Compounds of the formula (I), wherein the substituents are as defined in claim 1, useful as pesticides, especially as fungicides.

##STR00001##

The invention relates to the technical field of pesticides, and in particular to a type of 3-isoxazolidinone compound, as well as a preparation method, a herbicidal composition and an application thereof. The 3-isoxazolidinone compound is as shown in Formula I:

##STR00001## wherein, Q.sub.1 and Q.sub.2 each independently represent O or S; R.sub.1 and R.sub.2 each independently represent alkyl. The present compounds have superior crop safety while maintaining comparable or even better herbicidal activity, thus they are more selective in crops. Moreover, the compounds of the present invention have better anti-volatility to avoid drift.

The invention relates to the technical field of pesticides, and in particular to a type of 3-isoxazolidinone compound, as well as a preparation method, a herbicidal composition and an application thereof. The 3-isoxazolidinone compound is as shown in Formula I:

##STR00001## wherein, Q.sub.1 and Q.sub.2 each independently represent O or S; R.sub.1 and R.sub.2 each independently represent alkyl. The present compounds have superior crop safety while maintaining comparable or even better herbicidal activity, thus they are more selective in crops. Moreover, the compounds of the present invention have better anti-volatility to avoid drift.

The present invention relates to the compounds of formula (I) wherein the variables are defined as given in the description and claims. The invention further relates to their use and composition.

##STR00001##

The present invention relates to the compounds of formula (I) wherein the variables are defined as given in the description and claims. The invention further relates to their use and composition.

##STR00001##

The present invention relates to liquid termiticide compositions comprising a pyrethroid and a neonicotinoid selected from the group consisting of imidacloprid, nithiazine, thiamethoxam, dinotefuran, nitenpyram, thiacloprid and clothianadin, these compositions result in an increase in termite mortality at low application rates and a continuous chemical barrier of a termiticide in soil surrounding and beneath a structure in a locus where termites are suspected or known to exist.

The present invention relates to liquid termiticide compositions comprising a pyrethroid and a neonicotinoid selected from the group consisting of imidacloprid, nithiazine, thiamethoxam, dinotefuran, nitenpyram, thiacloprid and clothianadin, these compositions result in an increase in termite mortality at low application rates and a continuous chemical barrier of a termiticide in soil surrounding and beneath a structure in a locus where termites are suspected or known to exist.

The present invention relates to novel N-arylamide-substituted trifluoroethyl sulfide derivatives of the formula (I) ##STR00001## in which X.sup.1, X.sup.2, X.sup.3, X.sup.4, R.sup.1, R.sup.2, R.sup.3, n have the meanings given in the descriptionto their use as acaricides and insecticides for controlling animal pests and to processes and intermediates for their preparation.

The present invention relates to novel N-arylamide-substituted trifluoroethyl sulfide derivatives of the formula (I) ##STR00001## in which X.sup.1, X.sup.2, X.sup.3, X.sup.4, R.sup.1, R.sup.2, R.sup.3, n have the meanings given in the descriptionto their use as acaricides and insecticides for controlling animal pests and to processes and intermediates for their preparation.

A species of Burkholderia sp with no known pathogenicity to vertebrates but with pesticidal activity (e.g., plants, insects, fungi, weeds and nematodes) is provided. Also provided are natural products derived from a culture of said species and methods of controlling pests using said natural products.