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.
If you depend on label recommendations for planting after use, you must follow the directions for use. Some Roundup products contain a pre-emergent herbicide, diquat, in addition to glyphosate and will retard growth of any seed for up to four months, making immediate re-seeding impossible.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.