Gardening

What did you do with the clothing you wore while applying pesticides?

by Dr. William M. Johnson, Galveston County Extension Agent - Horticulture

March 22, 2006

When applying "weed & feed" fertilizers to lawns, take care to avoid placement on non-target areas such as driveways, sidewalks, etc. Photo Credit: William M. Johnson

Last week's column concerned proper use and care of clothing worn while applying pesticides. The focus of this week's column is the safe and effective use of pesticides.

Now that yard and garden plantings are growing again, problems may start appearing. There are a variety of ways to manage insects, weeds, diseases, and other problems, both chemically and non-chemically. Throughout the 2006 growing season, keep reminding yourself to consider all available options for managing pests and if pesticides are needed, use extreme caution when using them.

DID YOU KNOW? Quick Facts & Hints about Pesticide Usage - While deaths from occupational exposure to pesticides are unusual, children under 10 years old represent 50% of the accidental deaths by pesticides! Moreover, nearly all pesticide deaths are caused by eating or drinking the product! - About 90% of the long-term exposure that a pesticide user receives is dermal or through the skin! Thoughtfulness and use of appropriate clothing will reduce pesticide exposure. - Soft contact lenses should not be worn when working with pesticides. Soft contact lenses may absorb pesticide vapors from the air and hold them against your eyes. - Eating, drinking or use of tobacco must be avoided when working with pesticides because trace amounts of chemicals may be transferred from hand to mouth. - It is dangerous?and illegal?to spray when windy conditions exist as the spray could drift onto you or your neighbors. - The target area to be treated as well as the surrounding area should be examined before applying any pesticide. Are there plants or animals that could be harmed by the pesticide? Don't spray if you cannot guarantee they will not be injured. You are responsible for any damage that could occur. - Pesticides must be safely stored where they are out of reach of children (preferably in a locked storage area). Always store pesticides in their original container along with their label. - Pesticides should be transported in the bed of a pickup or in the trunk of the car instead of the backseat to avoid contaminating the passenger section in case of breakage or spillage. - The date of purchase should be clearly marked on containers that are put into storage with a permanent marker. Use oldest products first.

Pesticides are a large, diverse group of chemicals that include insecticides, herbicides, fungicides, insect repellents, animal repellents, mice control products, etc. All of these are chemicals that will kill or inhibit some type of pest, whether it's an insect, weed, disease, or animal.

To protect yourself, your family and the environment, read the label! It's not only the law, it's for your personal safety also! The danger of any product is evaluated not only by its toxicity, but also by the degree of your exposure to the product. As Paracelsus, the "father" of modern toxicology, put it, "The dose makes the poison."

Pesticide labels are federal documents, and it is illegal to use pesticides in a manner not specified on the product label. You must not only read the pesticide label before mixing, applying, and storing a pesticide, you should read the label before purchasing the pesticide. Labels specify what the pesticide may be used on, how to mix and apply it, and how to store the container.

Always make sure all your intended uses of the material are on the label. Even if you are trying to control the same pest, don't assume pesticides used on trees or lawns can also be used on vegetables and fruit plantings. Follow the rate given on the label for the type of plant the pesticide is being applied to. Never exceed the rate on the pesticide label!

Do you know how many days you must wait after spraying a vegetable before you can harvest the crop? For example, for a specific insecticide, the "days-to-harvest" period can be 1 day for a particular vegetable and 14 days for another type vegetable. Do you know how long to wait before making a follow-up application? Do you know if the material is toxic to bees or fish? Check the label for this important information to avoid potential problems.

It is also very important to avoid application or movement of a pesticide onto non-target areas. For example, use precautions to keep pesticides away from ponds, streams, bayous and other waterways. When applying "weed & feed" fertilizers and other types of granular pesticides to lawn and landscape areas, take care to avoid placement on non-target areas such as driveways, sidewalks, etc.

Finally, be sure to protect yourself from exposure while mixing or applying pesticides. Wear unlined chemical resistant rubber or neoprene gloves. Cover exposed skin. Wash thoroughly when you're done and store both the pesticides and application equipment properly.

Dr. Johnson is a horticulturist with the Galveston County
Extension Office of Texas Cooperative Extension, Texas A&M University. Visit his web site at http://aggie-horticulture.tamu.edu/galveston/index.htm

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