Young spittlebugs feed by sucking juice from plants. Some of this juice passes through their bodies and oozes as bubbles from openings on their bodies. The bubbles don't burst easily, so they quickly pile up. Sometimes these young spittlebugs are completely covered with bubbles.
Canadian Tree Guide
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Hop-Hornbeam
hop-hornbeamOstrya virginiana (Mill.) K. Koch.
Hop-hornbeam is a small (>9 m) tree. It has an exquisitely shaped crown which is often as wide as it is high. Birds and small mammals feed on hop-hornbeam nuts and honeybees produce a delicious honey from the flowers. The wood is heavy and very hard.