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Smart Use of Fall Pesticides
Posted By Editor On September 3, 2010 @ 5:23 pm In Variety | Comments Disabled
As fall approaches, homeowners and green industry professionals take steps to prepare landscapes for the winter. Leaves are swept away for composting or disposal, perennials and shrubs are pruned, hedges are trimmed, and pesticides are applied in anticipation of next year’s growing season.
For professional arborists and landscapers, fall and early winter are an effective time to use pesticides, a broad term that includes products that kill insect pests andall also kill weeds (herbicides).
“Many people don’t have to use pesticides at all, ” says Tchukki Andersen, staff arborist for the Tree Care Industry Association. “Professionals may be able to solve landscape problems without pesticides by choosing non-chemical alternatives, such as sanitation procedures and selecting shrubs and ornamental trees that are less susceptible to diseases and insects.
“For example, an infestation last year may only require all the old plant material be cut out, ” notes Andersen. “Often, cultural practices (pruning, raking leaves, etc.) will go a long way toward solving pest problems. ”
For homeowners who decide to use pesticides, the Tree Care Industry Association offers these suggestions:
The best choice may be to consult a professional who can diagnose pest problems and recommend chemical or non-chemical alternatives. A beautiful lawn, shrub or tree isn’t worth the trade-off if pesticides are not being used properly.
Fall is a good time to inspect walkways, driveways and patios for those annoying trapped seeds. Despite drought and frequent sweeping, some seeds from weeds, grasses and trees will have germinated, lining joints with unsightly green. Other seeds simply lie in wait until the spring. This new growth must be stopped before the growing season arrives and those small cracks become gaping holes filled with vegetation. Herbicides are the most cost-effective way of eliminating unwanted weeds, but homeowners need to be careful when using herbicides! When they are used improperly, they can just as easily kill your valuable mature trees and shrubs as sprouting weeds. Users should read the product label to ensure proper application methods. “Herbicides should not be applied on or near desirable trees, ” cautions Andersen, “or on areas where their roots may extend or in locations where the herbicide may be washed or move into contact with their roots. Even properly applied chemical applications may be affected by rainfall. Some herbicides can be washed off paved surfaces or soak into the ground through the cracked joints – the very place with the greatest concentration of fine tree roots. ”
If you are thinking about using herbicides, hire professional arborists. They will choose the correct type of herbicide for the job.
Find a professional
A professional arborist can assess your landscape and work with you to determine the best way to preserve and protect your valuable landscape. Contact the Tree Care Industry Association (TCIA), a public and professional resource on trees and arboriculture since 1938. It has more than 2,000 member companies who recognize stringent safety and performance standards and who are required to carry liability insurance. TCIA has the nation’s only Accreditation program that helps consumers find tree care companies that have been inspected and accredited based on: adherence to industry standards for quality and safety; maintenance of trained, professional staff; and dedication to ethics and quality in business practices. An easy way to find a tree care service provider in your area is to use the “Locate Your Local TCIA Member Companies” program. You can use this service by calling 1-800-733-2622 or by doing a ZIP Code search on www.treecaretips.org.
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