Insect prevention method suitable for crops

A technology for crops and pest control, applied in applications, animal repellents, animal husbandry, etc., can solve the problems of excessive labor, inability to isolate whitefly pests, and difficult selection of mesh number, etc., and achieve the effect of reducing the cost of pest control

Inactive Publication Date: 2013-03-20
BEIJING PLANT PROTECTION STATION
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  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

The disadvantage of physical insect control technology is that it requires a lot of labor, and the selection of the number of meshes is not easy to grasp. If the number of meshes is small, it will not be able to isolate pests such as whitefly. If the number of meshes is large, it will shade the crops and affect the crops in severe cases. normal growth of
Is another defect of covering insect nets due to the need to build arch sheds, which is time-consuming and labor-intensive?

Method used

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  • Insect prevention method suitable for crops
  • Insect prevention method suitable for crops

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] The selection of embodiment 1 insect-proof cotton net and establishment of insect-proof method

[0040]Since 2008, we have started to choose suitable insect-proof cotton nets. Polyester chips are used as raw materials, and polyester filament spunbond hot-rolled non-woven fabric (PET) is obtained through hot-rolling of anti-stick filaments. The non-woven fabric composed of 100% polyester is the insect-proof cotton net. In this embodiment, A and B insect-proof cotton nets are all polyester filament spunbonded hot-rolled nonwoven fabrics, and their specifications are different, and they are all purchased from Yaolong Spunbond Technology Co., Ltd., Shaoxing City, Zhejiang Province. The insect-proof net used in this example (as a control) is an insect-proof net made of commonly used materials in the prior art, which is made of polyethylene and purchased from major agricultural resource markets in Beijing.

[0041] A insect-proof cotton net specification: weight: 20g / m 2 ; ...

Embodiment 2

[0054] Embodiment 2 Application and effect of the method of the present invention (1) (cabbage and broccoli planted in the open air)

[0055] Test time: 2009.

[0056] In 2009, open field cabbage and broccoli were covered with insect-proof cotton nets, and the number of insects per plant compared with different treatments found that no matter it was cabbage or broccoli, the number of pests treated with insect-proof cotton nets was lower than that of insect-proof nets (the material is commonly used in the prior art. PET insect-proof net, and need to build a shed) treatment, but the difference is not significant. Compared with the control (maybe treated), the population reduction rates of Plutella xylostella on cabbage and broccoli were 90.5% and 82.5% respectively; the population reduction rates of Pieris rapae were 69.2% and 85.7%; the population reduction rates of aphids were 91.8% %, 90.6%, the population reduction rate of beet armyworm is 83.3%, 80% respectively, and table...

Embodiment 3

[0060] Embodiment 3 Application and effect of the method of the present invention (2) (lettuce grown in the open air)

[0061] Test time: 2010.

[0062] Use insect-proof cotton nets on the lettuce planted in the open field (after planting, at the slow seedling stage), and the two groups of treatments are respectively: Test group: cover insect-proof cotton nets (using the A insect-proof cotton nets of Example 1, see Example 1 for the covering method) ; Control group: cover the commonly used insect-proof nets at present, and the covering method of the insect-proof nets needs to build an arch shed.

[0063] Planting period ends, harvests stem lettuce, and measures plant height, weight, the result shows: the stem lettuce that insect-proof cotton net handles than the insect-proof net insect prevention method handles stem lettuce average plant height increases by 24.5%, and the weight gain is 13.3%, indicating that The insect-proof cotton net has a better growth effect.

[0064] T...

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Abstract

The invention provides an insect prevention method suitable for crops. Dacron filament spunbond hot-rolled non-woven fabrics are used as insect prevention cotton-fleece and fixed on the crops, and a space needed by the crops to grow is reserved. According to the insect prevention method suitable for the crops, insect attack of the crops can be effectively controlled in the period of crop cultivation, and the reduction amount of insect population reaches more than 80% in average. The insect prevention method suitable for the crops is low in cost, convenient to operate, free of pupation to environment and side effects on growth of the crops, capable of effectively improving a crop yield and suitable for popularization and utilization.

Description

technical field [0001] The invention relates to the field of crop protection, in particular to a method for preventing pests of crops. Background technique [0002] Pests are the enemy of human beings engaged in agricultural production. According to statistics, there are at least 6,000 kinds of pests and diseases that damage crops. The annual grain output due to insect pests in the world reaches 14% to 16%. The annual economic losses caused by insect pests in my country reach several With tens of billions of RMB, the prevention and control of diseases and insect pests has become the most critical technical link in agricultural production. At present, the control of crop pests at home and abroad mainly includes chemical pesticide control and physical control. Among them, chemical pesticides mainly include organophosphorus, carbamate, pyrethroids, organochlorine, organic nitrogen, etc.; Measures similar to the present invention in the control technology are insect nets. [00...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01M29/34
Inventor 岳瑾郭喜红尹哲乔岩董杰车晋滇
Owner BEIJING PLANT PROTECTION STATION
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