Major plant pest causing considerable plant damage to a wide variety of plants - sometimes on roses particularly on the younger foliage. Large, irregular holes can be seen on leaves often with feeding damage occuring on the leaf edges. Black frass (droppings) also usually visible. Caterpillars feed during the day. Caterpillars are the larval grubs of butterflies and moths and have legs along the length of their body.
Cultural measures: Remove and destroy clusters of eggs when seen. Pick off caterpillars by hand where ever possible.
Product Solution: Multirose Concentrate 2 Sprayday Greenfly Killer when caterpillars are present and repeat 10-14 days later. Provado Ultimate Bug Killer range of insecticides may give some control to smaller caterpillars.