JPS632902A - Herbicide composition and herbicidal process - Google Patents

Abstract

PURPOSE:To provide the titled composition containing a specific phenoxy compound and a specific carbamate compound as main active components, effective in selectively exterminating broad-leaved weeds and narrow-leaved weeds at a low rate of application and free from phytotoxicity to useful crops especially e.g. rice, corn, etc. CONSTITUTION:The objective composition contains, as main active components, (A) a phenoxy compound of formula I {X is Cl or CF3; Y is Cl or CH3; Z is <=4C bivalent aliphatic hydrocarbon group; R<1> is H, <=4C saturated aliphatic hydrocarbon group, phenyl, etc.; R<2> is OR<3> [R<3> is (substituted) <=15C aliphatic hydrocarbon group, (substituted) phenyl, etc.] or group of formula II (R<4> and R<5> are H, <=6C saturated aliphatic hydrocarbon group, etc.); R<6> together with R<1> forms the group of formula III or formula IV; n is 0-2} and (B) a carbamate compound of formula V [R<7> and R<8> are H, <=4C saturated aliphatic hydrocarbon group, etc.; R<9> is <=4C saturated aliphatic hydrocarbon group or group of formula VI (W is halogen; m is 0-4); Q is O or S]. EFFECT:Low toxicity to animal and fish.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention provides a leather removing agent I which contains a specific phenoxy compound and a specific carbamate compound as main active ingredients! I1 Concerning spoilage and weeding methods. More specifically, the present invention relates to a herbicidal composition and weeding method that does not cause harmful effects on useful crops and has a wide herbicidal spectrum against not only broad-leaved weeds but also fine-cord weeds.

BACKGROUND OF THE INVENTION In the past, many herbicides have been proposed, some of which have been developed and are commercially available. It is known that certain compounds with a carbamate skeleton among them have herbicidal activity, and some of them are commercially available. For example, 5-(4
-Chlorobenzyl) N,N-diethylthiocarbamate has a herbicidal effect of 1 on paddy field weeds, but it is known that its herbicidal effect is relatively low on certain strains of broad-leaved weeds (Special Publications No. 4). a-29024, 4111 1982 227
05 w% Kaisho 56-152405).

On the other hand, some of the present inventors have discovered that certain phenoxy compounds have excellent herbicidal activity mainly against broad-winged weeds, and have no or almost no phytotoxicity on narrow-leaved crops such as rice and corn. The compound was proposed to the heading (special lf1+1861-36
No. 46 #! (See Schedule A).

Purpose of the Invention Therefore, the present inventor developed a herbicidal spectrum with a wide range that does not cause chemical damage to useful crops, can be used in both upland fields and paddy fields, and can kill both broad-leaved weeds and fine-cord weeds. As a result of conducting research aimed at developing a herbicide having a carbamate skeleton, we selected a compound with a carbamate skeleton from among the many proposed herbicides, and combined this with a phenoxy compound proposed by some of the inventors of the present invention. The present inventors have discovered that the above object can be achieved by combining the above-mentioned compounds with other compounds.

1 That is, 1 object of the present invention is to eliminate broad-leaved weeds and fine-cord weeds without substantially causing chemical damage to unwanted crops, especially useful grains such as rice and corn, and therefore not substantially inhibiting their growth. It is an object of the present invention to provide selective herbicides and methods for eradicating herbicides.

Another object of the present invention is to provide a herbicide and method that can suppress or exterminate the growth of target plants even when the application amount per unit area is small, for example, 1001 per 10 ares or less. ``'f''.

Still another object of the present invention is to kill or suppress the growth of not only broad-leaved weeds but also some fine-cord weeds by acting on the buds after germination, and thus to suppress the growth of useful crops such as rice or corn and harmful weeds. To provide a selective herbicide and method capable of forming a state in which the growth of non-useful weeds tends to outgrow the growth of noxious weeds in areas where weeds coexist.
be.

Still another object of the present invention is not only to kill or suppress the growth of weeds targeted for weeding by spraying them on the leaves of the weeds, but also to spray them on the soil before germination to produce useful crops. To provide a selective herbicide and method capable of suppressing the germination of M grass without substantially inhibiting the germination of M grass, that is, a selective herbicide that can be applied by both foliar spraying and soil treatment. It is in.

