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

Instructions for downloading this dataset:

  • select the link below and scroll down the metadata record page until you find Transfer Options in the Distribution Information section,
  • select the link beside the Data for download label,
  • you must provide your name, organization and email address in order to access the dataset

This product requires the use of GIS software.

Land Information Ontario: NRVIS/OLIW Data Management Model (PDF)

*[GIS]: geographic information system

For more information


Data Available

The data described here is available for you to use. [Learn more]
[See the licence for how you're allowed to use this data.]

1998-01-01 - 2008-12-15

Supporting Files

Additional Info

Field Value
Geographic coverage Ontario
Geography Breakdown
Source URL/Address
Author Email
Maintainer branch
Last Validated Date 2013-07-02
Update frequency Other
Access instructions