FAQs
Q&A for Gypsy Moth Aerial Spraying - Why are we doing this?
The City of Burlington has identified four wooded areas within the city (Cityview Park, LaSalle Park, Kilbride Park, Zimmerman Park) that have high amounts of gypsy moth egg clusters and are at significant risk of permanent damage if action is not taken.
When gypsy moth larvae (caterpillars) hatch from their eggs in early spring, they eat the leaves of the tree, which causes defoliation. Trees are forced to “push” a second set of leaves which depletes nutrient stores within the tree. Repeated defoliation for several years causes significant stress to trees and in some cases, can kill part or all of the tree. This is particularly important to urban trees that are growing in tougher conditions (less water, compacted soils, hotter). The four locations in Burlington have egg clusters that are well above the normal level and are at risk of significant defoliation.
Q&A for Gypsy Moth Aerial Spraying - When will the spraying happen?
The spraying is expected to happen the third week of May. The exact date will not be known until at least 48-hours before the spraying to ensure the weather conditions are right. When the date is set, announcements will be made on Twitter, Facebook and the website Burlington.ca/gypsymoth.
Q&A for Gypsy Moth Aerial Spraying - How long will the spraying take?
Each wooded area is expected to only take 5-10 minutes.
Q&A for Gypsy Moth Aerial Spraying - Is the pesticide harmful to people or animals?
No. The naturally-occurring, biological pesticide, BtK, being used is not harmful to humans or animals, including pets and degrades in the natural environment within 1-4 days.
Q&A for Gypsy Moth Aerial Spraying - Should I leave my house?
It is not necessary. If you are concerned, you can take precautions similar to avoiding pollen allergies by staying indoors and keeping windows and doors shut.
Q&A for Gypsy Moth Aerial - Should I avoid the park?
It is your choice. The naturally-occurring, biological pesticide, BtK, being used is not harmful to humans or animals, including pets and degrades in the natural environment within 1-4 days.
Q&A for Gypsy Moth Aerial Spraying - Can you use a spray-truck instead?
Some of the areas are not accessible by truck. Using a helicopter is faster, more efficient and allows full access to the affected areas.
Q&A for Gypsy Moth Aerial Spraying - Why does it have to be done so early in the morning?
Due to transport Canada guidelines, it is necessary to operate in the early morning.
Q&A for Gypsy Moth Aerial Spraying - Will this harm the Monarch Butterfly?
No. The biological pesticide only works on caterpillars of a certain age. At the time of spraying, the Monarch caterpillars will be too old to be affected by the bacteria.