The present invention belongs to the technical field of pesticides, and in particular relates to a pyridazinol compound, a derivative thereof, a preparation method therefor, a herbicidal composition and the use thereof. The pyridazinol compound is as represented by general formula I,

##STR00001##

wherein X represents

##STR00002##

and the ring is an unsubstituted or substituted aryl or unsubstituted or substituted heterocyclyl containing a carbon atom at the 1-position; Y represents haloalkyl; and Z represents halogen, cyano, hydroxy, etc. The derivative refers to an agriculturally acceptable derivative of the hydroxyl group at the 4-position of the pyridazine ring in the general formula I, including a salt, an ester, an oxime, a hydroxylamine and an ether derivative, etc. The compound, the derivative thereof and the composition thereof have good herbicidal activity and crop safety.

A combination including a dithiocarbamate fungicide, a succinate dehydrogenase fungicide and at least one of ergosterol biosynthesis inhibitor fungicide or a quinone outside inhibitor fungicide.

A combination including a dithiocarbamate fungicide, a succinate dehydrogenase fungicide and at least one of ergosterol biosynthesis inhibitor fungicide or a quinone outside inhibitor fungicide.

The present invention relates to a compound selected from formula (I) and a process for preparing the same

##STR00001##

wherein, R.sup.2, R.sup.3, A, Hy, K, n, m, X.sup.1, and W.sup.1 are as defined in the description.
The invention also relates to the combination and composition comprising the compound of formula (I).

The present invention relates to a compound selected from formula (I) and a process for preparing the same

##STR00001##

wherein, R.sup.2, R.sup.3, A, Hy, K, n, m, X.sup.1, and W.sup.1 are as defined in the description.
The invention also relates to the combination and composition comprising the compound of formula (I).

The present invention provides herbicide-tolerant plants. The present invention also provides methods for controlling the growth of weeds by applying an herbicide to which herbicide-tolerant plants of the invention are tolerant. Plants of the invention may express an acetyl-Coenzyme A carboxylase enzyme that is tolerant to the action of acetyl-Coenzyme A carboxylase enzyme inhibitors.

The present invention relates to a novel and synergistic agrochemical combination. The present invention provides agrochemical combination comprising a synergist and an herbicide or a fungicide and compositions thereof especially for controlling weeds and fungi.

The present invention relates to a novel and synergistic agrochemical combination. The present invention provides agrochemical combination comprising a synergist and an herbicide or a fungicide and compositions thereof especially for controlling weeds and fungi.

The present invention relates to the technical field of crop protection products, especially that of herbicides for control of broad-leaved weeds and weed grasses in crops of useful plants.

Specifically, this invention relates to novel substituted [(1,4,5-trisubstituted 1H-pyrazol yl)sulfanyl]acetic acid derivatives of the formula (I) or an agrochemically acceptable salt thereof, to processes for preparation thereof and to the use thereof as herbicides.

The present invention relates to the technical field of crop protection products, especially that of herbicides for control of broad-leaved weeds and weed grasses in crops of useful plants.

Specifically, this invention relates to novel substituted [(1,4,5-trisubstituted 1H-pyrazol yl)sulfanyl]acetic acid derivatives of the formula (I) or an agrochemically acceptable salt thereof, to processes for preparation thereof and to the use thereof as herbicides.