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Pest and weed integrated control method for seedling-stage summer maize

A technology for summer corn and seedling stage is applied in the field of integrated pest and weed control in summer corn seedling stage, which can solve the problems of weakening insecticidal effect and weeding effect, wasting manpower, material and financial resources, unable to achieve simultaneous control and the like, and achieves pest control. The weeding effect is remarkable, the yield is increased, and the manpower is saved.

Inactive Publication Date: 2015-11-18
LUOYANG ACADEMY OF AGRI & FORESTRY SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If insecticides and herbicides are used alone, the application time interval is too long, and the effect of simultaneous control cannot be achieved, and multiple application of pesticides wastes manpower, material and financial resources, while traditional organophosphorus insecticides are acidic. When used in combination with weakly alkaline herbicides, a neutralization reaction will occur during the compounding process, which will weaken the insecticidal and herbicidal effects at the same time

Method used

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  • Pest and weed integrated control method for seedling-stage summer maize
  • Pest and weed integrated control method for seedling-stage summer maize
  • Pest and weed integrated control method for seedling-stage summer maize

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] After corn sowing and before emergence, the corn field was sprayed with a medicinal solution containing atrazine, nicosulfuron and cypermethrin, which consisted of 48% acetochlor·atrazine suspoemulsion (active ingredient content: acetochlor 24 %, atrazine 24%), 4% nicosulfuron suspending agent and 2.5% cypermethrin emulsifiable concentrate mixed with water, the dosage per mu of each preparation is 48% acetochlor·atrazine suspoemulsion 200-250mL, 4% Nicosulfuron suspending agent 90-100g, 2.5% cypermethrin EC 90-100mL, mixed with water 25kg.

Embodiment 2

[0020] At the 3-5 leaf stage of corn seedlings, spray a medicinal solution containing nicosulfuron-methyl and cypermethrin to the corn field. The medicinal solution is prepared by mixing 4% nicosulfuron-methyl suspension concentrate and 2.5% cypermethrin EC with water. The dosage is 90-100g of 4% nicosulfuron suspension concentrate, 90-100mL of 2.5% cypermethrin emulsifiable concentrate, and 25kg of water.

Embodiment 3

[0022] At the 7-10 leaf stage of corn seedlings, spray a medicinal solution containing nicosulfuron-methyl and cypermethrin to the corn field. The medicinal solution is prepared by mixing 4% nicosulfuron-methyl suspension concentrate and 2.5% cypermethrin emulsifiable concentrate with water. The dosage is 90-100g of 4% nicosulfuron suspension concentrate, 90-100mL of 2.5% cypermethrin emulsifiable concentrate, and 25kg of water.

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Abstract

The invention relates to a pest and weed integrated control method for seedling-stage summer maize. According to the method, chemical liquid containing atrazine, nicosulfuron and pesticide is sprayed to a maize field after sowing and before seedling emergence; or chemical liquid containing nicosulfuron and pesticide is sprayed to the maize field when maize seedlings have 3-5 leaves; or chemical liquid containing nicosulfuron and pesticide is sprayed to the maize field when maize seedlings have 7-10 leaves. Pesticide is pyrethroid pesticide or emamectin benzoate. According to the method, herbicide is alkalescent, pyrethroid pesticide or emamectin benzoate diluent is nearly neutral, and herbicide and diluent do not react after being blended; by blending pyrethroid pesticide or emamectin benzoate with herbicide for use in different seedling stages, the insecticidal effect of pesticide and the weeding effect of herbicide are not weakened, pest control and weeding of the maize field are timely conducted at the same time, and manpower, material resources and financial resources can be saved; maize growth and development are safe, and phytotoxicity is avoided.

Description

technical field [0001] The invention relates to the field of agricultural production, in particular to an integrated prevention and control method for summer corn seedling pests and weeds. Background technique [0002] Corn is one of the important food crops. Due to the fact that summer maize has more wheat straw after no-tillage direct seeding, and the density of insect eggs is high. In addition, the growth period of summer maize is in a high-temperature and rainy season, and diseases, insect pests and weeds are also prone to occur, which will have a certain impact on the growth and development of maize. No harvest. The main insect pests at the seedling stage of corn include thrips, aphids, armyworms, and beet armyworms, which harm the stems and leaves of corn, causing twisted, yellow, and incomplete leaves, hollows at the base of the stems, and death of seedlings. The main weeds in the corn seedling stage are crabgrass, foxtail, Cyperus cyperi, goosegrass, bermudagrass, ...

Claims

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Application Information

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IPC IPC(8): A01N47/36A01N53/08A01G13/00A01P13/00A01P7/04A01N43/70A01N43/90A01N37/26
Inventor 王育红沈东风丁前林贾晴蔚席玲玲孔素娟
Owner LUOYANG ACADEMY OF AGRI & FORESTRY SCI
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