There are many techniques that growers can use to reduce their expense for weed control. Weeds can impact vineyards in more ways than just being an unsightly eyesore. They compete with the grapevine for water, nutrition, and sunlight, and play host to insects and nematodes. But does weed control pay, considering the high cost of farm inputs? Dr. Robert Parker believes it does. Parker, extension weed specialist for Washington State University, said weed control is most important in new vineyards and orchards. However, when production inputs rise faster than grower returns, doing without weed control is often considered by growers […]