Question

How are honey dews produced by aphids?

Answer 1

Aphids are green insects that feed on plant phloem. In order to obtain the plant sap, they pierce the plant tissues with its long needle like organ “proboscis”.
Aphids absorb so much sugar from the phloem that they cannot assimilate all of it and it excretes out of the out of the body as a sticky syrup called honey dew.
Leaves which have been attacked by aphids often feel sticky as a result of honey dew.