Pesticidal compositions

A method for the control of pests at a locus, which method comprises applying thereto a pesticidally effective amount of a compound which is a 4-spirocyclic pyrazole of formula (I):

• 10
• wherein:
• R1 is alkyl, haloalkyl, NH2, CN, CSNH2, NO2 or halogen;
• W is N or CR6;
• R2 and R6 are each independently hydrogen or halogen;
• R3 is hydrogen, halogen, haloalkyl, haloalkoxy, —S(O)pCF3 or SF5;
• A is CR7 or N;
• D is CR8 or N;
• G is CR9R10, O, S(O)q or NR11;
• R4, R7, R8 and R9 are each the same or different hydrogen, alkyl, haloalkyl, alkenyl, haloalkenyl, alkynyl, cycloalkyl, halogen, alkoxy, haloalkoxy, CO2H, CO2R12, CHO, COR12, CN, OH, OCOR13, OSiR12R14R15, OP(═O)(OR12)(OR14);
• alkyl substituted by OH, alkoxy or CO2R12;
• NR16R17, NHCOR12, NHCO2R13, SiR12R14R15, S(O)mR12, S(O)uR13, R13 or R18;
• or any two adjacent groups R4, R5, R7, R8, R9 and R10 may together with the atoms to which they are attached form a monocyclic, or fused bicyclic ring system, each ring of which is a 4 to 7 membered saturated, partially or fully unsaturated carbocycle or heterocycle, said heterocycle containing from 1 to 3 heteroatoms which may be the same or different selected from O, N and S, which rings may also contain a bridging group X, and each ring being optionally substituted by alkyl, halogen or alkoxy which may be the same or different;
• or when G is CR9R10, R4 and R9 may together form a bridging group X;
• X is O, S(O)r or —(CH2)tNR19, —(CR20R21)s—, —C(═O)O— or —C(═O)NR22—;
• R5 and R10 are each the same or different hydrogen, alkyl, halogen, alkoxy or CO2R;
• R11, R20 and R21 are each the same or different hydrogen or alkyl;
• R12, R14 and R15 are each the same or different alkyl or haloalkyl;
• R13 is phenyl optionally substituted by halogen, alkyl, haloalkyl, alkoxy, CN, NO2 or NR16R17;
• R16 and R17 are each the same or different hydrogen, alkyl or haloalkyl;
• R18 is a three to seven membered heterocyclic ring containing one or more O, N or S atoms, which may be staurated, partially or fully unsaturated, which is optionally substituted by halogen, alkyl, haloalkyl, alkoxy, CN, NO2 or NR16R17;
• R19 and R22 are each the same or different hydrogen, alkyl, COR12 or CO2R12;
• m, n, p, q, r and u are each independently have the values zero, one or two;
• s is one, two or three;
• and
• t is zero or one;
• or an agriculturally acceptable salt thereof.