GB2027344A - Herbicidal formulation - Google Patents

Herbicidal formulation Download PDF

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Publication number
GB2027344A
GB2027344A GB7829989A GB7829989A GB2027344A GB 2027344 A GB2027344 A GB 2027344A GB 7829989 A GB7829989 A GB 7829989A GB 7829989 A GB7829989 A GB 7829989A GB 2027344 A GB2027344 A GB 2027344A
Authority
GB
United Kingdom
Prior art keywords
bifenox
mecoprop
phytotoxic
salt
ester
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
GB7829989A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Lilly Industries Ltd
Original Assignee
Lilly Industries Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Lilly Industries Ltd filed Critical Lilly Industries Ltd
Priority to GB7829989A priority Critical patent/GB2027344A/en
Priority to AR277235A priority patent/AR225418A1/en
Priority to SE7906014A priority patent/SE7906014L/en
Priority to IL57767A priority patent/IL57767A/en
Priority to GB7924150A priority patent/GB2031279B/en
Priority to DE19792927908 priority patent/DE2927908A1/en
Priority to NL7905400A priority patent/NL7905400A/en
Priority to FR7917994A priority patent/FR2430723B1/en
Priority to AT0483979A priority patent/AT364572B/en
Priority to DK291679A priority patent/DK160967C/en
Priority to RO7998138A priority patent/RO78004A/en
Priority to BE6/46892A priority patent/BE877675A/en
Priority to CS794899A priority patent/CS209930B2/en
Priority to NZ190989A priority patent/NZ190989A/en
Priority to TR20527A priority patent/TR20527A/en
Priority to ZA00793515A priority patent/ZA793515B/en
Priority to GR59590A priority patent/GR69817B/el
Priority to FI792193A priority patent/FI62204C/en
Priority to AU48889/79A priority patent/AU527751B2/en
Priority to CH655079A priority patent/CH641011A5/en
Priority to SU792790363A priority patent/SU860674A3/en
Priority to IT49754/79A priority patent/IT1117178B/en
Priority to MA18720A priority patent/MA18523A1/en
Priority to BR7904487A priority patent/BR7904487A/en
Priority to DD79214330A priority patent/DD144858A5/en
Priority to JP8920679A priority patent/JPS5515483A/en
Priority to CA331,753A priority patent/CA1129664A/en
Priority to PT69919A priority patent/PT69919A/en
Priority to LU81499A priority patent/LU81499A1/en
Priority to HU79LI346A priority patent/HU180832B/en
Priority to MX798191U priority patent/MX5912E/en
Priority to ES482463A priority patent/ES482463A1/en
Priority to BG7944331A priority patent/BG30615A3/en
Priority to EG424/79A priority patent/EG13945A/en
Priority to PL1979217116A priority patent/PL116679B1/en
Priority to KR7902370A priority patent/KR830002045B1/en
Priority to IE1325/79A priority patent/IE48774B1/en
Publication of GB2027344A publication Critical patent/GB2027344A/en
Priority to HK738/85A priority patent/HK73885A/en
Withdrawn legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
    • A01N39/00—Biocides, pest repellants or attractants, or plant growth regulators containing aryloxy- or arylthio-aliphatic or cycloaliphatic compounds, containing the group or, e.g. phenoxyethylamine, phenylthio-acetonitrile, phenoxyacetone
    • A01N39/02—Aryloxy-carboxylic acids; Derivatives thereof
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
    • A01N39/00—Biocides, pest repellants or attractants, or plant growth regulators containing aryloxy- or arylthio-aliphatic or cycloaliphatic compounds, containing the group or, e.g. phenoxyethylamine, phenylthio-acetonitrile, phenoxyacetone
    • A01N39/02—Aryloxy-carboxylic acids; Derivatives thereof
    • A01N39/04—Aryloxy-acetic acids; Derivatives thereof

Abstract

A post-emergent method of controlling broadleaf species of weeds in areas of cereal crop growth which involves the application of a combination of bifenox: <IMAGE> and mecoprop: <IMAGE> or a non-phytotoxic salt or ester thereof, to the area in question.

