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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 environmental pollution, waste of financial and material resources, and generation of pests and diseases, and achieve the goal of reducing workload, protecting the ecological environment, and reducing pesticide pollution. Effect

Inactive Publication Date: 2015-03-11
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 the number of occurrences of psyllids in Fengshui pear orchard in Beijing

[0051] The experimental garden is located in Weishanzhuang Pear Garden (Fengshui Pear) in 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 comprehensive pesticide control measures 3 times throughout the year (called the test group); the rest of the pear tree rows are treated as usual throughout the year (7 times of chemical pesticides per year) Management measures for management (called routine group) (see Table 1 for details).

[0052] Starting from February every year, 20 pear trees were randomly inspected in the experimental row and the conventional row in the pear orchard using the "Z" sampling method, and 5 pear trees of about 50 cm were randomly inspected in the four directions of east, south, west and north of each tree. On long branches, investigate the number o...

Embodiment 2

[0058] Example 2. Dynamic comparison of the number of occurrences of the main pest mealybug konshii in Fengshui pear orchard in Beijing

[0059] From May every year, adopt the "Z" shape sampling method, select 10 pear trees in the experimental group and the routine group in the pear orchard, and check once every 7 days. The survey results show that the occurrence of P. konshii in the 3 times of drug testing and 7 times of drug routine is basically the same, and it increases in the later stage of the test. After our detailed investigation and research, the reason may be related to the fact that the test line is close to the road. Passers-by inadvertently brought P. konshii from other gardens to this garden along with the fruits they picked ( Figure 5 ). Therefore, while adopting the comprehensive prevention and control technology of injecting medicine 3 times a year, rural hygiene should also be paid attention to. Even so, no major outbreaks of P. konshii in this garden have...

Embodiment 3

[0060] Example 3. Dynamic comparison of the number of occurrences of the main pest Psyllid psylla in Beijing Xueqing pear orchard

[0061] The experimental garden is located in the Shahe Pear Garden (Xueqingli) in Daxing District, Beijing. Select 2 consecutive rows of pear trees in the garden, with 32 trees in each row, and manage them according to comprehensive pesticide control measures 3 times throughout the year (called the test group); the rest of the pear tree rows will be treated as usual throughout the year (10 times of chemical pesticides per year) (called routine group) management measures (see Table 2 for details).

[0062] Starting from February every year, 20 pear trees were randomly inspected in the test row and the conventional row in the two orchards using the "Z" sampling method, and 5 pear trees were randomly inspected in the four directions of east, south, west and north of each plant. A branch about 50 cm long was used to investigate the number of pear psy...

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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 plant diseases and insect pests, in particular to a method for preventing and controlling plant 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 genus Pyrus in the Rosaceae. It is distributed all over the country in my country and has a long cultivation history of more than 3,000 years. There are more than 3000 cultivars. Some of these varieties have local characteristics, such as: Hebei Yali, Dangshansu pear, Shandong Laiyang pear, Guizhou big yellow pear, etc. [0003] However, the impact of pear tree diseases and insect pests has always restricted the industrial development of pears. In northern pear orchards, there are mainly pests such as pear borer, two-spotted spider mite, hawthorn spider mite, pear aphi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01G13/00A01G17/00
Inventor 刘奇志田宝良石旺鹏刘志龙周海鹰王洁雯路晓楠
Owner CHINA AGRI UNIV
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