Oak Processionary Moth Treatment

At ATS, we use an environmentally friendly pesticide and specialist machinery to undertake the job of Oak Processionary Moth Treatment effectively, correctly and with minimal risk environmentally and ecologically. This coupled with our trained, competent and experienced operatives therefore ensures a professional and efficient treatment.

The pesticide we use is a living bacterium, Bacillus thuringienis (DiPel DF) which, when applied is ingested by the caterpillars. The bacteria breaks down the alkalinity of their stomach which leads to paralysation of their digestive organs and the caterpillar starves. Dipel DF is one of two pesticides endorsed by the Forestry Commission as a control method, the other one being Dimlin Flo.

At ATS we exclusively use Dipel DF as it targets caterpillars solely and breaks down easily within the food chain. It can be used over bodies of water and doesn’t affect aquatic organisms making it environmentally and ecologically friendly. We do pesticide applications when it is most efficient (between the 1st and 3rd instar (growth)) stages which is generally mid-April to the end of May. To apply the pesticide, we have two methods depending on the site and the degree of infestation. For large sites with multiple trees and vehicle access, we use our specialist 4X4 mounted Ultra Low Volume spray units which have a spray range of up to 30m. Imported from Italy and used during OPM treatment works since 2013, we have found these machines both invaluable and incredibly efficient. The Ultra Low Volume feature enables a dramatic reduction of water and pesticide usage and in addition to this, the spray unit is electrostatic. This means the treatment is positively statically charged and attracted to the tree leaves thus reducing drip and drift of the chemical once applied, further reducing the quantity of water and pesticide used. For single spot treatments and inaccessible areas, we use a backpack mister worked by an experienced operative. All our spraying operators are fully qualified to use the equipment. ATS adhere to the use of the correct Personal Protective Equipment and we provide a friendly, professional and efficient service unique to the situation.