Gypsy Moth Open Houses

The City of Hamilton, Hamilton Conservation Authority and Royal Botanical Gardens staff have developed a coordinated plan to perform aerial applications of the organic insecticide Bacillus thuringiensis variety kurstaki (also known as Btk or Foray 48B) in an effort to control the damage of escalating Gypsy Moth populations.

Considered the most significant tree defoliator in North America, the European Gypsy Moth (Lymantria dispar L.) is once again the number one forest and backyard pest in Hamilton.

Due to the large density and size of egg masses found this year, forestry and ecology staff expect severe tree defoliation in parts of Ancaster, Flamborough, Glanbrook, Dundas and West Hamilton including the Dundas Valley and Cootes Paradise areas. These areas also experienced defoliation from Gypsy Moth caterpillars in the past and action is being taken this year to alleviate successive stress on the trees.

The City of Hamilton’s Public Works Department, Hamilton Conservation Authority and Royal Botanical Gardens will be holding several Public Open Houses to allow members of the public to receive more information on the Gypsy Moth infestation problem in our area, the proposed control plans and what property owners can do to assist in the control of Gypsy Moth.

Residents are welcome to attend any of the above Open House sessions. Displays, pamphlets and experts will be available to answer residents’ questions.