When they get infested with aphids, do we think about their enemy, the praying mantis?
How many aphids can he eat in a day?
After he eats all the aphids, what are we going to do, starve him, or buy more aphids?
While the majority of the Thysanoptera are thus vegetarian in their diet, and are frequently injurious in farm and garden, some species, at least occasionally, adopt a predaceous habit, killing aphids and small mites (so-called " red-spiders ") and sucking their juices.
The relation between ants and aphids has often been compared to that between men and milch cattle.
How would you define aphids? Add your definition here.