Weed control in an established chardonnav vineyard

摘要

A field study was established to evaluate postemergence herbicide applications for weed control in an established vineyard located near Lodi, California. Plots were 4.5 by 24 ft arranged in a randomized complete block design with four replications. All herbicide treatments were applied with a C02 pressurized backpack sprayer calibrated to deliver 40 gpa (Table 1). Grape injury and weed control was visually evaluated 14, 38, 58, 122 and 144 days after treatment (Table 2 and 3).