18 Questions
What is the primary reason for the development of pesticide resistance in pests?
Overuse of pesticides leading to natural selection
What happened to the boll weevil in cotton after the introduction of DDT?
It showed resistance to DDT in about 5 years
What is a consequence of the overuse of pesticides?
Primary pest resurgence and death of natural enemies
When was the concept of Integrated Pest Management (IPM) first introduced?
1920s
Why did the development of effective and inexpensive pesticides hinder the development of IPM?
They made IPM seem unnecessary
How many species of insects have developed resistance to one or more pesticides?
More than 500
What is an example of a preventative practice in integrated pest management?
Planting a potato leafhopper-resistant alfalfa variety
Why might an insecticide treatment not be necessary for leafhoppers?
Because potato leafhopper-resistant alfalfa varieties are used
What is the key factor in deciding whether to initiate pest management techniques?
The cost of control versus the expected damage
Why might more alternative pest management practices be used in high-value vegetable crops?
Because they have higher profit potential
How do high-value crops differ from low-value commodity crops in terms of pest management?
They sustain economic loss at lower pest levels
What is the goal of integrated pest management?
To balance pest control with economic considerations
What was the primary basis for pest control strategies before the implementation of IPM programs?
Calendar dates and neighbours' treatment initiatives
What was the outcome of monitoring in apple orchards during the early IPM implementation?
Large decreases in applied pesticides
What is the primary goal of IPM programs?
To reduce the impact of pests on crops or urban situations
What is the purpose of rescue treatments in IPM programs?
To be used only when preventative practices fail
What is the focus of IPM philosophy in pest management?
Reliance on preventative practices and balancing their strengths
How did farmers initially respond to IPM programs?
With skepticism and hostility
Learn about the preventative practices and strategies used in integrated pest management, including the use of resistant crop varieties and economic considerations. Understand how to manage pest populations effectively and make informed decisions about insecticide treatment. This quiz covers the key concepts of IPM and its application in agricultural settings.
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