Sawfly Caterpillars?

[Refugee]

Well i use organic like this....

I feed the wild birds in the winter and in the spring i reduce the bird feed so that it runs out by mid morning and watch the birds go for the larva. Even house sparrows will hover to get them. I also make the citrus traps small enough that the birds can turn them over and get the slugs. It is a shame my home made vine weevil killer contains an illegal plant extract otherwise we would be able to get all these pests sorted.