We want to provide some information about an insect pest that is expected to defoliate trees in Bay Ward this year.
Gypsy moth is an invasive forest insect that reaches periodic outbreak levels in Ontario. Throughout 2020 the caterpillar stage of this insect was observed to cause widespread defoliation of trees in many parts of southern and eastern Ontario. Through survey work completed by City of Ottawa Forestry Services, they anticipate this insect will cause noticeable defoliation of trees in some parts of Bay Ward later this spring. This will include but is not limited to, areas surrounding Frank Ryan Park.
- City Forestry staff are aware and monitoring the situation with gypsy moth. City staff are in contact with experts and stakeholders across the province.
- Defoliation does not typically harm the tree or cause mortality. In many cases trees can produce additional leaves later in a growing season to compensate.
- There are individual control options for residents to consider in order to reduce the impact of gypsy moth on their property – primarily physical removal of caterpillars and egg masses.
- Questions about insects on City trees or specific questions about insect control can be directed to 311 (613-580-2400 or 311@Ottawa.ca).
For more information about the gypsy moth visit Gypsy Moths | City of Ottawa.