Improved varieties of Kentucky bluegrass are a great alternative to perennial ryegrass due to the higher natural resistance to Red Thread. This disease can be controlled with many of the commonly used fungicides. Your Spring Valley sales professional has the solutions you need to grow quality turfgrass. News to Use News and ideas to aid you. With all the rain we've been getting the past couple of weeks, I thought it would be worth reminding you of the potential for accelerated herbicide degradation.
Herbicides degrade in the soil for a number of reasons.
All the DNA herbicides will degrade quickly in soils covered by water. This degradation will start immediately when soils are covered with water. When soils are covered or anaerobic for 24 to 30 hours, the herbicide is totally degraded. As a turf manager who has used any of the DNA herbicides, please consider retreating any areas that have been covered with water for more than 6 - 12 hours, in order to maintain crabgrass protection. To produce high quality turf you need high quality fertilizers that can be evenly applied.