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Method of controlling weeds

a weed and control technology, applied in the field of weed control, can solve problems such as fear of lower efficiency, and achieve the effect of high weed control

Pending Publication Date: 2021-09-02
SUMITOMO CHEM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The present invention provides a method for controlling weeds that results in a high weed control effect.

Problems solved by technology

However, the use of the drift-reducing nozzle easily causes uneven spraying, arousing a fear of lower efficiency (see Non-Patent Documents 1 to 4).

Method used

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  • Method of controlling weeds

Examples

Experimental program
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Effect test

example 1

[0216]Amaranthus palmeri having an Arg128Gly mutation in PPO2, Amaranthus palmeri having an Arg128Met mutation in PPO2, Amaranthus palmeri having a Gly210 deletion mutation in PPO2, Amaranthus palmeri having a Gly399Ala mutation in PPO2, waterhemp having a Gly210 deletion mutation in PPO2, and ragweeds having Arg128Leu in PPO2 are sown in a plastic pot. On the same day, a compound X is applied to the surface of soil by using a drift-reducing nozzle (TTI11004 manufactured by Teejet Company). The amount of the compound X to be applied is 10, 20, 40, 80, or 160 g / ha and the amount of spray dilution is 200 L / ha. Then, these weeds are cultivated in a greenhouse and Roundup Ready 2 Xtend soybean seeds are sown after 7 days, to examine the effects on the weeds and phytotoxic effects on the soybean after 14 days. A valuable effect on the relevant weeds is confirmed.

example 2

[0217]Amaranthus palmeri having an Arg128Gly mutation in PPO2, Amaranthus palmeri having an Arg128Met mutation in PPO2, Amaranthus palmeri having a Gly210 deletion mutation in PPO2, Amaranthus palmeri having a Gly399Ala mutation in PPO2, waterhemp having a Gly210 deletion mutation in PP02, ragweeds having Arg128Leu in PP02, and a Roundup Ready 2 Xtend soybean are sown in a plastic pot. On the same day, a compound X is applied to the surface of soil by using a drift-reducing nozzle (TTI11004 manufactured by Teejet Company). The amount of the compound X to be applied is 10, 20, 40, 80, or 160 g / ha and the amount of spray dilution is 200 L / ha. Then, the weeds and soybean are cultivated in a greenhouse to examine the effects on the weeds and phytotoxic effects on the soybean after 21 days. A valuable effect on the relevant weeds is confirmed.

example 3

[0218]Amaranthus palmeri having an Arg128Gly mutation in PPO2, Amaranthus palmeri having an Arg128Met mutation in PPO2, Amaranthus palmeri having a Gly210 deletion mutation in PPO2, Amaranthus palmeri having a Gly399A1a mutation in PPO2, waterhemp having a Gly210 deletion mutation in PP02, ragweeds having Arg128Leu in PP02, and a Roundup Ready 2 Xtend soybean are sown in a plastic pot. Then, the weeds and soybean are cultivated in a greenhouse and a compound X is applied to perform foliar treatment by using a drift-reducing nozzle (TTI11004 manufactured by Teejet Company) 21 days after sowing. The amount of the compound X to be applied is 10, 20, 40, 80, or 160 g / ha and the amount of spray dilution is 200 L / ha. Then, the weeds and soybean are further cultivated in a greenhouse to examine the effects on the weeds and phytotoxic effects on the soybean 14 days after treatment. A valuable effect on the relevant weeds is confirmed.

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Abstract

The present invention can provide a method having a high effect on the control of weeds. The method includes a step of applying Trifludimoxazin or ethyl [3-[2-chloro-4-fluoro-5-(1-methyl-6-trifluoromethyl-2,4-dioxo-1,2,3,4-tetrahydropyrimidine-3-yl)phenoxy]-2-pyridyloxy]acetate using a drift-reducing nozzle.

Description

TECHNICAL FIELD[0001]This application claims priority to and the benefit of Japanese Patent Application No. 2018-125825 filed on Jul. 2, 2018, the entire contents of which are incorporated herein by reference.[0002]The present invention relates to a method of controlling weeds.BACKGROUND ART[0003]It has been already known to apply herbicides such as trifludimoxazin or ethyl [3-[2-chloro-4-fluoro-5-(1-methyl-6-trifluoromethyl-2,4-dioxo-1,2,3,4-tetrahydropyrimidine-3-yl)phenoxy]-2-pyridyloxy]acetate in a method of controlling weeds (see Patent Documents 1 and 2).[0004]As the method of applying herbicides, a method is known in which herbicides are mixed with water to prepare a spray dilution and the spray dilution is sprayed using a drift-reducing nozzle. When this drift-reducing nozzle is used, the drift is more reduced than when using a standard nozzle. However, the use of the drift-reducing nozzle easily causes uneven spraying, arousing a fear of lower efficiency (see Non-Patent Doc...

Claims

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Application Information

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IPC IPC(8): A01N43/84A01N25/06
CPCA01N43/84A01N25/06A01N43/54A01N57/20A01N37/40
Inventor JIN, YOSHINOBU
Owner SUMITOMO CHEM CO LTD