The bottoms of my red and yellow bell peppers are being eaten by something. The only insects I see are grasshoppers -- several of them at a time. I have seen birds take an interest in the plants but have seen only the occasional bird anywhere near them. Could the grasshoppers be eating the peppers? The grasshoppers are brownish in color and a good 2 inches long. If so, how do I make the plants less attractive to the grasshoppers?