have a problem with katydids eating my roses. Can you please help?
are difficult to catch because they are green and they blend in
well. They fly at night and their plant of choice is citrus and
roses buds, flowers and leaves. Often they don't cause significant
damage. Katydids are common from March to June.
It is now pruning time
for most roses, so by removing the foliage you are removing their
food source. They shelter in long grass, so remove any nearby long
grass where they can hide. If a chemical control is required, use
a systemic insecticide spray such as Orthene.
by Dr Dan Blanchon from Unitec's Diploma in Sustainable Horticulture and Bachelor
of Resource Management.
with permission from NZOOM Home and Garden content,
from the previous
The views expressed here are not necessarily those of the RNZIH