Cover Crops Vineyard Manager Mark Houser cultivates our vineyards with an eye to the past while looking towards the future. Sustainable farming practices allow us to rely more on nature and less on man-made chemicals. Planting cover crops between the rows enhances and protects the vineyards. The cover crops prevent soil erosion, enhance soil fertility, improve drainage and attract beneficial insects. “I want to build up a population of good bugs, which will eliminate harmful bugs, in a ratio of approximately four to five good bugs for every bad bug,” Mark says.