Kentucky bluegrass - one of the three "cool-season" turfgrasses commonly grown in colder parts of the United States. It spreads by rhizomes and results in a "carpet" looking lawn.

Kentucky bluegrass is commonly combined with perennial ryegrass and fescue in cool-season grass seed mixtures for the home landscape in temperate regions.

key - a guide that leads you through a number of characteristics of a plant ultimately narrowing down the choices until the unknown plant's identity is revealed.
Koch’s postulates - a technique for determining if a specific organism is causing a disease. It consists of isolating the suspected pathogen in a pure culture, re-inoculating the plant with the pathogen, observing the same symptoms as on the original infected plant and then re-isolating the pathogen from the second plant.


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