Science: Island Bug War

The classic method of bug control—fight bug with bug—is still the best, cleanest and most economical. When it works ideally, the first bug is eliminated, and the second dies of starvation. More commonly, both bugs survive, reduced to harmlessness.

Hawaii's Territorial Board of Agriculture and Forestry, troubled by two new pests, hoped that the old method would work again. The pests: 1) the anacamptodes moth, a bright little creature whose larvae have riddled the islands' main forage crops; 2) the pineapple mealy bug, a small, white, wingless sapsucker that might wilt every pineapple plant...