Method of combating the palms weevil red.

摘要

Process for protecting palm trees against attack by certain insects comprises applying a 1-arylpyrazole of formula (I) to the trees. R1 = CN or Me; R2 = SOnR3; R3 = alkyl or haloalkyl; R4 = H, halo, NR5R6, SOmR7, COR7, alkyl, haloalkyl, OR8 or N=CR9R10; R5, R6 = H, alkyl, haloalkyl, alkanoyl or SOrCF3, or R5+R6 = divalent alkylene optionally interrupted by one or two divalent heteroatoms such as O or S; R7 = alkyl or haloalkyl; R8 = H, alkyl or haloalkyl; R9 = H or alkyl; R10 = phenyl or heteroaryl optionally substituted by halo, OH, alkoxy, alkylthio, CN and/or alkyl; X = N or CR12; R11, R12 = H or halo; R13 = halo, haloalkyl, haloalkoxy, SOqCF3 or SF5; m, n, q, r = 0-2; provided that R3 = haloalkyl, R4 = NH2, R11 = Cl, R13 = CF3 and X = N when R1 = Me.