Halifax Fertilizer 20-0-5 W/1% OXIDIAZON 20-0-5 25% XCU Fertilizer with 1% Oxadiazon - This fertilizer provides a balanced nutrient mix to enhance plant and turf growth, while the added Oxadiazon offers effective pre-emergent weed control. Achieve a lush, weed-free lawn with this solution. The fertilizer contains 25% XCU. XCU slow-release fertilizer provides gradual, steady nutritional uptake for up to 10 weeks of plant response.