Pesticide Applicators

Resources and Best Practices

All pesticide applicators, regardless of type, should follow a basic set of management practices and be in compliance with the law. On this page, find information for pesticide applicators on resources and best practices, including pesticide law in the state, EPA worker protection standards, storage, security, and safe disposal of pesticides. You’ll also find tips on spill kits, transporting pesticides, and calibrating sprayers.

Pesticide Law and Regulations: EPA and FIFRA

There are many state and federal laws and regulations that pertain to the application of pesticides. One of the main statutes that governs the registration, distribution, sale, and use of pesticides across the whole of the United States is the Federal Insecticide, Fungicide, and Rodenticide Act (FIFRA).

Laws and regulations are also in place to cover any workers such as those employed on farms, forests, nurseries, and enclosed-space productions. The EPA Worker Protection Standard for Agricultural Pesticides requires that employers and workers take steps to reduce the risk of pesticide-related illness and injury. A WPS checklist is available to pesticide applicators.

While you must strictly adhere to pesticide laws and regulations, there are occasions when a state or federal agency can request emergency exemptions. For example, an exception could be made if a severe pest problem is jeopardizing public health or agricultural goods production.

Safe Use of Pesticides

Pesticides are toxic to both pests and humans. There are less harmful pesticides, many people consider glyphosate to be one of them, but most pesticides will cause adverse effects if intentionally or accidentally ingested or if they are in contact with the skin for a long time.

You may inhale pesticide particles with the air while they are being sprayed. There is also an additional risk of contaminating drinking water, soil, or food.

However, if you take suitable precautions, they need not be hazardous to humans and non-target animal species. Responding immediately and appropriately will minimize the effects of pesticide exposure.

The Pesticide Hypersensitivity Registry ensures that individuals hypersensitive to pesticides are notified if a pesticide application business is planning to make an application to a structure or outdoor above-ground pesticide application within 500 feet of any listed location.

You must wear protective clothing when you apply pesticides, and cover your mouth and nose with a simple device. If you have to wear a respirator, a free respirator fit test is available from Penn State Extension. Extensive training resources are also available in accordance with the EPA New Worker Protection Standard Training Materials. Rules and regulations are also in place with regard to safe pesticide storage.

Pesticide Application Best Practices

A pesticide is only effective when delivered safely and precisely. When you use an approved pesticide, the aim is to apply the correct dose to a defined target with the minimum wastage due to drift using the most appropriate spraying equipment. pH and water modifications can also affect pesticide performance.

Poor spraying may not be apparent for some time, so it’s essential that licensed pesticide applicators are fully aware of their responsibilities and obligations and properly trained in pesticide use and application.

Following pesticide labels and Safety Data Sheets (SDSs) is critical and further information is available online from the National Pesticide Information Retrieval System (NPIRS) website. Pesticide labels contain vital information with regard to storage, correct usage, and specific disposal.

You should store pesticides safely in a secure area that is only accessible to those trained in the product’s application. When you store pesticides securely, it helps prevent spills or leaks into the groundwater, and flammable liquids from catching fire.

Safety is also important when you transport pesticides. There is the potential to cause harm to humans and animals, pollute the environment, incur financial losses, and be subject to legal actions if you do not follow best transportation practices.

In the event of a spill, whether it’s during transportation or on-site, being adequately prepared to handle a pesticide spill or accidental release of a hazardous chemical can avert a contamination crisis.

There are lots of challenges a pesticide applicator has to face, but many of them can be made much easier with the help of a smartphone and tablet application.

Pesticide applicators always have to be aware of drift-related damage. When it occurs, it can be very costly, especially if the crops damaged are commercial grapevines. Pesticides can also affect pollinators such as honey bees, but it is possible to reduce the damage caused to pollinator health by following best practices.

Accurate record-keeping plays a vital role in best pesticide application practices. It’s also a requirement if you want to be in compliance with the Pennsylvania Pesticide Control Act of 1973. An essential aspect of applying pesticides you must record is calibration information.

You can calibrate your rotary sprayer yourself. However, you can get Penn State to calibrate your sprayer equipment for you. Before it happens, there are several pre-calibration tasks you have to complete, such as triple rinsing the tank and piping, cleaning nozzles, and flushing out the line to the pressure gauges.

Last task of the year for a pesticide applicator is to winterize the spraying equipment. Once again, best practices such as wearing PPE and cleaning the sprayer regularly will increase the longevity and efficiency of the equipment.

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  1. Basal Bark: Herbicidal Treatment
    Videos
    Basal Bark: Herbicidal Treatment
    By Katie Brooks
    Length 4:28
    This video is designed to give the basics of applying herbicide to the intact outer bark of a woody plant to manage competing and invasive species.
  2. Turf and Ornamentals: Pools
    Webinars

    $20.00

    Turf and Ornamentals: Pools
    When 01/31/2023
    Length 2 hours
    Earn Cat. 24 and PC credits while you learn about pool chemical problems and stabilizing pH levels, and more.
  3. Winterizing Sprayer, Photo by Andrew Frankenfield
    Articles
    Late Fall Is the Time to Winterize Your Sprayers
    By Andrew Frankenfield
    Now that most of the field spraying is over for the season and the weather is turning colder it's time to winterize your pesticide sprayer before it gets too cold and causes damage to sprayer components. The following are tips to guide you.
  4. Proper storage signage.
    Articles
    Core Topic Issue: Pesticide Storage Security
    The following is a list of resources (articles, worksheets, and websites) that have information about pesticide storage and security.
  5. EPA's Soil Fumigant Toolbox
    Articles
    Soil Fumigation Resources from EPA
    This EPA website provides training, outreach, and other resource materials for applicators and others interested in the requirements of using soil fumigants safely.
  6. John C. French Sr., Retired, Universities:Auburn, GA, Clemson and U of MO, Bugwood.org
    Articles
    Suggestions for Reducing Drift and Impact to Sensitive Areas
    By Dwight Lingenfelter, William S. Curran, Ph.D.
    The wind has been beneficial this spring to help dry the soil to allow field work but too much wind when you want to spray can be detrimental.
  7. Pesticide Special Use Exemptions
    Articles
    Pesticide Special Use Exemptions
    A state or federal agency can request emergency exemptions when a serious pest problem jeopardizes production of agricultural goods or public health.
  8. Pesticide and Container Disposal Information
    Articles
    Pesticide and Container Disposal Information
    Learn about programs that benefit applicators by providing a means of disposing unwanted or unused pesticides and recycling pesticide containers.
  9. Spray Adjuvants
    Articles
    Spray Adjuvants
    By Winand Hock, Ph.D.
    An adjuvant is added to a pesticide product or pesticide spray mixture to enhance the pesticide's performance and/or the physical properties of the spray mixture.
  10. Toxicity of Pesticides
    Articles
    Toxicity of Pesticides
    By Winand Hock, Ph.D.
    People who use pesticides or regularly come in contact with them must understand the relative toxicity and potential health effects of the products they use.
  11. Respiratory Protective Devices for Pesticides
    Articles
    Respiratory Protective Devices for Pesticides
    By Winand Hock, Ph.D.
    For many toxic chemicals, the respiratory (breathing) system is the quickest and most direct route of entry into the circulatory system.
  12. Pesticide Storage and Security
    Articles
    Pesticide Storage and Security
    By Sharon I Gripp, John Ayers, Ph.D., Kerry H. Richards, Ph.D.
    This article describes the proper procedures for storing pesticides and application equipment.
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