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Now is the time to have one of our arborists assess your trees
for potential hazards.
Those unsightly holes in your tree leaves that you've noticed and
wondered about throughout the growing season most likely are the
result of Bruce Spanworm. Beginning in early April to late
May, the caterpillars feed on the flowers, leaves and buds. Young
worms are carried by the wind and can drift considerable distances
on silken threads. There are two methods for controlling this insect.
One option is spraying in early Spring with a biological control.
The second option is applying (2) sticky bands at roughly 30 and
60 cm above ground around the tree trunk in September to late
October in order to trap the female moths as they crawl
upward to deposit eggs on the trunk and larger tree branches.
Minimize usage of those nasty pesticides and take advantage of
Dormant Spraying. Dormant spraying refers to spraying during
the season of the year when deciduous trees and shrubs are leafless,
and buds are in the overwintering, dormant condition. Materials
applied as dormant sprays include horticulturals oils (dormant oil)
and lime sulphur. Horticultural oils mix with water to form a milky
emulsion. After the water evaporates, a thin layer of oil is left
on the tree. Any overwintering stages of insects such as eggs or
pupae, when sprayed with dormant oil, will suffocate. Some examples
of these insects are scales, mites, aphids and eggs of moths, such
as leafrollers. When lime sulphur is included in the dormant spray,
some overwintering stages of plant disease will be reduced as well.AND
View our recommendations for:
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