Description

SPECIFICATION Herbicidal formulations This invention relates to novel herbicidal formulations of particular value in the post-emergent treat- ment of cereal crops to control broadleaf weeds, and also embraces within its scope methods of control of such weeds by application of the novel formulations.
Heretofore, the broadleaf weed species Galium aparine and Matricaria spp. have proved particularly resistant to conventional herbicides causing such damage to winter and spring cereal crops such as wheat, barley, oats and rye.
It has now been discovered by the Applicants that these species of weed are controlled unexpectedly well by application of formulations containing a combination of bifenox:
and mecoprop:
or salts or esters thereof which are non-phytotoxic to cereals, this combination exhibiting synergistic properties in accordance with the well-known "Colby equation" (see Weeds, '5,20-22(1967)).
The preparation of bifenox is described in United Kingdom Patent Specification No. 1,232,368 and its use as a herbicide in Proc. N.E. Weed. SciConf 1973, 27, 31. Similarly, the preparation of mecoprop is described in United Kingdom Patent Specification No.820,180 and its use as a herbicide in Proc. 3rd.
Br. Weed Control Conf. 1956,625.
According to the present invention there is provided, a herbicidal formulation which comprises as active ingredients bifenox and mecocrop, or a salt or ester thereof, associated with a non-phytotoxic carrier therefor.
If a salt or ester of mecocrop is utilised it, of course, must be non-phytotoxic towards the cereal crop. The nature of suitable salts and esters will be well known to those skilled in the art.
The formulations of the invention are intended for use as post-emergent herbicides to be applied to the crop preferably between the one-leaf stage and the start of jointing. The amount of the active ingredients to be applied will be determined by crop sensitivity andlor by the severity of the weed problem.
However, in general, the bifenox will be applied at a rate of 0.25 to 3.0 kg. per hextare whereas the mecocrop will be applied at a rate of from 0.5 to 3.0 kg. per hextare (based on the acid equivalent if a salt or ester is used).
In order to simplify manufacture, storage and transport, the herbicidal formulations of the invention will normally be produced in concentrate form intended for dilution in water to the degree necessary to enable the above mentioned application rates to be easily achieved. Such concentrated formulations may contain from 1 to 90 /O preferably 15 to 85%, by weight of active ingredients associated with one or more inert non-phytotoxic carrier(s) therefor. Such formulations will usually be in the form of a wettable powder, an emulsifiable concentrate or an aqueous suspension.
Wettable powders comprise an intimate mixture of the active ingredients, one or more inert carriers and appropriate surfactants. The inert carrier may be chosen from the attapulgite clays, the montmorillonite clays, the diatomaceous earths, kaolins, micas, talcs and purified silicates. Effective surfactants may be found among the sulfonated lignins, the naphthalene sulfonatesand condensed naphthalene sulfonates, the alkyl succinates, the alkylbenzene sulfonates, the alkyl sulfates and nonionic surfactants such as ethylene oxide adducts of phenol.Illustrative of wettable powders falling within the scope of the invention are those having the following composition: Wettable Powders % by weight Bifenox 1 to 73 Mecoprop* 2 to 79 Surfactant 1 to 10 Dispersing Agent Oto 10 Anticaking agent 0 to 10 Inertcarrier(s) to 100 * based on acid equivalent Emulsifiable concentrates comprise the active ingredients dissolved in a suitable solvent or suitable solvents together