Register with us or sign in
in Problem solving
Apparently, pouring boiling water over a bucket of foxglove leaves and leaving for a couple of days then spraying the result on the bushes may help. There is also Nemasys caterpillar & sawfly killer but that is expensive and needs to be used when you first spot the sawfly caterpillars. Both are organic methods. Otherwise you could check every day and pick the caterpillars off by hand, but that can be extremely painful! Effective chemical sprays include pyrethrum (organic - derived from chrysanthemums) and Provado ultimate bug killer.