Insecticidal

1. A method of controlling insects which comprises applying to a locus where control is desired an insect-inactivating amount of a compound of formula (I)

wherein

X represents NO 2 or CN;

L represents a single bond;

R 1 represents (C 1 -C 4 ) alkyl;

R 2 and R 3 independently represent hydrogen, (C 1 -C 4 ) alkyl, fluoro, chloro or bromo;

n is an integer from 0-3; and

Y represents (C 1 -C 4 ) haloalkyl.

2. A method according to claim 1 wherein said Y represents —CF 3 .

3. A method according to claim 1 wherein R 2 and R 3 independently represent hydrogen, methyl or ethyl.

4. A method according to claim 1 wherein said compound has the formula

wherein

R 2 and R 3 independently represent hydrogen, methyl, ethyl, fluoro, chloro or bromo; and

n is an integer from 1-3.

5. A method according to claim 1 wherein Y represents CF 3 , R 1 represents methyl or ethyl, R 2 and R 3 independently represent hydrogen, methyl or ethyl, and n is an integer from 1-3.

6. A method according to any one of claims 1 - 5 wherein at least one or more other insecticides, one or more herbicides, or one or more fungicides are applied.

7. A method comprising applying a compound of formula (I)

wherein

X represents NO 2 or CN;

L represents a single bond;

R 1 represents (C 1 -C 4 ) alkyl;

R 2 and R 3 independently represent hydrogen, (C 1 -C 4 ) alkyl, fluoro, chloro or bromo;

n is an integer from 0-3; and

Y represents (C 1 -C 4 ) haloalkyl to a seed.

8. A method of controlling invertebrate or nematode pests that are parasitic or capable of transmitting infectious diseases which comprises applying to a locus where control is desired an invertebrate or nematode-inactivating amount of a compound of formula (I)

wherein

X represents NO 2 or CN;

L represents a single bond;

R 1 represents (C 1 -C 4 ) alkyl;

R 2 and R 3 independently represent hydrogen, (C 1 -C 4 ) alkyl, fluoro, chloro or bromo;

n is an integer from 0-3; and

Y represents (C 1 -C 4 ) haloalkyl.