Canadian Forest Service Publications

Interaction of adjuvants with Chondrostereum purpureum - a mycoherbicide agent for control of forest weeds. 1995. Prasad, R.P. Pages 454-457 in R.E. Gaskin, Editor. Fourth International Symposium on Adjuvants for Agrochemicals, October 3-6, 1995, Melbourne, Australia. New Zealand Forest Research Institute, Rotorua, New Zealand, NZ FRI Bulletin 193.

Year: 1995

Issued by: Pacific Forestry Centre

Catalog ID: 4219

Language: English

Availability: Order paper copy (free)

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A new bio herbicide agent, Chondrostereum purpureum Fr. Pouzar, has been found to be effective for control of hardwood vegetation in forests. However, its interaction with some new adjuvants (alginic acids and alginates) that are being tested in agriculture was not known. Employing two concentrations (0.1 and 1.0% v/v) of several alginic acids, sea weed extracts (polymer of mannosyluronic and gulosyluronic acids) and two conventional adjuvants, Bond and Kinetic, a laboratory study was conducted to assess their impacts on the infective mycelia. Results demonstrated that these naturally occurring adjuvants were not as mycotoxic as some other synthetic spray additives and hence they might be more suitable in formulating and tank-mixing with bio herbicides than with herbicides. Additionally, alginates, alginic acids and seaweed extracts show promise for conferring protection against UV-light and desiccation of the mycelia.