Forest Insect Damage Event

Shows areas where forest insect pests have damaged or killed trees by defoliation, foliage mining and wood boring. Tree mortality rarely occurs as the result of one year's infestation, but from the result of several consecutive years of infestation and other contributing factors affecting weakened trees (e.g., fungal invasion). The Government of Ontario tracks forest damage events to help proactively manage the detrimental effects to our forests. We monitor the threat and spread of invasive forest pest insect species in Ontario. The data is also important to the Forest Management Planning process in calculating timber volume loss within affected areas This product requires the use of geographic information system (GIS) software.

Data and Resources

Additional Info

Field	Value
Last Updated	April 17, 2026, 18:57 (UTC)
Created	April 17, 2026, 18:57 (UTC)
contact_person	{"en": "Government of Ontario; Government of Ontario; Natural Resources and Forestry", "fr": "Gouvernement de l'Ontario; Gouvernement de l'Ontario; Natural Resources and Forestry"}
criticality_level	[]
data_dictionary	unknown,unknown,unknown
geographic_scope	[]
open_canada_collection	fgp
open_canada_date_published	2020-01-11 00:00:00
open_canada_keywords	{"en": ["Economy and Business", "Environment and Natural Resources", "Environment and energy", "Government information"], "fr-t-en": ["Économie et affaires", "Environnement et richesses naturelles", "Environnement et énergie", "Information gouvernementale"]}
open_canada_subject	["economics_and_industry"]
sensitivity_level	unrestricted
title_fr	Dommages causés par des insectes forestiers
update_frequency	unknown