Still another object of the present invention is to provide a selective herbicide and method with low kinetic and acute toxicity.

Further objects and advantages of the present invention &1 will become apparent from the following description.

Structure and Effects of the Invention A phenoxy compound (compound 1) represented by the general formula CI) 110-, and a carbamate compound (compound-B) represented by the general formula CB) This is achieved by a herbicidal composition containing as the main active ingredient.

(I) Compound (4); The above-mentioned compound of general formula (1) is the same as described in the specification of Japanese Patent Application No. 1983-3646 (filed on January 13, 1986) previously proposed by the present inventor. Although the compound can be used as it is, its contents will be briefly explained below.

In the above general formula (I), X is α or -CF, and Y is α or -CF. It is necessary for X and Y to be these atoms or groups in order to achieve the object of the present invention, and either or both are, for example, hydrogen atoms, or α, CF, i4 CHs
In the case of other groups, the herbicidal activity 1 selectivity decreases.

Compounds in which X and Y are both KC1, or in which X is α and Y is -Cl are preferred.

2 is a divalent saturated or unsaturated aliphatic hydrocarbon group having 4 or less carbon atoms. This destructive hydrogen group may be linear or branched. For example, -〇H
a *■ C crosspiece 10 ru CH=CH- or -CB-CM-Ck#CH-
is preferable.

In particular, when X and Y are both α, 2 is preferably -(J&-, and when X is α and Y is -CI-, 2 is Hs alkylene having 1 to 3 carbon atoms. , for example, -CB, -, -CH- or -CH,C-.

In the above general formula [I], R1 is a hydrogen atom, a saturated aliphatic hydrogen group with a JR prime number of 4 or less, a phenyl group (-Q), a benzyl group (-C), β-methylthioethyl 4 ( −
CaCH,8C), human μxymethyl (-CR0)1
), a-human-xyethyl CM.

(-CHOH1, hydroxyphenylmethyl or benzylthiomethyl (-CH4scaQ)>.

The above-mentioned saturated aliphatic hydrocarbon group having a vertical prime number of 4 or less may be linear or may have a #t@ shape. Specifically, methyl 1 ethyl + n-propyl + Igo-propyl + n-
zutyl, 1ao-methyl, dai-methyl and tart
-Butyl.

Among the above, BI is water bulk atom, methyl.

Ethyl, n-propyl + 1ao-propyl sn-butyl + 1so-butyl, &cc-butyl, t-butyl 9
Phenyl-benzyl or I-methylthioethyl is preferred.

W is -OW or -N; preferably -OR island.

R' is a phenyl group or ammonium which may be interrupted by an oxygen atom and may have a substituent; It is a cation (in this case, the -C00 group to which the ammonium cation is attached is naturally an anion).

Examples of the aliphatic hydrocarbon group having a vertical prime number of 15 or less include methyl, ethyl, and n-propyl.

In-propyl + n-phthyl, in-sutil 1-rich butyl + tart-butyl, n-pentyl.

Iso-pentyl, n-hexyl, n-octyl + n-nonyl n-decyl, n-cundecyl, n-dodecyl*n
)! Examples include J tetradecyl In-tetradecyl+n-pentadecyl.

The aliphatic swollen hydrogen group having a vertical prime number of 15 or less may be linear or chain-like as described above. In addition, examples of aliphatic hydrocarbon groups interrupted by an oxygen atom include, for example, =CCTR0CfJ, -C shallowC,OCCH,-, =
C connection OCR, C remaining OC 几.

-CH2C Showa Cru Cru or4c8 etc. are mentioned.

Examples of substituents for these aliphatic hydrocarbon groups include phenyl group, tolyl group, hydroxyl group, etc.

Examples of the substituent of the phenyl group which may have a substituent include a halogen atom such as aS, or an alkyl group having an IR prime number of 1 to 5.

R1 is an unsubstituted aliphatic hydrocarbon group with a vertical prime number of 15 or less, an aliphatic hydrocarbon group having phenyl or hydroxyl as a substituent, or a carbon number of 10 or less which may be interrupted by an oxygen atom. It is preferably an unsubstituted aliphatic hydrocarbon group, a phenyl group, or a phenyl group substituted with chlorine or an alkyl group having 1 to 5 vertical primes.

