The present invention relates to novel heteroaryl-substituted pyrazine derivatives of the general formula (I), in which the structural elements R.sup.1, R.sup.2, R.sup.3, R.sup.4, R.sup.5 and R.sup.6 have the meaning given in the description, to formulations and compositions comprising such compounds and for their use in the control of animal pests including arthropods and insects in plant protection and to their use for control of ectoparasites on animals.

##STR00001##

The present invention relates to novel heteroaryl-substituted pyrazine derivatives of the general formula (I), in which the structural elements R.sup.1, R.sup.2, R.sup.3, R.sup.4, R.sup.5 and R.sup.6 have the meaning given in the description, to formulations and compositions comprising such compounds and for their use in the control of animal pests including arthropods and insects in plant protection and to their use for control of ectoparasites on animals.

##STR00001##

Compounds of formula (I)

##STR00001##

as defined herein, to processes for preparing them, to pesticidal, in particular insecticidal, acaricidal, molluscicidal and nematicidal compositions comprising them and to methods of using them to combat and control pests such as insect, acarine, mollusc and nematode pests.

Compounds of formula (I)

##STR00001##

as defined herein, to processes for preparing them, to pesticidal, in particular insecticidal, acaricidal, molluscicidal and nematicidal compositions comprising them and to methods of using them to combat and control pests such as insect, acarine, mollusc and nematode pests.

The present application relates to the use of heterocyclic compounds for controlling animal pests including arthropods, insects and nematodes, to novel heterocyclic compounds, to processes for their preparation and to intermediates for preparing the heterocyclic compounds.

The present application relates to the use of heterocyclic compounds for controlling animal pests including arthropods, insects and nematodes, to novel heterocyclic compounds, to processes for their preparation and to intermediates for preparing the heterocyclic compounds.

Compounds of formula (I) wherein the substituents are as defined in claim 1, useful as plant growth regulators and/or seed germination promoters.

##STR00001##

Compounds of formula (I) wherein the substituents are as defined in claim 1, useful as plant growth regulators and/or seed germination promoters.

##STR00001##

The subject matter described herein is directed to compounds, synergistic compositions, and methods for repelling arthropods, such as insects. The compositions comprise aryl and pyridyl-type compounds. The compounds demonstrate strong vapor and topical repellency when applied alone and in synergistic compositions.

The subject matter described herein is directed to compounds, synergistic compositions, and methods for repelling arthropods, such as insects. The compositions comprise aryl and pyridyl-type compounds. The compounds demonstrate strong vapor and topical repellency when applied alone and in synergistic compositions.