Tuesday August 10, 1999 - Question 4

Which of the following statements about pyrethrins is correct?

A. The presence of pyrethrins can be determined by observing for a urine color change.

B. Pyrethrins work by slowly incapacitating insects.

C. There are two types of pyrethroids.

D. Pyrethrins are very effective against termites.

E. Pyrethrins are one of the newer agents of the botanic insecticides.
 

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