with a surfactant. Suitable surfactants may be chosen from those mentioned above in connection with wettable.powders. Suitable solvents include alkyl substituted benzenes, o-chlorotoluene, heavy aromatic naphthalenes, glycol ethers and cyclic ketones.Typical examples of emulsifiable concentrates falling within the scope of the invention are: Emulsifiable Concentrates % weightivolume Bifenox 1 to 55 Mecoprop 2 to 60 Surfactant(s) 2 to 10 Co-solvent 0 to 40 Solvent to 100 Alternatively, the herbicidal formulation of the invention may be formed by mixing the two active ingredients in a spray tank just prior to use, the water thus acting as a non-phytotoxic carrier. It is to be clearly understood that such so-called "tank mixes" are embraced within the scope of the formulations of the invention.
In both the concentrate and dilute formulation cases, the ratio of bifenox to mecoprop will lie in the range 1:2to6:1, preferably from 1:2 to 1:1.
The following non-limitative Examples will further iliustrate formulations in accordance with the invention. In all Examples the amount of mecoprop used is based on the acid equivalent.
EXAMPLES 7to3 The following wettable powders were prepared in each case have the ingredients shown: % by weight (1) Bifenox 20 Mecoprop (potassium salt) 40 Sodium lauryl sulphate 3 Sodium lignin sulphonate 3 Precipitated silica 8 Kaolin to 100 % by weight (2) Bifenox 20 Mecoprop (sodium salt) 27 Ethoxylated alkyl phenol 4 Lignosulphonate 3 Fumed Silica 6 Attapulgite to 100 % by weight (3) Bifenox 10 Mecoprop (diethanolamine salt) 25 Sodium salt of condensed naphthalene sulphonic acids 6 Precipitated silica 10 Sodium alumino silicate to 100 In each Example, the active ingredients were carefully blended with the specified excipients in conventional mixing equipment. The blend was then further milled in a fluid energy mill to a size range of from 1 to 10 microns and finally the mixture was reblended and deaerated prior to being packaged.
EXAMPLES 4 to 6 The following emulsifiable concentrates were prepared having the constituents shown below: % by weightiby volume (4) Bifenox 15 Mecoprop 30 Calcium dodecylbenzene sulphonate 3 Alkyl phenoxypolyoxyethylene ethanols 3 Isophorone 20 Xylene to 100 % by weightiby volume (5) Bifenox 15 Mecoprop ester 20 Alkyl aryl sulphonate 4 Polyoxyethylene triglyceride 4 Cyclohexanone 20 Orthochlorotoluene to 100 % by weightiby volume (6) Bifenox 10 Mecoprop 25 Amine salt of dodecylbenzene sulphonicacid 3 Polyoxyethylene sorbital fatty esters 4 Isophorone 15 Heavy aromatic naphtha to 100 The active ingredients were added to the appropriate solvent(s) with stirring and optional heating to facilitate solubilisation of the active materials.The surfactants were then added. After solubilisation the solution was filtered to remove insoluble impurities.
EXAMPLE 7 This example illustrates the synergistic effect demonstrated by the combination of the invention when used for control of the broadleaf weeds Gallium aparine and Matricaria spp.
Winter wheat was sown in France in October at a depth of 3 cm. and at a rate of 150 kg/hectare. The crop was allowed to grow without treatment until the following March, at which time the crop was at growth stage 4-5 (see Plant Pathol., 3 128-9(1954)).
Bifenox and mecoprop were then combined together as a tank mix and sprayed onto the area in which the crop was growing using a knapsack sprayer at a volume rate per hectare of 300 litres.
Assessments, as weed control ratings, were made between 2 and 5 weeks after application.
TAGFLE % CONTROLOF Dosage rate Galium Matricaria spp.
glhectare aparine Bifenox 1000 60 6 Bifenox 1500 71 15 Bifenox + Mecoprop 1000 + 2000 94 87 Bifenox + Mecoprop 1500 + 2000 95 88 Mecoprop 2000 80 50

