Effect of 2,4-D on Digestibility and Production of Subalpine Herbage

Abstract

Treatment of forb-dominated subalpine cattle range in the Bighorn Mountains of Wyoming with 2,4-D did not change the in vitro dry matter digestibility coefficients of the grasses or surviving forbs. Forbs and grasses were equally digestible throughout the growing season. Production of total and digestible dry matter was not influenced by 2,4-D, but the proportion of both supplied by grasses was increased.