To catch a gooseberry sawfly caterpillar

I found a novel way of exposing the dreaded sawfly caterpillar. First you need black soil or some kind of black covering around the base of the plant, then somewhere near the base of the plant grip firmly  and give it a good shake, the little blighter fall out of the bush and are visible against the black background.

After a squishing time, repeat 3 or 4 times until no more fall out, repeat  daily if you can and look forward to goosegog pie in the autumn. 

Ignore this please, its just a test to see where is goes.

Ignore this please, its just a test to see where is goes.

Into the thread?