Challenge your understanding of modern pest management in agriculture with practical scenarios and integrated pest control methods. Enhance your knowledge of sustainable and effective strategies to protect crops and ensure productive harvests.
Which of the following best illustrates the use of Integrated Pest Management (IPM) on a farm?
Explanation: Integrated Pest Management involves a mix of cultural, biological, and chemical methods, using each when most effective and least harmful. Broad-spectrum and routine spraying ignores IPM's selective principle. Continuous monoculture increases pest problems. Flooding can be disruptive and is not universally effective or sustainable.
What is an example of biological control in pest management for agriculture?
Explanation: Introducing predators like ladybugs to control pest insects is a classic biological control technique. Burning residues is a cultural practice, neem oil is a botanical pesticide, and pheromone traps serve mainly for monitoring, not direct control.
Why is it advised to use selective rather than broad-spectrum pesticides in agricultural pest management?
Explanation: Selective pesticides minimize harm to helpful insects and the environment while controlling target pests. They are not always cheaper, do not necessarily act more quickly, and unlike broad-spectrum types, help maintain ecological balance rather than simply increasing yields.
What does the term 'economic threshold' refer to in pest management?
Explanation: The economic threshold is a pest population level where action is justified to avoid economic loss. It does not refer to the budget for pesticides, replacement costs, or weather-related losses.
Which practice is a form of cultural control for pest management in agriculture?
Explanation: Using pest-resistant crops is a cultural control method that helps prevent pest outbreaks through plant selection. Fertilizers focus on plant nutrition, plastic sheeting may serve as physical control, and routine pesticide sprays are chemical control, not cultural.