Claims (3)

1. A herbicidal formulation comprising as active ingredients a combination of bifenox:
and mecoprop:
or a non-phytotoxic salt or ester thereof, associated with a non-phytotoxic carrier therefor.
2. A method of controlling or eradicating broadleaf weeds in an area of cereal crop growth which comprises applying from 0.25 to
3.0 kg/hectare of bifenox together with a 0.5 to 3.0 kg/hectare of mecoprop, or a non-phytotoxic salt or ester thereof, to the area after emergence of the crop.
GB7829989A 1978-07-15 1978-07-15 Herbicidal formulation Withdrawn GB2027344A (en)

Priority Applications (38)

Application Number Priority Date Filing Date Title
GB7829989A GB2027344A (en) 1978-07-15 1978-07-15 Herbicidal formulation
AR277235A AR225418A1 (en) 1978-07-15 1979-07-10 A SYNERGIC HERBICIDE COMPOSITION TO COMBAT WEEDS IN WINTER CEREAL CROPS.
SE7906014A SE7906014L (en) 1978-07-15 1979-07-10 HERBICIDE
IL57767A IL57767A (en) 1978-07-15 1979-07-10 Herbicidal method and synergistic compositions comprising a phenoxybenzoic acid derivative and a phenoxyalkanoic acid derivative
GB7924150A GB2031279B (en) 1978-07-15 1979-07-11 Herbicides
DE19792927908 DE2927908A1 (en) 1978-07-15 1979-07-11 METHOD AND MEANS FOR CONTROLLING WEEDS IN A GRAIN FIELD
NL7905400A NL7905400A (en) 1978-07-15 1979-07-11 METHOD FOR CONTROLLING WEEDS IN CEREALS AND HERBICIDES FOR THIS.
FR7917994A FR2430723B1 (en) 1978-07-15 1979-07-11 PROCESS FOR THE HERBICIDE TREATMENT OF CEREAL CROPS USING A MIXTURE OF SUBSTITUTED BIPHENYLETHER AND SUBSTITUTED PHENYLALKYLETHER AND COMPOSITIONS THEREFOR
AT0483979A AT364572B (en) 1978-07-15 1979-07-11 AGENT FOR CONTROLLING WEEDS IN CEREAL FIELDS
DK291679A DK160967C (en) 1978-07-15 1979-07-11 PROCEDURE AND HERBICIDE PREPARATION FOR THE FIGHT AGAINST WEEDS IN THE GROWTH OF A CORN CROP
RO7998138A RO78004A (en) 1978-07-15 1979-07-12 ERBICIDA SINERGETICA COMPOSITION
BE6/46892A BE877675A (en) 1978-07-15 1979-07-12 HERBICIDE TREATMENT METHOD AND COMPOSITIONS THEREFOR
CS794899A CS209930B2 (en) 1978-07-15 1979-07-12 Herbicide means
NZ190989A NZ190989A (en) 1978-07-15 1979-07-12 Herbicidal compositions and methods methyl 5-(2,4-dichlorophenoxy)-2-nitrobenzoate and one or more (4-chloro-2-methylphenoxy) alkanoic acid
TR20527A TR20527A (en) 1978-07-15 1979-07-12 PROCEDURES FOR FIGHTING WITH HARMFUL HERBS IN CROPS AND HERBISID FORMUELATIONS FOR USE IN THIS PROCEDURE
ZA00793515A ZA793515B (en) 1978-07-15 1979-07-12 Herbicides
GR59590A GR69817B (en) 1978-07-15 1979-07-12
FI792193A FI62204C (en) 1978-07-15 1979-07-12 FOERFARANDE FOER BEKAEMPNING AV OGRAES PAO VAEXTPLATSEN AV SAEDESVAEXTER OCH VID FOERFARANDET ANVAENDBAR HERBICIDKOMPOSITION
AU48889/79A AU527751B2 (en) 1978-07-15 1979-07-12 Synergistic herbicidal composition method
CH655079A CH641011A5 (en) 1978-07-15 1979-07-13 Herbicidal treatment process and compositions for this purpose
MX798191U MX5912E (en) 1978-07-15 1979-07-13 PROCEDURE TO OBTAIN A SYNERGISTIC HERBICIDE COMPOSITION
IT49754/79A IT1117178B (en) 1978-07-15 1979-07-13 IMPROVEMENT IN HERBICIDE COMPOSITIONS
MA18720A MA18523A1 (en) 1978-07-15 1979-07-13 HERBICIDE TREATMENT METHOD AND COMPOSITIONS THEREFOR
BR7904487A BR7904487A (en) 1978-07-15 1979-07-13 PROCESS TO COMBAT WEED AND HERBICIDE COMPOSITION
DD79214330A DD144858A5 (en) 1978-07-15 1979-07-13 METHOD AND MEANS FOR THE CONTROL OF UNCRAFT IN A CEREAL FIELD
JP8920679A JPS5515483A (en) 1978-07-15 1979-07-13 Herbicide
CA331,753A CA1129664A (en) 1978-07-15 1979-07-13 Method of combating weeds in cereal crops and herbicidal formulations therefor
PT69919A PT69919A (en) 1978-07-15 1979-07-13 A method of combating weeds and process for preparing herbicides
LU81499A LU81499A1 (en) 1978-07-15 1979-07-13 HERBICIDE TREATMENT METHOD AND COMPOSITIONS THEREFOR
HU79LI346A HU180832B (en) 1978-07-15 1979-07-13 Process for selective extirpation of weeds of cereals and for producing synergetic herbicide composition for sellective extirpation of weeds of cereals
SU792790363A SU860674A3 (en) 1978-07-15 1979-07-13 Method of fighting weeds
ES482463A ES482463A1 (en) 1978-07-15 1979-07-13 Procedure for preparing a synergistic herbicide composition. (Machine-translation by Google Translate, not legally binding)
BG7944331A BG30615A3 (en) 1978-07-15 1979-07-13 Herbicide composition and method for weed fighting
EG424/79A EG13945A (en) 1978-07-15 1979-07-14 A process for the preparation of a herbicidal formulation comprising known compounds
PL1979217116A PL116679B1 (en) 1978-07-15 1979-07-14 Herbicide
KR7902370A KR830002045B1 (en) 1978-07-15 1979-07-16 Herbicidal compositions
IE1325/79A IE48774B1 (en) 1978-07-15 1979-08-08 Herbicides
HK738/85A HK73885A (en) 1978-07-15 1985-09-26 Herbicides

