COMPOUNDS OF FORMULA (I), COMPOSITION, METHODS OF PROTECTION OF CROPS AND COMBAT, NON-THERAPEUTIC METHOD OF TREATMENT, SEED, USE OF COMPOUNDS AND USE OF COMPOUND

摘要

mesoionic imidazolium compounds of the formula (i) and their use to combat animal pests. the present invention relates to compounds of the formula (i): in which w, t, r1, r2 and r3 are as defined in the specification and their stereoisomers, salts, tautomers and n-oxides, as well as compositions comprising these compounds . the present invention also relates to methods and uses of these compounds and their compositions for combating and controlling animal pests. moreover, the present invention also relates to pesticidal methods of applying such substituted pyrimidinium compounds.