IL47617A - Herbicidal compositions containing a n-(phenyl-carbamoyl)-4-methyl piperidine and a s-ethyl-n,n-dialkyl-thiocarbamate - Google Patents

Description

Herbicldal compoeltions containing a and a FUR INDUSTRIE GMBH to a method of protecting a crop area against weed Various are useful as with a effect against monocotyledonous Examples of these herbicides are which is sold under the Trade Mark by Stauffer Chemical and which is sold under the Trade by Stauffer One these herbicides is they can be harmful to maize as well as to the to counteract various protective known as have more recently been used in junction with the enables these thiocarbamates to be uyed for the combating of amongst An example of a herbicide an antidote is that sold under the Trade Kark by Stauffer Chemical which contains and Another disadvantage of thiocarbamate herbicides is that Various triasines are also useful as example the maize herbicide known by the common name of triazines for nearly two decades as maize herbicides has led to changes in the weed in to an alarming increas of species which are difficult to controlo In places where maize has been grown for a long crouch grass is in increasing and cannot always be effectively with in normally used quantities of to kgha and of herbicide would affec subsequent cultivations since atrazine has a long persistence in the soil 15 of atrazine or also have an undesirably long The invention provides a herbicide comprising a of the general formula in which It denotes a hydrogen or fluorine atom a compound of the general formula compounds and their use as herbicides are described and claimed in Israel patent specification In the present these two can be used either individually or in admixture with one compounds of component are commercially available examples of which have already been The radicals denoted b and general formula component are Preferred compounds for use 3 component are The compounds of component can be used individually or two or more can be used in with one The two components and are advantageously used in a respective weight ratio of from 10 90 to from to 50 the two components and are used in such a ratio and applied in such an that from 1 to 6 kg ha of component and from to 8 of component preferably from 2 to 4 kg of each of components and are applied to the It can be advantageous for the herbicide according to the invention additionally to comprise a protective or so as to hinder or prevent any damage by the to the this is especially so in the case of As a general rule it is preferable to use an dote when component is and preferable not to use an antidote when component is of suitable antidotes are the following acid aniiydride of the 5 compounds of the general in which X denotes a halogen for example a denotes an or arallyl for example an ethyl and n denotes or Belgian Patent 10 771 and 3 of the formula 15 amount of antidote used may be up to 20 ί by ferably from to 15 by relative to the weight of component The herbicides according to the may also additional agriculturally example a fer ilis t 20 or The herbicides may consist solely of above mentioned but they advantageously also a solid or licuid in admixture o conjunction with the said so as to render them more suitable for application the soil or 25 crop In these herbicides may suitably comprise from to 95 of and The herbicides ca be formulated in conventional manner into pas wettable solutions in organic solvents acetone emulsion concentrates and lettabl powders will normally be with water prior to use to give an aqueous spraying liquor from to 5 by preferably from to by of components and Suitable concentrates may comprise from 10 to by of components and from 2 to 25 by weight of a for example a sodium calcium an polygl col a alkylphenol condensation or a sodium naphthalene and an organic an or or an ether diethyl Suitable wettable may from 10 to 30 by weight of components and from 20 to 80 by weight of an inert solid for magnesium or or dispersed and a one Suitable dusting agents may comprise from to 25 by weight of components and and an inert solid for one mentioned The pulverulent are suitably prepared intimately the active substances the other grinding the mixture in a bouncing pin mill or other suitable grinding preferably to a particle size of less 20 again mixing the and finally sieving The herbicides according to the invention are advantageousl applied to the soil either prior to sowing the seed of the crop to be protected or after sowing but prior to An alternative to applying the components and optionally together with an antidote one or more in admixture in the herbicide according to the it is possible to apply one or more of the components For components and can be applied to the soil taneously prior to sowing the and then the if be applied simultaneously with the components and can be applied separately to the present a method of protecting crop area against weed comprises applying to the soil of crop or after sowing the seed of the crop to be component and component as in cither order or Because of the high vapour pressure of the thiocarbamates it is generally advantageous for these substances to be worked into the suitably to a depth of 5 to 10 immediately after It is therefore preferable either to apply both components and prior to or to apply component optionally together with an prio to ing and to apply component after In either component admixture component in the first can e wor e n o e groun a e y a er sow en component is applied after it will be applied merely to the surface of the soil and is preferably applied prior to for example to 4 days afte components and are to be applied they can be formulated individually into herbicidal for example described above vrith reference to a of components and She following examples illustrate the present Throughout the the compounds used are indicated by the following reference lettersί component A component as an Compound3 B2 and C were obtained as the commercially emulsion concentrates Chemical Chemical and Also throughout the the effectiveness of the cides against the various plants is indicated by the numerals 0 to with 0 that the plants buffered no damage 10 indicating that they wero totally In thi3 the herbicidal properties of various compound both individually and in were examined in a greenhiq deep wooden boxese were into the to a depth of prior to sowing the The analysis their effectiveness was carried out 4 weeks after the The following plants were used charlock goose cornflower wild common wild oat Barnyard millet slender foxtail ecuru3 annual meadow grass bent grass corn marigold barley sea beet grain sorgh and couch grass The results are tabulated in the following Table In this exampleJ the herbicidal of various compound both individually and in were examined on open Component was prior to sowing and worked into the whereas component wa3 applied three days after Analysis was carried out The following plants were usedi summer charlock broom grass barnyard millet oat fat goose grass French weed Sowthistle fat hen small nettle chickweed ellaria couch gras3 The results are tabulated in Table Example In this the persistence in the soil of a herbicide according to the invention is compared vrith the persistence erbicides were in the amounts indicated to loamy soil with a humus content of 9 plasties trays in a The trays were sown with the plants listed below at various of from 1 to 13 after application of the each tray being sown once onlye The used were as summer seal goose and The effectiveness of the herbicides on all eight plants togethe and oats and goose grass individuall is tabulated Table according to the waiting period hetween and sowing of the She decreasing effectiveness of the according to the wait insufficientOCRQuality

