Question:
The highest number of resistant weeds are associated with which group of herbicides?
The highest number of resistant weeds are associated with which group of herbicides?
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Herbicide resistance:
- Synthetic auxins: Most resistant weeds.
- Triazines: Also high resistance.
- Glyphosate: Increasing resistance.
- Synthetic auxins: Most resistant weeds.
- Triazines: Also high resistance.
- Glyphosate: Increasing resistance.
Updated On: Aug 27, 2026
- Dinitroanilines
- Bipyridilliums
- Synthetic auxins
- Triazines
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The Correct Option is C
Solution and Explanation
Step 1: Understanding the Question:
This question tests knowledge of herbicide resistance patterns.
Step 2: Detailed Explanation:
The highest number of resistant weed species are associated with synthetic auxins (C).
Examples: 2,4-D, dicamba, and MCPA.
Triazines (D): Also have many resistant species.
Bipyridilliums (B): Paraquat resistance.
Dinitroanilines (A): Resistance to pendimethalin.
Thus, synthetic auxins have the highest number of resistant weeds.
Step 3: Final Answer:
Thus, the highest number of resistant weeds are associated with synthetic auxins, which corresponds to option (C).
[0.5cm]
This question tests knowledge of herbicide resistance patterns.
Step 2: Detailed Explanation:
The highest number of resistant weed species are associated with synthetic auxins (C).
Examples: 2,4-D, dicamba, and MCPA.
Triazines (D): Also have many resistant species.
Bipyridilliums (B): Paraquat resistance.
Dinitroanilines (A): Resistance to pendimethalin.
Thus, synthetic auxins have the highest number of resistant weeds.
Step 3: Final Answer:
Thus, the highest number of resistant weeds are associated with synthetic auxins, which corresponds to option (C).
[0.5cm]
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