Insects Seen and Unseen

Aphids on Helianthus, Schenley Park, 9 July 2020 (photo by Kate St. John)

12 July 2020

It’s easy to find insects in July.

Aphids in Schenley Park are expanding from plant to plant along the gravel trails, sucking the juice out of Jerusalem artichokes (Helianthus tuberosus).

Yellow hawkweeds (Pilosella caespitosa) are attracting bee-like insects.

Wasp or bee on hawkweed, Schenley Park, 6 July 2020 (photo by Kate St. John)

And some insects are unseen but have left evidence behind. Can you see two kinds of insect evidence on this crabapple tree?

Insect evidence on crabapple, Schenley Park, 9 July 2020 (photo by Kate St. John)

(photos by Kate St. John)

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