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Agriculture and Turf Group
FAQ
Are these genetically modified organisms?

Absolutely not. These are naturally occurring species.

What are CFUs and should I care about them?

All professional microbial products will clearly state the guaranteed biology count. CFU stands for Colony Forming Units and is a measure of product concentration.
Similarly "propagules/lb" is the commonly used term for Endomycorrhizae
concentration. The higher the number the more biology you get for your money. CFU
is usually expressed per unit of weight or volume. CFU/g, CFU/lb, CFU/mL are
commonly used in microbiology to express the number of viable (read live) bacteria
or fungi. Conversely, other methods including direct microscope count do not
differentiate between live or dead cells. Also, be sure to compare like units. It is easy
to over look CFU/lb versus CFU/g when looking at package labels – note CFU/g is
roughly 454 times more concentrated than CFU/lb.
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