Photo AI
Explain why it is necessary to have strict controls in the application of pesticides to farm crops. - Leaving Cert Agricultural Science - Question c - 2015
Question c
Explain why it is necessary to have strict controls in the application of pesticides to farm crops.
Worked Solution & Example Answer:Explain why it is necessary to have strict controls in the application of pesticides to farm crops. - Leaving Cert Agricultural Science - Question c - 2015
Step 1
Pollution or Damage to Wildlife
Answer
Strict controls on pesticide application are necessary to prevent pollution or damage to wildlife. Pesticides can leach into soil and water bodies, affecting organisms that inhabit these areas. For example, non-target species may suffer from toxicity due to pesticide exposure, leading to a decline in biodiversity.
Step 2
Toxicity and Bioaccumulation in the Food Chain
Answer
Pesticides can accumulate in the food chain, a phenomenon known as bioaccumulation. When pests consume these chemicals, they can become concentrated in the bodies of predators at higher trophic levels. This accumulation poses significant threats to wildlife and even humans who consume affected organisms.
Step 3
Health Risks to Operators and Consumers
Answer
Controls are vital to mitigate health risks associated with pesticide handling. Farmers and agricultural workers often come into direct contact with these chemicals, which can lead to acute or chronic health issues. Furthermore, consumers may be exposed to pesticide residues on produce, raising concerns about food safety.
Step 4
Impact on Pollination
Answer
Pesticides can adversely affect pollinators, such as bees, which are crucial for crop production. Reduced pollinator populations can diminish crop yields and affect food supply. Therefore, it is essential to implement strict controls to protect these vital species and ensure effective pollination.