[Ken was a little surprised at the WV's reaction, but after a bit of pondering he understands --] Actually yes. But here's the deal: products have gone through a lot of change thanks to technology. So there are those that can specifically target insects while not being harmful to other species. Pesticide evaporates and any residue can be washed off so plants can be safely used.
[How much of these things has he read again? Not much but enough, he hopes.] Some have gone up to the point of engineering plants so they can naturally repel insects.