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Question 1 of 9
1. Question
Preemergence herbicides do not need to be activated
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Question 2 of 9
2. Question
Annual weed seeds predominate in
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Question 3 of 9
3. Question
A preemergence herbicide should not be watered in until three or four days after after application.
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Question 4 of 9
4. Question
Two to three inches of rain are required to activate all herbicides
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Question 5 of 9
5. Question
Increased microbial activity in the soil increases herbicide breakdown, thus minimizing the effectiveness of preemergence herbicides.
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Question 6 of 9
6. Question
Too much rain or irrigation reduces effectiveness of preemergence herbicides by
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Question 7 of 9
7. Question
Gallery provides adequate cabgrass control.
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Question 8 of 9
8. Question
In Virginia, Annual Bluegrass typically germinates in spring.
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Question 9 of 9
9. Question
In southeast Virginia, crabgrass typically germinates from
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