Caterpillars are eating my silver princess eucalyptus tree. Help. Diane
It could be larvae of a sawfly that is eating the foliage on your eucalypt. This pest is very active at this time of the year. There is a product registered to control sawfly larvae called Yates Baythroid, Lawn Grub and Insecticide. Baythroid is a synthetic pyrethroid which is a fast acting contact insecticide with long last residual activity at low doses. Spray the upper and lower leaves of the plant and if necessary repeat the spray if caterpillars reappear.
Answered: 21 Sep, 2013