Trapping apparatus for evaluating prey ability of rice planthopper natural enemy and application method thereof

A technology of rice planthoppers and natural enemies, applied in the field of devices for measuring and evaluating the predatory natural enemies of rice planthoppers, can solve the problems of increased research work, uncertain number of attacks, and difficulty in direct observation and investigation, and achieve accurate measurement and evaluation , Strong operability and convenient operation

Inactive Publication Date: 2007-02-28
ZHEJIANG ACADEMY OF AGRICULTURE SCIENCES
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  • Summary
  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, since parasitic natural enemies and predatory natural enemies can attack eggs or rice planthoppers respectively, and the number of their attacks cannot be determined, experiments often cannot quantitatively distinguish the respective roles of parasitic natural enemies and predatory natural enemies
This is mainly because predatory natural enemies, unlike parasitic natural enemies, seldom leave traces of predation, making it difficult to directly observe and investigate; secondly, rice planthoppers are highly active, and it is difficult to directly use them as prey to trap predatory natural enemies in the field In addition, there are many kinds of predatory natural enemies of rice planthoppers, which must be fully captured to be representative. These factors increase the difficulty of the research work of measuring and evaluating the predatory natural enemies of rice planthoppers

Method used

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  • Trapping apparatus for evaluating prey ability of rice planthopper natural enemy and application method thereof

Examples

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Effect test

Embodiment 1

[0021] Embodiment 1: (a kind of trapping device for evaluating the predation ability of rice planthopper natural enemies with 4 water cups)

[0022] A trapping device for evaluating the predation ability of natural enemies of rice planthoppers. Firstly, a column 1 is vertically inserted into the soil of a test rice field; Form a horizontal layer frame, pass the column 1 through the fixing ring 2, and fix the layer frame with the fixing bolt 3 at a distance of 5-10 cm from the irrigation water surface of the paddy field, as the lower layer frame; use the same material and method to assemble Another layer of frame is fixed on the top of the column 1 with the same height as the leaf crown of the rice plant, as the upper layer frame; a petri dish 6 and 4 water cups 8 are respectively placed in the petri dish ring 5 and water cup ring 7, and the petri dish 6 and the upper mouth of the water cup 8 are on the same level; Finally, a grid is set up on the periphery of the culture dish ...

Embodiment 2

[0023] Embodiment 2: (a kind of trapping device for evaluating the predation ability of rice planthopper natural enemies with 2 water cups)

[0024] In the assembly, except that two water cup rings 7 and two water cups 8 are used, the rest of the materials and methods are the same as in Example 1.

Embodiment 3

[0025] Embodiment 3: (A kind of application method of evaluating the predation ability trapping device of rice planthopper natural enemy)

[0026] The application method proceeds in the following steps:

[0027] (1) Standardized feeding of Drosophila, as a substitute prey for rice planthoppers, with ripe bananas raised in glass test tubes with a diameter of 2.5cm; adding or replacing an appropriate amount of feed every 3 days, until pupation, can be collected as a substitute prey ; After the emergence of the excess fruit fly pupae, the adults are regularly transferred to the empty test tube for mating and laying eggs; such continuous subculture.

[0028] (2) put half depth of wet soil in the petri dish 6 with a diameter of 9cm, to keep the appropriate humidity in the dish, then cover the filter paper on the soil, and use 10 fruit fly pupae that pupate in 6 hours The brush is evenly placed on the filter paper, and then the petri dish 6 is placed in the petri dish ring 5; the p...

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Abstract

The invention discloses a trapping device and specific application method to estimate trapping ability for natural enemy of rice louse in the biological prevention construction studying technological domain of crop pest natural enemy, which comprises the following parts: column (1), fixing coil (2), fixing bolt (3), transverse column (4), culture plate ring (5), culture plate (6), drinking cup (7), drinking cup (8) and screen (9).

Description

technical field [0001] The invention relates to the technical field of research on biological control facilities for natural enemies of crop pests, in particular to a device for measuring and evaluating the predation ability of rice planthopper predatory natural enemies and an application method thereof. Background technique [0002] There are a large number of parasitic and predatory natural enemies in natural ecosystems and farmland ecosystems, and their important role in controlling the development of pest populations has been widely accepted. Among them, parasitic natural enemies leave dead eggs, shells and other residues after their action, which are easy to observe and count, so the research is relatively clear, while pests generally do not leave traces after being preyed by predatory natural enemies, which is difficult to observe and count. It is an effective measurement tool, so the research is not deep enough so far. Although the predation...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01M1/00A01M1/10A01G13/10
Inventor 吕仲贤俞晓平徐红星香广伦胡萃
Owner ZHEJIANG ACADEMY OF AGRICULTURE SCIENCES
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