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Photos courtesy Overton Environmental Enterprises Inc.
By Dale Overton, B.Sc.
O ver the past decade, turfgrass
managers have been introduced to
a new line of biologically based
products. One of these products is
compost tea, which is broadly defined as ‘a
liquid extract of compost.’ Compost tea has
been heavily criticized and labelled by
many industry professionals as ‘snake oil.’
As is the case with many emerging
technologies, minimal scientific data, a lot
of hype, lack of quality control, and user
knowledge has led to this reputation.
This article will provide insight and
credibility to engineered compost teas and
the rationale for incorporating them and their
efficacy in a turfgrass management program.
Not all are the same
Not all compost is created equal and the
same can be said for compost tea. Engineered
compost teas (ECTs) are made from high-
quality diversified ingredients, which are
subject to various quality control/assurance
procedures. The point of incorporating
an ECT into a management program is
to reintroduce and inoculate leaves and
rootzones with a multitude of plant
26 March 2014
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