More preferably, W is an alkyl group having a vertical prime number of 1 to 6.

The ammonium cation is, for example, a group represented by the following formula. The alkyl group having a vertical prime number of 1 to 6 may be linear or branched, such as methyl, ethyl, n-propyl + 1so-propyl + n-butyl, 1so-butyl, 5ec-butyl In- pentyl+fl-hexyl, etc.

The difference is a water bulk atom, a saturated aliphatic swollen hydrogen group having 6 or less carbon atoms, or a hydrogen hydride having 5 to 70 carbon atoms. Examples of saturated aliphatic hydrocarbon groups having 6 or less carbon atoms will be clear from the example of W above. Alicyclic hydrocarbons having 5 to 7 carbon atoms are cyclopentyl, cyclohexyl and cycloheptyl. W and R1 are the same or different, and hydrogen atoms are methyl and ethyl.

Cyclopentyl, cyclohexyl or cycloheptyl.

Also, W and W are together 1i which is their combination
Together with the ax atom, a 5- to 7-membered ring which may further contain a pete p atom may be formed.

W and W are the same trap, for example +CH, +,.

Ren 搗), (C几+, 0+C tamehnu can form (-CImu 9 朲pil 9).

W is a water X atom, a saturated aliphatic aspect ratio hydrogen group having 4 or less carbon atoms, or W together with R1 is -CI (lC-C residue- or -.H, cB 6
It may form n-. An example of a saturated aliphatic hydrogen group having a jR prime number of 4 or less will be clear from the above example of R1.

W is preferably a hydrogen atom, methyl, ethyl In-propyl, n-butyl*imo-butyl or t@rtP-butyl, or R6 together with R1 is - CImuCI(,C residue-nuH forms -C)muCruCH-.

n is 0.1 or 2, and when n is 00, it is understood that -CH- and -Colt'' are directly bonded. n is preferably 0.

In the above-general formula [I] This is the skeleton part of the aminocarbon hR# conductor.

The aminocarboxylic acid of such a derivative can be an a+, β- or r7 amino acid, depending on the value of n.

An example of such an amino acid is I! Glycine, 7 rani/-valine! α-Amino acids such as inleucine/Ip, cysteine, methionine, phenylalanine, phenylleglycin, serine, threonine, purulin: NruCH,
C) MU C0OH, N Peng C 搗 9 C0OH.

Nru CHCH, C0OH, N搗CHC le cocoon.

to N〇HCI (β- or r expressed as J3COOH
- Can you give a concrete example?

5 of the above amino acids, glycine t7 ranine 9β-7 ranine t valine 9 inleucine, I:I is/, methionine, phenylalanine, and phenylglycine are 7ξ of the present invention.
) Particularly preferred for acid derivatives.

Specific compounds of the present invention having the above general formula (I) will be shown below, but these are for the purpose of understanding the present invention, and the present invention is not limited thereto.

CH.

α C 几C4 le α sHs ρ− CH,C,ya α cH.

6 le C’Ha C)ia C le CaHm C,H.

CH*esHs CH3 Compound [B]; The above-mentioned compound of general formula (II) is a compound known as a carbamate herbicide.
024. U.S. Patent No. 3,185.720, 3119
(Refer to No. 8.786, No. 2.91a, No. 27)) It is absorbed from the young shoots of weeds, the young shoots that have grown a little, and the X leaves, suppresses cell division by inhibiting protein synthesis, and suppresses barnyard grass. It is known that it inhibits the growth of weeds, especially
(See "Herbicide Research Institute 5e Overview" by Tetsuo Takematsu, p. 229).

In the above formula (If), W and "are the same or different and are a hydrogen atom or a saturated aliphatic hydrocarbon group having 4 or less carbon atoms, or R and W together,
Together with the nitrogen atom to which they are bonded, they may form a 5- to 7-membered heterocycle.駁F21X#! The aliphatic hydrocarbon group with a saturated weight of 1.4 or less is a hydrocarbon group having a straight chain or a public chain, such as methyl group, ethyl group, n-propyl group + 1so-propyl group, n-propyl group,
-butyl group, ig.

