Abstract:
The present invention relates to azoline compounds and their salts which are useful for combating arthropod pests. The present invention also relates to a method for combating arthropod pests and to agricultural compositions for combating said pests. It has been found that these objectives can be achieved by azoline compounds of the general formulae Ia or Ib, wherein X is S, O or NR4; Ar is phenyl or a 5 or 6 membered heteroaromatic ring; R1 is H, C1-C6-alkyl, C2-C6-alkenyl, phenyl, a heteroaromatic ring etc.; R2a, R2b are H, CN, C1-C6-alkyl etc.; R1 together with R2a may also form a linear C2-C4-alkandiyl; R3a-d are H, halogen, C1-C6-alkyl etc.