leatherjacket

Leather jackets have been a great problem this spring. They have attacked young
cabbage plants  and young courgettes. They nip the stem at soil level - killing the plant.

There are few chemicals available for use on vegetables which kill
leatherjackets. The active ingredient for the job is chlorpyrifos, &
Dursban is about the only product on sale. It is water soluble and
should be well watered in to make sure it reaches the leather jackets in
the soil.

Click this link to download a leaflet on leather-jackets  and how to control them.