-butyl group, 5ec-butyl group + tart-butyl group, and the like are combined water groups. Also, along with the nitrogen atom, 5~
As for the aliphatic hydrocarbon X paper that forms a 7-membered heterocyclic ring,
For example -CI(2CH2CruC几-9-CH,C)1
&CH, CH□CImu, -CH,C几C鴇C应CleCru, etc.

Ro is a saturated aliphatic hydrocarbon group having 4 or less carbon atoms, or has the formula -cyWnl (where m=O, W
is a hydrogen atom. W is a halogen atom, and 9m is an integer between θ and 4. ).

#An example of the saturated aliphatic hydrocarbon 1 having 4 or less carbon atoms can be easily identified in the above-mentioned W section. , and the formula -Cf
In the group represented by 1 (・[, the halogen atom is fluorine, chlorine, or bromine, and chlorine is particularly preferably used.Formula ()'' is a carbamate system of the 1-order formula (n) used in the present invention. Among herbicides, for example, S-ethyl N, N-diethyl thiocarmemate (-generic name: ethiolate) S-propyl N, N-dipropyl thiocarbamate 26
1 (-grain temperature; pel/rate) S-ethyl N,N-dibu-virthiocarbamate (-
Grain temperature; EPTC) S-Ethyl N, N-diynbutyl thiocarbamate (-
Grain temperature: butyrate) S-propyl N-butyl-N-ethylthiocarbamate (-grain temperature; pelate) 3.4-didichlorobenzyl N-methylcarbamate (-grain temperature; dichromate) S-(4-ri pp benzyl) N,N-diethylthiocarbamate (-grain temperature; penthiocarb) S-(2-chloroRbenzyl)N,N-diethylthiocarbamate (-grain temperature; ortope/carb) S-be/zyl N,N -G-dai-butylthiocarbamate (-grain temperature; thiocarbasil), S-ethylpercht-azepine-1-carbothioate (-grain temperature; molinate), and the like are preferably used.

When the purpose of the composition of the invention is to suppress or exterminate the growth of harmful plants, apply the composition of the invention to a place where the plant to be weeded or its dianthus and the beneficial plant or its seeds coexist or are likely to coexist. By applying it in an amount sufficient for weeding, it is possible to selectively suppress or exterminate the growth of the plants or their seeds to be weeded.

For example, 1 the composition of the present invention is applied to a place where rice or corn as a beneficial plant is grown or where it is intended to be used for the growth of the same beneficial plants, in order to kill weeds that are growing or likely to grow in the place. It can be applied in an amount sufficient to weed the plants.

The plants you are trying to weed are common! ! This is an F plant.

Beneficial plants are generally those that enter from the surrounding natural world and reproduce in environments created by humans, such as fields.
It can be said to be a plant that has been deemed useless or harmful in its environment by humans. Such harmful plants are generally referred to as weeds.

Target weeds include, for example, various weeds that belong to the family 1 shown in T1.

(b) Gravineae; Sorghum halepense
Oat (Avena fatua) Digltaria adscend
ens Hanr) Aki/x/: lagusa (5sta
rfa fab+erf) 2 ampaggi (
Agropyron repens) Texas banicum (Panicum tsxanum) Golden millet (
Echinochloa cruI-gallt) Echinochloa cruI-gallt (5etari4 viricHm
) Poa annum ) Eleumins indicm
) carpet grass (Aronopus affln
im )Merikennikkipi (Bachlaria p
latyphyllm) Umanochahiki (Bro
mua tectorum) Gyugishipa (C
ynodon daetylon)
(Panicum dichotomiflorum
) Striped Sparrow-r-CPmspalum dfl
atmtum) Eehinoc
hloa eolona) Pa.
nieum emplilare) Golden Elephant Ci
(5etaria faberl) Alopecurus acqualia 8
obol.

war, amurenaia Ohwi) (ro)
Amaranthus ratrofl
exag L, ) Golden millet (Amaranthug)
l1vidus Loiie I ) (c) Convolvulaea @ ; Cumcuta joponjea Cho
iay ) to) Polygonaceae
) ; Polygonum co
nvolvulua L, ) Willow knotweed (Po
lygonum hydropiper L,) Polygonum 1apathlfo
Ijum L, ) to) Chenopodiaceae (Ch@nopod
iaceae) ;nμza (Chenop
dium album L, ) Akagi (C
henopodium album L, var.

