Curated OER
Pesticide Watch Card
Young scholars examine human health by identifying dangerous pesticides. In this agriculture lesson, students research the food production system in the United States and discuss dangers such as pesticides, chemicals and insecticides...
Curated OER
LD50 of NaCl to Gammarus spp.
Students learn the meaning of LD50 through lecture and discussion. Through experiment, students graph and calculate the LD50 of salt on fresh water amphipods. Students compare results of the experiment with pesticides and pollutants.
Curated OER
Just Spray 'Em!?
Students read the label of an insecticide and identify pertinent information. They tell that the higher the LD50 the less toxic the chemical. Students begin to extrapolate the impact of pesticide use beyond the death of the insect.
University of Wisconsin
The Why Files: Honeybees Getting Lost?
As colony collapse disorder continues to attack honeybee hives, a new study shows that a common insecticide interferes with their return flights.
Encyclopedia of Earth
Encyclopedia of Earth: Ddt
Information about the insecticide DDT, a toxic chemical that was used widely in World War II and later, and is still used in some countries today. It has had far-reaching effects on the environment, as it is carried long distances by air...
TED Talks
Ted: Ted Ed: Do We Really Need Pesticides?
Annually, we shower over 5 billion pounds of pesticides across the Earth to control insects, unwanted weeds, funguses, rodents, and bacteria that may threaten our food supply. But is it worth it, knowing what we do about the associated...
US Environmental Protection Agency
Epa: Assessing Health Risks From Pesticides
This site provides information about the active ingredients registered as pesticides. Site discusses toxicology, exposure, dose-response and risk characterization.
CK-12 Foundation
Ck 12: Life Science: Control of Insects
[Free Registration/Login may be required to access all resource tools.] Ladybugs won't hurt you. But they are dangerous to some other insects! Ladybugs eat plant-harming bugs known as aphids. Since they have an appetite for aphids,...