the andersons professional surge weed and feed 16-0-9 post-emergent weed control and fertilizer - covers up to 16,000 sq ft (40 lb) the andersons the andersons pro turf weed & feed with surge is a professional-grade herbicide featuring four active ingredients. this combination results in quicker control over a broader list of more than 250 weeds, including dandelions, clover, chickweed, plantain, and many more. this product features a 16-0-9 fertilizer analysis, feeding to build a thicker, greener lawn. the andersons pro turf weed & feed with surge contains both quick-release (for immediate green-up) and 25% slow-release nitrogen (for extended feeding). smaller particle sizing provides more granules per square inch, resulting in superior coverage and performance. the andersons pro turf weed & feed with surge provides superior performance throughout the entire growing season, even when applied in the cooler temperatures of spring and fall.