centrorubrum %akino) Chenopodium ficifoli
um Sm1th) (to) Portulaceae (Portu)
lacieeaa) ; Portula
ea oleracea L,) (g) Fabaceae (Le
guminosae) ; Shuzuhagi (Des
modium tortuosum) (a) Malvaceae;
Abutilon theophrasti) Golden Deer (5ida 5plnosa) (
Solanum nfgrum L, Solanum nfgrum L, Datula strum
onium L, )shi) Asteraceae (Composite
es) x Himedione (Er1g5ron an
nug L,) Ambrosi
a artsmigiaefolia L.

war-slator Demc,) Onamomi (Xanthlum atrumri)
um L,) Seiyou Togeaza! (Clrajum
arvsnss var, satomum)Ql
Plantaginaceae e
Plantago asiatica L,
)0) Cyperaceae (Cyperae@ae)
;Cyperua rotundu
a L, ) Mizuriki Yari (Cyperua 5e
rotInus Rottb, ) Firefly
(5eirpus hotarui Ohwi) manbai (Eleocharjs acidular
is Roem.

at 5chult, var, longjsetaSv
enson) (A. ttaria Pygma);
ea , MIq , )ψ) Mizu7idae (Pont
ederiaeeaa); Konagi (Mo
nochoria vaginalla Preal
, ) In the above case, the beneficial plants are, for example, grain crops or lawns. In particular, the composition of the present invention has no or almost no effect on the growth of rice and corn, and is therefore extremely suitable for application in these days and fields. Furthermore, by applying it to areas where lawns are growing, it is possible to inhibit the germination and growth of weeds.

In some cases, while the harmful plant has not yet grown large, the
It is desirable to apply the composition of the present invention before the height of the harmful plants is slightly higher than, or does not exceed, the height of the undesirable plants.

The herbicidal composition of the present invention exhibits excellent herbicidal activity against broad-leaved annual weeds and perennial weeds, and also exhibits herbicidal activity against narrow-leaved weeds. In addition, when present, it exhibits sufficient herbicidal activity against perennial weeds with narrow leaves such as those of Japanese sedge. Examples of weeds that exhibit particularly excellent herbicidal activity include the Compo
mtiaa) For example, Himedion Koshi (Erigeron
lpp, ) + Chenopodiaceae (Chanopodiacea)
s+e) +Polygonaceae (polygo naeaae)
) + Solanaceae (5olanae as ) + Hydraaceae (
Ammranthaceae)
aceas) + Plantaginaee
aeLFabaceae (Legumnoaae) + Convolvulaceae + Poaceae (Graminaceae)
mlneaa), etc.

Specific examples include the crabgrass, the sparrow, the dogfish, the dogfish, the Japanese grasshopper, the red foxtail grass, the red foxtail grass, and the yellowtail grass.
Enokorogusa meeting/Enoko p, buckwheat, sanaetade, pigweed, whiteweed.

These include the Japanese black-and-white lily, the American horned beetle, the American black-and-white tree, the American kingfisher nine, the white-breasted morning glory, the white-spotted lily, the white-spotted flower, the white-breasted morning glory, the white-spotted lily, the white-spotted lily, and the onion fir.

Herbicide composition 1' of the present invention! , the above general formula CI), (compound A) and - general formula [''] (compound (11)) are used in the form of a mixture.In use, the composition of each component in the composition is as follows: Although it depends on the relative activity of the above two components, the type of plant, etc., the ratio of Compound A to Compound B is generally in the range of 99 to 99:1, preferably 10:1. 90-90:] Contained in the range of 0.

The actual amount of the core composition to be applied depends on a number of factors, such as the growth inhibition of the particular target plant, but is generally 0.005 to 5 h/10 m.
, preferably o, o 1 to 0.5 #/]Oa. Those skilled in the art can easily determine the appropriate proportion and amount to use by standard and routine tests without carrying out a particularly large number of experiments.

The mixtures according to the invention can also be applied in the form of compositions in which the active ingredient is mixed with a carrier consisting of a solid or liquid diluent. Additionally, the composition may further contain additives such as surfactants.

According to the present invention, it is also possible to weed by mixing the compounds as a composition.

