Banker plant system for preventing and curing rice leaf folders and rice stem borers

A carrier plant system, rice leaf roller technology, applied in plant protection, botanical equipment and methods, applications, etc., can solve the problems of excessive pesticide residues in rice, excessive use of chemical pesticides, and ecological imbalance in rice fields, etc. The effect of wide range, reducing borer damage, and easy cultivation and management

Inactive Publication Date: 2015-01-07
ZHEJIANG ACADEMY OF AGRICULTURE SCIENCES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Aiming at the existing problems in the prevention and control of rice leaf roller and rice borer, the present invention provides a carrier plant system for preventing and controlling rice leaf roller and rice borer, the purpose of which is to solve the existing problems of rice leaf roller and rice borer. There are many serious problems such as excessive use of chemical pesticides for borer contro...

Method used

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  • Banker plant system for preventing and curing rice leaf folders and rice stem borers
  • Banker plant system for preventing and curing rice leaf folders and rice stem borers
  • Banker plant system for preventing and curing rice leaf folders and rice stem borers

Examples

Experimental program
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Effect test

Embodiment 1

[0032] Example 1 The vetiver at the edge of the paddy field traps the oviposition and the dynamics of the occurrence of the large borer

[0033] The trials were held in Jinhua and Yinzhou, Zhejiang. During the rice growing season, the number and occurrence dynamics of the eggs of Borer spp. planted on vetiver at the edge of the paddy field were investigated. From the end of April to the end of October, surveys are conducted every 10 days. The aboveground part of vetiver was cut with a sharp knife, and the number of vetiver eggs in the leaf sheaths of each clump was counted, and 10 clumps were investigated each time.

[0034] The results showed that at the end of April, the vetiver eggs reached a high number, with more than 200 eggs per clump, and the highest in May-June, with 300-900 eggs per clump. - In August and October, each clump can also reach more than 100 grains.

[0035] In conclusion, high levels of Borer eggs were maintained on vetiver throughout the rice product...

Embodiment 2

[0036] Example 2 Construction of carrier plant system

[0037] Vetiver is planted on the edge of the paddy field or on the field ridge. Plant 10-50 clumps of vetiver per mu of rice. The number of tillers of vetiver can reach tens or even hundreds. It is best to plant vetiver on the ridges around the paddy field. After the vetiver grass is planted on the edge of the rice field, at the end of April and early May of the following year, when the overwintering adults of the vetiver are laying eggs, bee cards are placed on the edge of the vetiver grass, and Trichogramma, Trichogramma rice borer and Trichogramma borer are artificially inoculated. One or more types of bee can be combined, but Trichogramma rice borer is the dominant species, and 1-2 bee cards per 6 clumps of vetiver are artificially inoculated twice in a row, with an interval of 5-10 days between the two times. In this way, the carrier plant system for the control of rice leaf roller and rice borer is completed. The c...

Embodiment 3

[0038] Example 3 The parasitism rate of vetiver eggs and the population dynamics of Trichogramma in the rice field edge vetiver carrier plant system

[0039] During May-October 2013, a survey was conducted on the parasitism rate of Borer moth and the population dynamics of Trichogramma in Yinzhou, Ningbo. At the end of April and the first ten days of May, bee cards were placed on the side of the vetiver twice to catch the bees. The bee species was Trichogramma oryzae, and sampling began in mid-May. The specific method is to cut the above-ground part of vetiver in Qini, collect the eggs of the vetiver and place them in a petri dish, count the emergent Trichogramma and unparasitized eggs, calculate the parasitism rate, and count the Trichogramma on each clump of vetiver amount, 5 clumps were investigated each time, and no Trichogramma was taken as the control.

[0040] The results showed that the parasitism rate of vetiver eggs on vetiver grass after inoculation was 10.2-67.39%...

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Abstract

The invention discloses a banker plant system for preventing and curing rice leaf folders and rice stem borers. The banker plant system comprises three portions, namely, (1) a vector plant, (2) replacement hosts and (3) a parasitic wasps. The vector plant is vetiver grass belongs to the grass family; the vetiver grass is a luring plant of borers (pink rice borers and the rice stem borers); the replacement hosts are the pink rice borers and the rice stem borers laying eggs in the vetiver grass; the pink rice borers and the rice stem borers are continuously lured to the vetiver grass to lay eggs in a rice growing season to provide hosts for the parasitic wasps; the parasitic wasps are egg parasitic wasps such as rice borer trichogramma and yellow borer trichogramma; the vetiver grass is planted at rice field edges or ridges; 10 to 50 bundles of vetiver grass is planted in every mu of rice field in a dispersion or gathering mode and the bundle distance is from 2m to 3m. The banker plant system for preventing and curing the rice leaf folders and the rice stem borers continuously breeds the parasitic wasps for the rice leaf folders and the rice stem borers (the pink rice borers and the rice stem borers), effectively improves the biological preventing and curing effect, reduces 2 to 3 times of chemical pesticide utilization in one season, is long in acting time, simple and easy to operate and strong in practicability.

Description

technical field [0001] The invention relates to the technical field of biological control of crop pests, in particular to a carrier plant system for rice leaf rollers and rice stem borers. Background technique [0002] The carrier plant system (banker plant system) is a recently developed new biological control technology, also known as the open-rearing system (open-rearing system), mainly including carrier plants (banker plants), alternative food (alternative food) and beneficial Biological (beneficial organisms) three elements, a complete carrier plant system includes at least two of them. Among them, the carrier plant is the most important element, which is generally a non-target crop or a wild plant, but it can also be a mixture of several plants. It is mainly used to raise alternative hosts or prey to provide food resources to beneficial organisms, or the carrier plant itself is directly used to raise beneficial organisms (such as predatory natural enemies). [0003] ...

Claims

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Application Information

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IPC IPC(8): A01G13/10
CPCA01G13/10
Inventor 郑许松朱平阳刘桂良王国荣张发成吕仲贤徐红星田俊策杨亚军鲁艳辉
Owner ZHEJIANG ACADEMY OF AGRICULTURE SCIENCES
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