Tom Doyle's Organic Pre-emergence Weed Control with Nitrogen 10-0-0

Tom Doyle Pre-emergence Weed Control 10-0-0 Being totally natural and excellent as a pre-emergent weed control for your blackberries and other plants when applied as directed, it provide weeks of control for weeds germinating from seed. As with any pre-emergent, it must be applied before weeds and other seeds begin to germinate. It is also a good source of natural slow feeding nitrogen for your blackberries and other plants. This product from the corn processing indusry privides both a natural pre-emergence weed control for many annual grasses and weeds and a slow release source of nitrogen. Apply 2-3 pound per 100 square feet. It will control the emergence of crabgrass, clover, dandelions, lamb's quarter, foxtail, pigweed barnyard grass and others from seed. However, established weeds will not be killed. For blackberries it a high nitrogen fertilizer, at planting apply 4 ounces mixed into the soil and every September apply 4 ounces and work into the soil.