Canadian Forest Service Publications

Role of some adjuvants in enhancing the efficacy of herbicides on forest species. 1989. Prasad, R.P. Pages 159-165 in C.H. Chow, C.A. Grant, and E. Simundsson, editors. Adjuvants and Agrochemicals Volume 1, Mode of action and physiological activity, Proceedings: International Symposium. August 5-7, 1986, Brandon, Manitoba. CRC Press Inc, Boca Raton, Florida.

Year: 1989

Issued by: Pacific Forestry Centre

Catalog ID: 20608

Language: English

CFS Availability: Not available through the CFS (click for more information).

Mark record


A study employing four adjuvants (Ethokem, Multifilm, Regulaid, and Tween-20); three herbicides (glyphosate, hexazinone, and triclopyr); and three forest weeds (aspen, red alder and white birch) was carried out under greenhouse conditions. The results showed that forest weeds responded to addition of some adjuvants in the herbicide formulations. Of the adjuvants tested, Ethokem (cationic form) gave the best performance. The enhanced efficacy of glyphosate after the addition of adjuvant G3780A was related to greater uptake and translocation of {14C}-glyphosate. The implication of these findings in relation to reduced cost of herbicide application in a forestry scenario is discussed.