These compounds can also be applied separately in any order. In that case as well, the ratio and application amount of compound (8) and compound 03) are appropriately within the ranges described above.

The composition of the present invention can be incorporated into a solution by containing it together with a carrier and/or a surfactant.

It can be used as a preparation in a conventional form such as an emulsion, suspension, powder, paste or granule.

Such formulations are available, for example, from Merck, Bentonite 9 Kreit
Kaolin - diatom white carbon.

Solid carriers such as vermiculite, slaked lime, ammonium sulfate, urea;
Liquid carriers such as water, alcohol ψ dioxane t acetone t xylene cyclohexane/l methylnaphthalene, dimethylformamide, etc.; alkyl *# esters, furkylsulfonates 1 lignin sulfonates, polyoxyethylene glycol ethers, polyoxyethylene alkyl Surfactants, emulsifiers or dispersants such as aryl ether, polyoxyethylene rubitan heptanoalkylate, dinaphthylmethane disulfonate; 19 or 2 parts 1 or more of each woodcutter auxiliary such as carboxymethyl cellulose, gum arabic, etc. N[is done using]

That is, such a formulation 1! , for example, compounds A and B
It can be prepared by mixing a finger body and/or an emulsifier body as described above.

Composition i of the present invention is characterized in that compounds A and B are usually present in the formulation at 0%.
．． It may be present in an amount of 0.01 to 99% by weight, preferably 0.1 to 96% by weight.

The compositions of the invention may be used, as such or in admixture with other active compounds, or in the form of formulations as mentioned above, as appropriate by spraying, atomizing, dusting or dusting.
It can be applied to plants by conventional methods such as ting).

The present invention will be explained in detail with reference to Examples below.

Examples Middle means parts by weight. In addition, herbicidal activity was evaluated on a 6-grade scale unless otherwise specified. In other words, 0 indicates that the plant is in almost the same healthy state as before the application of the active compound, 5 indicates that the entire plant has withered and died due to the application of the active compound, and 4 levels of MIK are applied depending on the condition of the plant. HI (1, 2, 3 and 4) were set and evaluated.

Example: Add 1 part of the herbicidal composition a of the present invention (a mixture containing compounds A and B in a predetermined ratio) to 5,000 parts of a mixed solvent of amethane and water (volume ratio 1:1).

In addition, a nonionic surfactant (product name: Full Ball 268
0) 2.6 parts were added to prepare a solution.

Compound A and Compound B contained in the herbicidal composition of the present invention were also prepared in the same manner and used as a comparison. Also, for these compounds A and B, %
The compound synthesized by the method described in Japanese Patent Application No. 61-3646 and Japanese Patent Publication No. 43-29024 was used.

However, the symbols ■ to ■ shown by the plants in the table each mean the following.

■ Mehishino 2 ■ Sparrow gnome ■　Pigweed ■Hyu ■ Ichibi ■ Dogweed Physalis ■ Himedion ■ Plantain ■　Corn Example The herbicidal composition of the present invention was prepared according to Preparation Example 1.

The plants used were seeds sown in soil and cultivated for 2 to 3 weeks after germination.

The herbicidal composition of the present invention was applied to the plants in amounts of compounds A and B as shown in the table, and cultivation continued for 3 weeks without applying any preparation. The results are shown in Table IK.

Claims (1)

