The present invention relates to a method for controlling invertebrate pests which method comprises treating the pests, their food supply, their habitat or their breeding ground or a plant, seed, soil, area, material or environment in which the pests are growing or may grow, or the materials, plants, seeds, soils, surfaces or spaces to be protected from pest attack or infestation with a pesticidally effective amount of a pyrazole compound of formulae I or II or a salt or an N-oxide thereof, wherein A is a pyrazole radical of the formulae A1 or A2, wherein # denotes the binding; D is a 5- or 6-membered heterocyclic radical fused to the pyrazole moiety; Rp1, Rp2 and Rpx are H, halogen, CN, NO2, C1-C10-alkyl, C2-C10-alkenyl, C2-C10-alkynyl, etc.; n is 0 to 4; or two radicals Rpx bound to the same ring-member may form an oxo substituent, or two radicals Rpx bound to adjacent ring-members may form a 3- to 7-membered fused cyclic radical; B is N or CR4, wherein R4 is H, halogen, CN, NO2, C1-C4-alkyl, C1-C4-haloalkyl, C1-C4-alkoxy, etc.; X1 is S, O or NR1a, wherein R1a is H, C1-C10-alkyl, etc.; X2 is O2a, NR2bR2c or S(O)mR2d, wherein m is 0, 1 or 2; R2a is C1-C4-alkyl, C1-C4-haloalkyl, C3-C6-cycloalkyl, etc.; R2b, R2c are H, C1-C4-alkyl, C1-C4-haloalkyl, C3-C6-cycloalkyl, etc.; R2d is C1-C4-alkyl, C1-C4-haloalkyl, C3-C6-cycloalkyl, etc.; R1 is H, CN, C1-C10-alkyl, C1-C10-haloalkyl, C3-C10-cycloalkyl, etc.; R2, R3 and R5 are H, halogen, CN, NO2, C1-C4-alkyl, C1-C4-haloalkyl, C1-C4-alkoxy, etc., to a method for protecting plant propagation material and/or the plants which grow threfrom, to plant propagation material comprising at least one compound of formulae I or II, to a method for treating or protecting an animal from infestation or infection by parasites, to novel pyrazole compounds of formulae I or II and agricultural composition containing those compounds.