Pesticide Resistance

Crop rotations can help reduce pesticide resistance.

• True

• False

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Why do many farmers prefer to use Bt corn?

• Because it is 100% effective against the corn borer insect

• Because the seeds are cheaper than regular corn seeds

• Because they no longer have to spray the crops with pesticides

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Which of the following is an impact of pesticide use?

• Accumulation of pesticide chemicals in wild species

• Increased crop yield

• Top soil enhancement

• Pesticide resistance popultions

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Which would increase the likelihood of pesticide resistance?

• An insect has only one generation per year.

• Continual use of the same pesticides or pesticides from the same chemical class.

• Applying a pesticide that has little or no residual effect.

• Limiting the number of pesticide applications.

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As a pesticide kills off weaker individuals and leaves stronger individuals, the gene pool of the pest changes.  This is an example of

• genetic resistance

• synergistic doses

• the pesticide treadmill

• a threshold dose

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What is pesticide resistance?

• A) The ability of pests to survive exposure to a pesticide that once killed them

• B) The ability of crops to resist pests without pesticides

• C) The reduction of pesticide effectiveness due to environmental factors

• D) The use of pesticides to enhance crop growth

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Which of the following practices can help delay the development of pesticide resistance?

• A) Using a single type of pesticide repeatedly

• B) Rotating different types of pesticides

• C) Increasing the dosage of pesticides

• D) Applying pesticides only during the rainy season

How does pesticide resistance occur in pest populations?

• A) Through natural selection where resistant individuals survive and reproduce

• B) By genetic modification of crops

• C) Due to changes in weather patterns

• D) By reducing the amount of pesticide used

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What is a potential consequence of widespread pesticide resistance?

• A) Increased biodiversity

• B) Higher crop yields

• C) More frequent pest outbreaks

• D) Reduced need for pest control measures

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Which of the following is a method to manage pesticide resistance?

• A) Using biological control methods

• B) Increasing pesticide application frequency

• C) Ignoring resistance development

• D) Using outdated pesticides

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