| abstract |
Methods of combating pests with substituted pyrimidines of the formula I (see formula I) where R1 is alkyl, cycloalkyl, haloalkyl, alkoxy, alkylthio or substituted or unsubstituted aryl, R2 is halogen or hydrogen, A is oxygen or sulfur, and X is CH or N, and pyrimidines of the general formula Ia (see formula II) where A is oxygen or sulfur and X is CH or N, and pesticides containing these compounds. |