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB7829989A GB2027344A (en) 1978-07-15 1978-07-15 Herbicidal formulation

Publications (1)

Publication Number Publication Date
GB2027344A true GB2027344A (en) 1980-02-20

Family

ID=10498452

Family Applications (2)

Application Number Title Priority Date Filing Date
GB7829989A Withdrawn GB2027344A (en) 1978-07-15 1978-07-15 Herbicidal formulation
GB7924150A Expired GB2031279B (en) 1978-07-15 1979-07-11 Herbicides

Family Applications After (1)

Application Number Title Priority Date Filing Date
GB7924150A Expired GB2031279B (en) 1978-07-15 1979-07-11 Herbicides

Country Status (6)

Country Link
JP (1) JPS5515483A (en)
BE (1) BE877675A (en)
CA (1) CA1129664A (en)
CS (1) CS209930B2 (en)
GB (2) GB2027344A (en)
ZA (1) ZA793515B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0231657Y2 (en) * 1986-10-15 1990-08-27

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5635164B2 (en) * 1973-11-28 1981-08-15
JPS50125030A (en) * 1974-03-23 1975-10-01

Also Published As

Publication number Publication date
ZA793515B (en) 1981-02-25
GB2031279A (en) 1980-04-23
JPS5515483A (en) 1980-02-02
CA1129664A (en) 1982-08-17
BE877675A (en) 1980-01-14
GB2031279B (en) 1983-02-16
CS209930B2 (en) 1981-12-31

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WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)