The County of Wetaskiwin issued a pest notice for Forest Tent Caterpillars on June 3, advising residents of their harmful effects.
The release stated the caterpillars had been identified in the county.
"Forest tent caterpillars are a serious pest that effect many species of deciduous trees in North America. When outbreaks occur, they cover extensive areas and can completely defoliate host trees. Eggs hatch and larvae begin feeding on newly emerging leaves in late April to early May."
The county advised pest management strategies vary depending on:
- the population level of the pest,
- the expected damage of the pest's activity and population level,
- how many individual host specimens are affected, and
- the value of the host(s) versus the cost of pest management.
Potential strategies include:
- removing colonies of young larvae by hand or with pressurized water,
- applying a registered insecticide against larvae for larger trees or in forested situations.
Currently registered pesticides can be found at control.canada.ca.
"Apply registered products only as necessary and follow all directions and precautions noted on the manufacturer's label," the release noted.
The County of Wetaskiwin offers a "bug sprayer" for rent that can be used to spray trees.
The self-contained trailer sprayer unit can spray trees up to 40 feet tall. It has its own motor and handgun nozzle to spray trees.
It requires a 2 and 5/16” ball to pull the trailer and can be rented for $20 per day or $40 for the weekend.
Visit the county's website for more information.
For further questions, contact Director of Agricultural Services Steve Majek at 780-6226.
