dethatch

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de·thatch

 (dē-thăch′)
v. de·thatched, de·thatch·ing, de·thatch·es
v.tr.
To remove (dead grass) from a lawn, usually to aerate the soil.
v.intr.
To remove dead grass from a lawn.

de·thatch′er n.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

dethatch

(diːˈθætʃ)
vb (tr)
to remove dead grass from (a lawn)
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
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References in periodicals archive ?
To aid the treatment, scarify your lawn - with a scarifier or dethatcher which you can buy from all good garden centres - to remove the growth, then spike the area with a garden fork, creating deep holes.
The Tine Rake Dethatcher uses patented tines to lift thatch without damaging turfgrass and at the same time comb grass giving the lawn a clean, raked appearance.
If you need a serviceable and handy riding mower (for up to about 2 1/2 acres) that can pull a garden cart, leaf sweeper, grass clipping bagger, fertilizer spreader or a dethatcher, or occasionally push a little snow with a front-mounted blade, then a lawn tractor is right for you.
(At Action Rental, a dethatcher rents for $9/hour for a two-hour minimum, or $57 a day.) A dethatcher thins out thatch build-up.
lawn condition, Nature's Magic plant and soil activator, Biological Dethatcher and added Mycorrhizae.
It is also called an aeroblade, thatcher, verticutter, or dethatcher. The machine has a series of knives mounted on a horizontal shaft (Figure 18-20).
Encore also produces the Premier line of walk-behind mowers and the Power-Thatch dethatcher.
The Mantis Electric Tiller can be used with optional attachments such as a border edger, furrower, crevice cleaner, lawn aerator, lawn dethatcher and plow.
Alternatively, you might rent an expensive gas-guzzling power dethatcher that will scratch the soil, while bringing all that dead grass to the surface for easier collection with a leaf rake or power vacuum of some kind.
If you need a handy riding mower (for up to about 2 1/2 acres) that can also pull a garden cart, leaf sweeper, grass dipping bagger, fertilizer spreader and dethatcher, or occasionally push a little snow with a front-mounted blade, then a lawn tractor is right for you.