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A range of chemicals and pesticides are used on children?EUR??,,????'?????<???EUR?s playgrounds for general weed control and cleanliness. This column outlines some uses and products.
The past several years have seen a dramatic rise in concern over the use of pesticides in parks and schools in the U.S., the U.K. and elsewhere. A number of legislative bills that would restrict their use around children are pending in several states in the U.S. At the federal level, the School Environment Protection Act is currently before the House of Representatives.
Weed control is required in play areas to reduce trip hazards and certain types of long-term maintenance costs. Glyphosate-based herbicides like Roundup are usually employed which have fewer health concerns associated with them.
Suitable herbicide (weed control) products include those based on the active ingredient glyphosate which is non-toxic, short-lived and bio-degradable. Suggested brands include Roundup-Pro Biactive and Roundup-Pro.
Suitable herbicides include glyphosate. Suggested brands include Roundup-Pro Biactive and Roundup-Pro.
Algae on timber, metal and a variety of surfaces, can be a problem. In Europe, the EU no longer recommends the use of chemicals to treat this. Power washing is recommended (but test a small area for surface stability first).
A cleansing treatment for sand pits is recommended. A suitable disinfectant would be 250ml of domestic bleach mixed with 20 liters of water and apply to a depth of 25mm of the sand pit surface. This should be applied by watering can with a fine rose. The sand pit must then be irrigated to a depth of 100mm with clean water using a sprinkler attachment after bleaching.
If excessive animal fouling occurs on bark and other timber loose-fill areas the affected area must be removed, disposed of and replaced.
Where animal or human fouling occurs in enclosed play equipment a suitable disinfectant for treatment after feces have been removed is normal household disinfectant diluted at the manufacturers recommended rate.
Where animal or human fouling occurs on solid surfaces a suitable disinfectant for treatment after feces have been removed is normal household disinfectant diluted at the manufacturers recommended rate.
It is suggested where insects and pest problems occur a specialist pest control company is consulted – these can be located through the Yellow Pages, etc. The exception is superintendents and others trained and properly certified in pest control application.
A set of cautious guidelines should be followed for all pesticide and herbicide applications. These include the following:
Francisco Uviña, University of New Mexico
Hardscape Oasis in Litchfield Park
Ash Nochian, Ph.D. Landscape Architect
November 12th, 2025
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