Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Low volatility herbicidal compositions

a composition and low volatility technology, applied in the field of low volatility herbicidal compositions, can solve the problems of insufficient commercial encapsulation products, contact damage to sensitive plants, volatile and drift, etc., and achieve the effect of reducing the volatility of auxin herbicides

Inactive Publication Date: 2014-05-08
MONSANTO TECH LLC
View PDF5 Cites 37 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The invention provides herbicidal compositions with reduced volatility and reduced vapor drift. This is achieved by adding a monocarboxylic acid or monocarboxylate thereof to the composition. The addition of the monocarboxylic acid or monocarboxylate thereof results in a significant reduction in the level of volatile auxin herbicide detected, which provides enhanced protection from off-target crop injury while maintaining herbicidal efficacy on auxin-susceptible plants located in the target area.

Problems solved by technology

Volatility and drift, however, are problems frequently associated with these herbicides.
Volatile auxin herbicides can, under certain application conditions, vaporize into the surrounding atmosphere and migrate from the application site to adjacent crop plants, such as soybeans and cotton, where contact damage to sensitive plants can occur.
Due to technological challenges and other factors, however, commercial encapsulation products that satisfactorily reduce auxin herbicide volatility have not been developed.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

example 1

Compositions

[0348]The herbicidal tank mix compositions listed in the tables below were prepared using CLARITY® (DGA dicamba from BASF), ROUNDUP POWERMAX® (potassium glyphosate from Monsanto), BANVEL® (DMA dicamba from BASF), DURANGO® DMA® (DMA glyphosate'e from Dow AgroSciences) and / or 2,4-D amine (Albaugh) by successively adding each specified herbicide to water and mixing. Those tank mix formulations containing additional tank mix adjuvants such as potassium acetate (Sigma), dipotassium phosphate (ICL), and / or ammonium sulfate (Sigma) were typically prepared by adding aqueous stock solutions of the adjuvants to the herbicide mixture.

[0349]Herbicide salts not purchased from a commercial vendor, such as IPA glyphosate and MEA dicamba, typically were prepared by mixing the herbicide acid with the desired amine. The herbicide acid to amine ratio typically is about 1:1. In certain instances, a slight excess of amine is desired. As used in these examples, DGA refers to diglycolamine; DM...

example 2

Compositions

[0354]Herbicidal compositions containing DGA dicamba and MEA glyphosate were prepared by mixing CLARITY® with MEA glyphosate with water. After stirring the mixture for 5 minutes, surfactants AGM550 and Agnique PG8107-G were added followed by ferric citrate (for mitigating necrosis in certain crops) and anti-foaming agent SAG 1572, and the mixture stirred for an additional 30 minutes. Premix compositions which also contain additional adjuvants, such as potassium acetate, were prepared as described above with the modification of replacing the water with the desired amount of aqueous adjuvant. The MEA glyphosate salt used in the preparation of the compositions was prepared by mixing glyphosate acid and 1.35 molar equivalents of MEA with water. The list of ingredients of the dicamba / glyphosate premix composition is set forth in Table 2-1.

TABLE 2-1(DGA Dicamba / MEA Glyphosate Premix)INGREDIENTWT (g)WT %% ACTIVEDGA dicamba (CLARITY ®)32.3632.36%12.75%1.35 MEA glyphosate (46.9%)...

example 3

Measurement of Dicamba Volatility (Humidome)

[0358]Humidomes obtained from Hummert International (Part Nos 14-3850-2 for humidomes and 11-3050-1 for 1020 flat tray) were modified by cutting a 2.2 cm diameter hole on one end approximately 5 cm from the top to allow for insertion of a glass air sampling tube (22 mm OD) containing a polyurethane foam (PUF) filter. The sampling tube was secured with a VITON o-ring on each side of the humidome wall. The air sampling tube external to the humidome was fitted with tubing that was connected to a vacuum manifold immediately prior to sampling.

[0359]The flat tray beneath the humidome was filled with 1 liter of sifted dry or wet 50 / 50 soil (50% Redi-Earth and 50% US 10 Field Soil) to a depth of about 1 cm. The flat tray bottom containing the dicamba formulation on soil was covered with the humidome lid and the lid was secured with clamps. The assembled humidomes were placed in a temperature and humidity controlled environment and connected to a v...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The present invention relates generally low volatility herbicidal compositions comprising at least one auxin herbicide and at least one monocarboxylic acid, or monocarboxylate thereof. The invention further relates generally to methods for preparing and using such low volatility herbicidal compositions, including methods for controlling auxin-susceptible plant growth on agricultural and non-agricultural lands.

Description

CROSS-REFERENCE TO RELATED APPLICATION[0001]This application claims priority to U.S. Provisional Application Ser. No. 61 / 722,700 filed on Nov. 5, 2012, and U.S. Provisional Application Ser. No. 61 / 794,769 filed on Mar. 15, 2013. The entire text of those provisional applications is incorporated by reference into this application.FIELD OF THE INVENTION[0002]The present invention relates generally to low volatility herbicidal compositions comprising at least one auxin herbicide and at least one monocarboxylic acid, or monocarboxylate thereof. The invention further relates generally to methods for preparing and using such low volatility herbicidal compositions, including methods for controlling auxin-susceptible plant growth on agricultural and non-agricultural lands.BACKGROUND OF THE INVENTION[0003]Auxin herbicides, such as dicamba (3,6-dichloro-2-methoxybenzoic acid) and 2,4-D (2,4-dichlorophenoxyacetic acid), are commonly used to control auxin-susceptible plant growth on both agricul...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(United States)
IPC IPC(8): A01N25/22G09B19/00
CPCG09B19/00A01N25/22A01N37/02A01N37/40A01N39/04A01N57/02A01N2300/00A01N57/20A01N37/04
Inventor HEMMINGHAUS, JOHN W.MACINNES, ALISONWRIGHT, DANIEL R.ZHANG, JUNHUA
Owner MONSANTO TECH LLC
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com