-Viruses are 10 to 100 times smaller than bacteria-Viruses need a living host; bacteria can grow on non-living surfaces-Antibiotics don't work on viruses, because antibiotics interfere with cellular processes that viruses do not perform.Differences Between Bacteria and Viruses are: î î î.Are small DNA fragments-Each fragment carries between 2 and 30 genes-Some plasmids have the ability to move in and out of the bacterial chromosome-Plasmids are not needed for the cell's growth or reproduction, but can cause disease or can protect the bacterium from things like antibiotics.
Check out this page for a simple soil content test. The soil's pH rating is also important. This rating tells you the relative acidity and alkalinity of the soil (this page explains the concept). The ideal pH level is around 6.5 or 7, but levels vary between different grass species and climate conditions. You can find out your soil's pH level with a home test or a professional test. If you need to substantially increase the acid level, add sulfur.
Anything you don't understand about lawn care, just ask us - we can help! Adjust Soil pH. To get the most from your lawn fertilizer applications, your soil pH needs to have about a 6.5 value. It is best to have the pH analyzed with a soil test each year or anytime you notice a decline in the appearance of your lawn. Liming can be done in spring or fall, but is not recommended during the hot summer months. To raise the pH of your soil, add lime (see chart below).