Find Your Location Using Resection. Resection is the method of locating one's position on a map by determining the grid azimuth to at least two well-defined locations that can be pinpointed on the map. For greater accuracy, the desired method of resection would be to use three or more well-defined locations. When using the map and compass method--.
MYTH: All thatch is bad. FACT: most lawns have a layer of thatch, even healthy lawns. However, when that layer builds up to more than 1/2, it needs to be reduced. MYTH: Thatch is caused by lawn clippings. FACT: Grass clippings are made up mostly of water and nutrients (approximately 90%). Remove only 1/3 of the grass at one time and leave the clippings.
CORVALLIS, Ore. â May is an optimum time to aerate and dethatch your lawn. If your lawn is made up of perennial ryegrass or tall fescue, you likely don't have to worry about thatch, said Alec Kowalewski, a turfgrass expert for the Oregon State University Extension Service.he best way to tell if your lawn needs dethatching is to take a shovel and dig out a little piece of soil and look at whether there is thatch layer accumulation, Kowalewski said. Aerating your lawn is the best way to get rid of thatch, Kowalewski said.