; each treatment had 3 replicates. At the same time, an area with a similar area was selected as a control, and no be...

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Abstract

The invention discloses a method for preventing and controlling bemisia tabaci by releasing encarsia formosa. The method comprises the following steps: (1) cultivating tobacco seedlings, inoculating bemisia tabaci when the tobacco seedlings grow to have 5-6 pieces of true leaves, feeding the bemisia tabaci by using the tobacco seedlings as host plants, inoculating encarsia formosa when the bemisiatabaci lays eggs and develops to bemisia tabaci nymphs of 2-3 instars, and collecting tobacco leaves with brown pupae when the brown pupae appear 9-10 days after the inoculation of the encarsia formosa; and (2) putting the tobacco leaves with the brown pupae into a releasing net cage, enabling the brown pupae to grow to encarsia formosa adults after 1-2 days, and then releasing the encarsia formosa into a tobacco field and / or a vegetable greenhouse to prevent and control the bemisia tabaci. According to the invention, the releasing net cage is used, so that the process of separating and collecting the encarsia formosa brown pupae is omitted, the encarsia formosa can be released into the field and the vegetable greenhouse timely in a large scale in a key period when the bemisia tabaci comes out, and the technical support is provided for promoting the utilization of the encarsia formosa to control the harm of the bemisia tabaci, reducing the uses of chemical reagents, and producing high-quality green agricultural products.

Description

technical field [0001] The invention relates to the technical field of biological control of agricultural pests, in particular to a method for releasing bemiphid wasps to control Bemisia tabaci. Background technique [0002] Bemisia tabaci (Bemisia tabaci) belongs to Homoptera, Bemisidae, and belongs to the genus Bemisia. First reported in 1889, it was discovered by Gennadius on tobacco in Greece and named as tobacco whitefly (tobacco whitefly). In recent years, the harm of Bemisia tabaci on crops such as vegetables, cotton and tobacco in my country has become increasingly serious, and the pressure on control has been increasing (Tan Yongan et al., 2012; Zhang Zhili, 2000; Zhao Li et al., 2000; Zhou Xiaowei et al., 2012). Bemisia tabaci sucks leaves and young parts of plants such as vegetables and tobacco, sucks juices that affect normal growth and development, and secretes a large amount of honeydew, which induces serious soot pollution and affects photosynthesis. In addi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01G13/00A01K67/033
CPCA01G13/00A01K67/033
Inventor 刘永杰赵文娟董勇浩王凡刘锦李现道张国超刘春菊
Owner SHANDONG AGRICULTURAL UNIVERSITY