Pesticides need to be managed in such a way to optimize pest control while minimizing pesticide loss to the environment.

What is a pesticide?

The public is becoming increasingly concerned about the harmful effects of pesticides on the environment. Protecting water and the environment is a key element of the University of Nebraska-Lincoln Extension Pesticide Safety Education Program (PSEP). It is essential that pesticide applicators understand all aspects of the pesticides they use in order to properly manage them. Whether you want to learn more about protecting human health, the environment, becoming certified and licensed, or improving your bottom line UNL Extension PSEP can help!

Integrated Pest Management

Integrated Pest Management, or IPM, is a long-standing, science-based, decision-making process that identifies and reduces risks from pests and pesticides. It coordinates the use of pest biology, environmental information and available technology to prevent unacceptable levels of pest damage by the most economical means, while posing the least possible risk to people, property, resources and the environment. IPM provides an effective strategy for managing pests in all areas from developed residential and public areas to crop and wild lands.

Chemical & Physical Characteristics of Pesticides

Understanding the chemical and physical characteristics of a pesticide allows the applicator to make better decisions about which pesticide active ingredient and/or formulation to use for a particular situation. Two chemical characteristics of interest are water solubility and volatility. The more water soluble a pesticide is, the greater the potential for runoff and leaching. The more volatile a pesticide is, the greater the potential for drift.

Pesticide Leaching & Runoff Management

Runoff and/or leaching can occur when pesticides are carried off the application site into water such as rivers, lakes and streams, wells, storm sewers, or into groundwater. Runoff/leaching can occur when too much pesticide is applied or is spilled on the surface, too much rainwater or irrigation water occurs in a short period of time, or highly water soluble pesticides are used. To gain a better understanding of how, where and why water runs off and how to prevent pollution read the following UNL publications:

Pesticide Drift Reduction & Prevention

Pesticide drift occurs when pesticides are transferred in air away from the intended application site into adjacent areas. Pesticides can move as spray droplets, vapor drift, or solid particle drift.

Reducing Off-Site Movement of Atrazine and Pesticides

The US Environmental Protection Agency is conducting an intermediate reassessment of atrazine label certification to ensure the safety of atrazine found in streams for aquatic life and human health. As part of this effort Syngenta was required to set up 40 monitoring stations in potential runoff sites across the Midwest.

Nebraska Extension Publications on Pesticides

Pesticide Management for Water Quality Protection in the Midwest Cleaning Pesticide Application Equipment Rinsing Pesticide Containers

Nebraska Extension Gears Up for 2021 Pesticide Safety Training

The Pesticide Safety Education Program’s (PSEP) primary goal is always to deliver quality training to Nebraska’s current and prospective applicators. Most agree that the best way to accomplish that is through conventional, in-person training sessions. For that reason, Nebraska Extension intends to host in-person training for both private and commercial/noncommercial applicators in 2021 while adhering to local and state health guidelines. This includes training for recertifying applicators and for people getting licensed for the first time (“initial” training). Most, if not all, training sites are expected to operate at reduced capacity during the training season. This will allow meetings to continue under state and local health guidelines, but will also mean space for participants will be limited. Some counties may schedule more meetings to accommodate for reduced capacities. Online training for private applicators is also available.

Manure Use and Composting following Application of Certain Herbicides

The prices of synthetic fertilizers have increased significantly over the last year leaving growers and even homeowners facing the decision of finding alternative sources of nutrients. One great option is the use of manure or compost from a local farm or from your own operation. The use of manure in gardening can loosen compacted soil, increase carbon in the soil, and reduce surface runoff and leaching all while providing nutrients that your plants need. While this option is great, it is important to be aware of the potential carry over of herbicides in manure from grazing animals.

Pesticide Safety Certification Training for Private Applicators in 2023

There are several important changes to Nebraska's application certification/licensing program for 2023, including age requirements, identification information, aerial licensure and more.

Pesticides need to be managed in such a way to optimize pest control while minimizing pesticide loss to the environment.