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Method for comprehensive prevention and control of plant diseases and insect pests in northern pear gardens

A technology for pest and disease prevention and control, applied in the field of pest control and pest control in northern pear orchards, can solve problems such as pollution of the environment, waste of financial and material resources, and generation of pests and diseases, and achieve the goal of protecting the ecological environment, reducing pesticide pollution, and reducing workload. Effect

Inactive Publication Date: 2014-01-22
CHINA AGRI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In pear orchards where pests and diseases occur more seriously, pesticides are used more than 10 times a year, and chemical pesticides are sprayed almost once a week from May to before fruit harvesting, which not only pollutes the environment, but also wastes financial and material resources. Pests and diseases develop resistance, making pest control increasingly difficult

Method used

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  • Method for comprehensive prevention and control of plant diseases and insect pests in northern pear gardens
  • Method for comprehensive prevention and control of plant diseases and insect pests in northern pear gardens
  • Method for comprehensive prevention and control of plant diseases and insect pests in northern pear gardens

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0050] Example 1. Dynamic comparison of occurrence and quantity of psyllids in Beijing Fengshui pear orchard

[0051] The experimental garden is located in the Pear Garden (Fengshui Pear) in Weishanzhuang, Daxing District, Beijing. Select 4 consecutive rows of pear trees in the pear orchard, with 35 trees in each row, and manage them according to the comprehensive control measures of pesticides 3 times a year (called the experimental group); Management measures were administered (called routine groups) (see Table 1 for details).

[0052] Starting from February every year, 20 pear trees in the experimental row and the conventional row in the pear orchard were randomly checked by the "Z"-shaped sampling method, and 5 pear trees were randomly checked in the four directions of east, south, west and north of each tree, about 50 cm in length. On long shoots, investigate the number of psyllid adults and nymphs on them. Survey every 7 days.

[0053] Table 1 shows that the routine g...

Embodiment 2

[0058] Example 2. Dynamic comparison of the occurrence and quantity of the main pests of Kang's mealybugs in Beijing Fengshui pear orchard

[0059] Starting from May every year, using the "Z"-shaped sampling method, 10 pear trees were selected from the experimental group and the conventional group in the pear orchard, and were randomly checked every 7 days. The survey results show that the incidence of Kang's mealybugs in the 3 drug test trips and the 7 drug routine trips is basically the same, and it has increased in the later period of the test trip. Pedestrians inadvertently brought Kang's mealybugs from other gardens to this garden with the picked fruits ( Figure 5 ). Therefore, while adopting the comprehensive prevention and control technology of applying medicine three times a year, pastoral hygiene should also be paid attention to. Even so, there was no big outbreak of the Kang's mealybug in this garden under the three-drug technique, so this technique is also suitab...

Embodiment 3

[0060] Example 3. Dynamic comparison of occurrence and quantity of pear psyllium, the main pest of Xueqing pear orchard in Beijing

[0061] The experimental garden is located in Shahe Pear Garden (Xueqing Pear) in Daxing District, Beijing. Choose 2 consecutive rows of pear trees in the garden, with 32 plants in each row, and manage them according to the comprehensive prevention and control measures of pesticides 3 times a year (called the experimental group); (referred to as routine group) management measures (see Table 2 for details).

[0062] Starting from February every year, 20 pear trees were randomly checked in the experimental row and the regular row in these two orchards using the "Z"-shaped sampling method, and 5 pear trees were randomly checked in the four directions of east, south, west and north of each tree. The number of adults and nymphs of pear psyllids on a branch about 50 cm long was investigated. Survey frequency, once every 7 days.

[0063] It can be see...

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Abstract

The invention relates to a method for comprehensive prevention and control of plant diseases and insect pests in northern pear gardens. When flower buds of pear trees are just revealed, pesticide is applied for the first time, and the used pesticide is 5-degree lime sulfur. When 90% of flowers of the pear trees fall, the pesticide is applied for the second time, and the used pesticide is 20% acetamiprid powder or 48% chlorpyrifos emulsifiable concentrate. Before young pear fruits are bagged, the pesticide is applied for the third time, and the used pesticide is 5000 times of 10% imidacloprid or 4000 times of 1.8% abamectin emulsifiable concentrate and 1000 times of 70% thiophanate methyl wettable powder or 400-600 times of 70% atomized mancozeb wettable powder. The appropriate pesticide application time and appropriate pesticide are selected according to the plant diseases and insect pests at the stages, and only three-time pesticide application is needed. In addition, natural glass growing and corrugated paper binding on tree trunks in the gardens and the method for the comprehensive prevention and control of the plant diseases and insect pests are combined, the ecological environment is protected, natural enemies of the pear gardens are protected and utilized, and safe pear production is achieved.

Description

technical field [0001] The invention relates to a method for preventing and controlling diseases and insect pests, in particular to a method for preventing and controlling diseases and insect pests in northern pear orchards, in the field of plant protection and environmental protection to ensure fruit safety from the ground. Background technique [0002] Pear tree (Pyrus Linn.) is a plant of the Rosaceae family. It is distributed all over the country in my country and has a long history of cultivation for more than 3,000 years. There are more than 3000 cultivars. Some of these varieties have local characteristics, such as: Hebei Yapear, Dangshansu pear, Shandong Laiyang pear, Guizhou rhubarb pear, etc. [0003] However, the impact of pear tree diseases and insect pests has always restricted the development of the pear industry. The northern pear orchards are mainly harmed by pests such as pear borer, two-spotted spider mite, hawthorn spider mite, pear aphid, and yellow po...

Claims

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Application Information

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IPC IPC(8): A01G13/00A01G17/00
Inventor 刘奇志石旺鹏刘志龙
Owner CHINA AGRI UNIV
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