[Claims] 1. (A) The following general formula [I] ▲There are mathematical formulas, chemical formulas, tables, etc.▼... [I] [Here, X is Cl or CF_3; Y is Cl or CH_3 Z is a divalent saturated or unsaturated aliphatic hydrocarbon group having 4 or less carbon atoms; R^1 is a hydrogen atom, a saturated aliphatic hydrocarbon group having 4 or less carbon atoms, phenyl, benzyl, A group selected from the group consisting of β-methylthioethyl, hydroxymethyl, α-hydroxyethyl, hydroxyphenylmethyl, mercaptomethyl, and benzylthiomethyl; R^2 is a group OR^3 or a group ▲ mathematical formula, chemical formula, table, etc. is ▼; R^3 is an aliphatic hydrocarbon group having 15 or less carbon atoms which may be interrupted by an oxygen atom and which may have a substituent, or phenyl which may have a substituent. group or ammonium cation; R^4 and R^5 are the same or different and are a hydrogen atom, a saturated aliphatic hydrocarbon group having 6 or less carbon atoms, or a saturated aliphatic hydrocarbon group having 5 or less carbon atoms;
-7 alicyclic hydrocarbon group, or R^4 and R^3 together are 5- to 7-membered which may further contain a heteroatom along with the nitrogen atom to which they are bonded. It may form a ring. R^4 is a hydrogen atom or a saturated aliphatic hydrocarbon having 4 or less carbon atoms, or R^6 is combined with R^1 to form -CH_2CH_2C
H_2- or ▲There are mathematical formulas, chemical formulas, tables, etc.▼ may be formed. n is 0, 1 or 2. ] A phenoxy compound (compound A) represented by (B) The following general formula [II] ▲ There are mathematical formulas, chemical formulas, tables, etc. ▼…………………… [II] [Here, R^7 and R^8 are the same or different, and are a hydrogen atom, a saturated aliphatic hydrocarbon group having 4 or less carbon atoms, or R^7 and R^8 together, together with the nitrogen atom to which they are bonded, have 5 to 7 carbon atoms. It may form a membered heterocycle. R^9 is a saturated aliphatic hydrocarbon group having 4 or less carbon atoms or ▲There are mathematical formulas, chemical formulas, tables, etc.▼ (where W is a halogen atom and m is an integer from 0 to 4). Q represents -O- or -S-. ] A herbicidal composition containing a carbamate compound (compound B) represented by the following as a main active ingredient. 2. The compound A and the compound B are 1:99 to 99 by weight.
The herbicide composition according to item 1, containing the herbicide composition in a ratio of: 1. 3. (A) The following general formula [I] ▲There are mathematical formulas, chemical formulas, tables, etc.▼……[I] [Here, X is Cl or CF_3; Y is Cl or CH_3; Z is divalent is a saturated or unsaturated aliphatic hydrocarbon group having 4 or less carbon atoms; R^1 is a hydrogen atom, a saturated aliphatic hydrocarbon group having 4 or less carbon atoms, phenyl, benzyl, β-methylthioethyl, hydroxy A group selected from the group consisting of methyl, α-hydroxyethyl, hydroxyphenylmethyl, mercaptomethyl and benzylthiomethyl; R^2 group OR^3 or a group ▲ has a mathematical formula, chemical formula, table, etc.; ^3 is an aliphatic hydrocarbon group having 15 or less carbon atoms which may be interrupted by an oxygen atom and which may have a substituent, a phenyl group which may have a substituent, or an ammonium cation; R^4 and R^5 are the same or different, and are a hydrogen atom, a saturated aliphatic hydrocarbon group having 6 or less carbon atoms, or a saturated aliphatic hydrocarbon group having 5 carbon atoms
~7 alicyclic hydrocarbon groups, or R^4 and R^5 together are 5- to 7-membered which may further contain a heteroatom along with the nitrogen atom to which they are bonded. It may form a ring. R^6 is a hydrogen atom or a saturated aliphatic hydrocarbon having 4 or less carbon atoms, or R^6 together with R^1 forms -CH_2CH_2C
It may form H_2 or ▲There are mathematical formulas, chemical formulas, tables, etc.▼. n is 0, 1 or 2. ] A phenoxy compound (compound A) represented by (B) The following general formula [II] ▲ There are mathematical formulas, chemical formulas, tables, etc. ▼…………………… [II] [Here, R^7 and R^8 are the same or different and are hydrogen atoms, saturated aliphatic hydrocarbon groups having 4 or less carbon atoms, or R^7 and R^8 together, together with the nitrogen atom to which they are bonded, are 5- to 7-membered It may form a heterocyclic ring. R^9 is a saturated aliphatic hydrocarbon group with 4 or less carbon atoms, or ▲a mathematical formula, chemical formula, table, etc.▼ (where W
represents a halogen atom, and m represents an integer of 0 to 4. ). Q represents -O- or -S-. ] The carbamate compound represented by (compound B) is used to weed the seeds, stems, leaves, and roots of the plants to be weeded simultaneously or in any order, or where the plants are growing or where the plants are expected to grow. A weed control method characterized by applying a sufficient amount to kill weeds to the location where the weeds are to be removed.