Lymantria dispar dispar or “LDD moth” (formerly known as gypsy moth) is a forest defoliating insect found in Ontario. Outbreaks occur every 7 to 10 years.
The province of Ontario posts information here and makes available a protocol document (PDF, 5 pages) with steps to conduct an egg mass survey to estimate the population of the moths on your own property.
News & Related Events:
August 31, 2021 – Hastings County asking for help to track LDD infestations (Hastings County)
July 2021 – see additional resources posted by the Environment Council for Clear, Ston(e)y and White Lakes
June 23, 2021 – as reported by the Ontario Woodlot on Twitter: “A member reports that the virus and fungus are taking hold. The photo shows the classic fungus (left) and virus (right) effects.” [see image at the side]
June 2021 – We are pleased to provide access to a recording of an informative June 10, 2021 gypsy moth webinar hosted by the Eastern Ontario Model Forest (EOMF) and Ontario Woodlot Association (OWA) websites . On their webpages you will find a link and passcode to the webinar.
May 22, 2021 – Gypsy moth caterpillars ‘virtually everywhere’ in SW Ontario, expert says (CBC.ca)
May 3, 2021 – Town of Oakville to conduct aerial spraying to combat gypsy moths (Toronto Star)
April 2021 – Gypsy Moth Information from the Regional Forest Health Network (Southern Ontario)
Information about Gypsy Moths:
- QandA Gypsy Moth FINAL August2020
- MNRF Gypsy Moth notes, July 2020
- Gypsy moth surveys for woodlot owners
- Organizing Aerial Spraying Programs (Ontario 2015)
July 22, 2020 – How Ontario is battling a very hungry caterpillar (TVO) – Gypsy-moth caterpillars are killing trees throughout the province.
July 15, 2020 – Eastern Ontario in grip of worst Gypsy moth outbreak in 30 years (Belleville Intelligencer)
July 9, 2020 – Forests in Peterborough and the Kawarthas are under attack (Peterborough Examiner)