21.   Bees of various kinds, especially honey bees, and other social insects are the most familiar and important pollen carriers.

22.   Besides serving as visual aids, the insects also have been subjects in student research projects.

23.   A. The insects are wasps, not bees.

24.   Also, if the insects are to blame, they might now be long gone.

25.   But these specimens had been collected live during expeditions in the last century, suggesting that these insects were not extinct.

26.   Can you tell me what these insects might be and how to control them?

27.   Do so in the cool of the evening, when the insects are less active and most are in the nest.

28.   Ecologists have sought to understand why insects are so restricted, and many have struggled to find simple explanations.

29.   During mid-July, the insect is in its egg stage.

30.   During the winter the insects are dormant, so no further damage is being done.