Japanese Stiltgrass Germination Temperature
Japanese stiltgrass is an early germinating warm season annual that is problematic in the mid atlantic region and spreading to the north and west.
Japanese stiltgrass germination temperature. Application timing is a challenge as germination is based on soil temperature which varies from year to year. As of 4 p m. We suggest putting it down as soon as possible. Light conditions may be just as fit as seeds originating from high light conditions.
The highest average annual temperature was ap of. Shade tolerant and invasive in the united states m. Vimineum s earliest recorded appearance in the united. A general guideline is to apply these preemergence herbicides by mid march or late february in an early spring.
This means the temperature in the upper inch is higher. We generally recommend applying a preemergent for japanese stilt grass such as pendimethalin in february in central maryland but it can be applied now. The goal of this research was to evaluate japanese stiltgrass cl and ch seed mass viability and germination. Japanese stiltgrass microstegium vimineum is an invasive annual grass.
The seeds can germinate most of the summer so if you cannot get it down today it will help if the preemergent is applied later. On monday february 27 the 3 day average soil temperature at the turfgrass field laboratory in raleigh was 55 8 degrees at 10 cm approximately 4 inches depth. Seed mass viability and germination of japanese stiltgrass n 275. Vimineum is native to china korea japan malaysia and india tu 2000 fryer 2011.