What are the ecological effects of pesticides?
More generally, pesticides reduce species diversity in the animal kingdom and contribute to population decline in animals and plants by destroying habitats, reducing food supplies and impairing reproduction (Kegley, et al, 1999).
How do pesticides impact society?
Chronic (Long-term) Health Effects Pesticides have been implicated in human studies of leukemia, lymphoma and cancers of the brain, breasts, prostate, testes and ovaries. Reproductive harm from pesticides includes birth defects, still birth, spontaneous abortion, sterility and infertility.
What are the important ecological characteristics of pesticides?
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.
How do pesticides affect the environment and human health?
Pesticides have been associated with short- and long-term effects on human health, including elevated cancer risks and disruption of the body’s reproductive, immune, endocrine, and nervous systems,3 as well as malignant melanoma.
How do pesticides affect biodiversity?
The Adverse Effects of Pesticides As has been documented, certain pesticides, when introduced to aquatic environments, cause a decline in species diversity of aquatic organisms and predatory insects.
How can pesticide use be harmful to human agriculture?
Explanation: Excessive use of pesticides can contaminate the soil. It can also prove fatal to the biotic components who feed on the by products of agriculture. It can reach groundwater and make it unfit for our consumption.
What are disadvantages of pesticides?
On the other hand, the disadvantages to widespread pesticide use are significant. They include domestic animal contaminations and deaths, loss of natural antagonists to pests, pesticide resistance, Honeybee and pollination decline, losses to adjacent crops, fishery and bird losses, and contamination of groundwater.
How pesticides and chemicals have positive and negative impact on society?
By controlling insects and rodents, pesticides prevent the spread of disease and protect buildings from termite infestations. Pesticides also keep the price of clothing and food down by eliminating predators that would destroy crops, raising the cost of things like corn and cotton.
How do pesticides and fertilizers pollute the environment?
Farmers usually apply more than the recommended amount to protect crops from pests. The excessive amount of fertilizers in the soil is transferred into the water stream of rivers and lakes, and eventually reaches the ocean, causing environmental damage.
How does the use of pesticide affect the levels of biological organization?
Pesticides are a major factor affecting biological diversity, along with habitat loss and climate change. They can have toxic effects in the short term in directly exposed organisms, or long-term effects by causing changes in habitat and the food chain.