We recognized a need to develop a product that was effective for weed control while being more selective and environmentally safe. Fundamental research conducted by scientists at the Canadian Forest Service identified a native species of fungus that showed great potential as the active ingredient for our bioherbicides. The species, Chondrostereum purpureum, is a naturally occurring fungus found in the Northern Hemisphere. When applied to a cut stump, this fungus will colonize and inhibit the resprouting and regrowth from that cut stump – without a detrimental affect on non-target species, soils, fauna, and waterways.

Chontrol Peat Paste trial application on red oak: The paste flows easily from the 1 litre container. A stump of this large size could be treated just at the cambium layer.
With financial support from provincial and federal granting agencies, the Canadian Forest Service and BC Hydro, applied research and commercial development were subsequently conducted at the University of Victoria.
Chontrol Peat Paste: After ten years of hard work and $1.4 million in research funding, our first biological herbicide Chontrol Peat Paste received full registration as a pesticide product both in Canada (Pest Management Regulatory Agency) and in the United States (Environmental Protection Agency).
At present, additional the efficacy trials of Chontrol Peat Paste are in progress, testing the bioherbicide on the major weed trees in North America. Should your company wish to participate in a trial please contact us .
