Answer: A tsunami is a giant wave (or series of waves) created by an undersea earthquake, volcanic eruption or landslide. Tsunamis are often called tidal waves, but this is not an accurate description because tides have little effect on giant tsunami waves.nswer: A tsunami is a giant wave (or series of waves) created by an undersea earthquake, volcanic eruption or landslide. Tsunamis are often called tidal waves, but this is not an accurate description because tides have little effect on giant tsunami waves.
Roundup is not persistent in the soil. You can lay your sod one week after spraying the weeds. The herbicide will get into the growth of any plant it touches, not anything the chemical does not touch. I don't know of a pre-m herbicide that controls germination of any weeds likely to grow this time of year. Pre-m only prevents weed seeds from germinating.
When Roundup is applied in fall, wait until the following spring to seed warm-season grasses. When planting cool-season grass after summer use of Roundup, wait until the weather cools in October before planting.ccording to its manufacturer, Roundup does not leech into soil from plant roots and chemical washed into the soil does not persist for more than 24 to 48 hours. Because glyphosate is a non-selective herbicide, users must take care to avoid overspraying target plants.