Claims (1)

1. What claim Herbicide claimed in claim in which antidote is acid or a of the general formula X 0 E3 i whic X denotes a denotes an or and n denotes 3 or Herbicide as in claim 6 or claim wherein the amount of antidote is up by relative to the weight of component Herbicide as claim the amount of antidote to 15 relative to the of Herbicide as claimed in any o claims ing from to by weight of components and i admixture or conjunction with an liquid Herbicide as in claim in the form of a erbicide as claimed in any one of claims 1 to in the form of an aqueous spraying liquor to 5 by weight of components and Herbicide as claimed in any one of 1 i the of an aqueous by of components and t Herbicide as claimed any one of claims in the form of an emulsion concentrate from 10 to 60 by of components and from to 25 j by a and an organic solvent0 Herbicide as in any one of 1 to the form of a wettable powder from 10 80 by of components and 20 to 80 by a inert solid a Herbicide as claimed in one of claims 1 to i the form of ει dustin agent comprising 5 to 25 by of components and an inert Herbicide as claimed in any one of claims 1 to additionally one or more agriculturally useful o protecting a crop area against weed comprises to the soil of the crop before or after cowing the seed of to be either order or Method as claimed in claim wherein the ratio of component to component is from 10 90 to 70 by as in claim wherein the ratio of to component 75 to 50 50 by as claimed in any one of claims to component is Method as in one of claims 13 to wherein is Method as claimed in any one of 13 to wherein an antidote is additionally applied to the Method claimed in claim wherein the antidote is Tricarboxylic or a compound of the general formula X 0 in whic denotes a halogen denotes an or n denotes 3 or claimed claim or claim wherei the up to 20 by relative to the of component Method as claimed in claim 23 or claim wherein the amount o antidote is from to by relative to the weight of component Method as claimed in any one of claims 13 to wherein the soil when of components and is applied Method as claimed in one of claims 18 to wherein both components and are applied to the soil prior to as any one of to is applied to the soil prior and component applied but prior to od as in claim 23 or claim one of claims to wherei is applied l with component when as in any one of claims 13 to wherein component is applied in a concentration of 1 to 6 kgha component is applied in a concentration of from to Method as claimed in any one of 18 to each of and is applied in a centration of fro 2 to insufficientOCRQuality