Insect Pest Control
Q.

why dois a tree covered in ladybirds and leaves dripping in what looks like sap

Zone SM6 7BA | jenniferdrayton added on June 18, 2018 | Answered

hundreds of ladybirds and larva with green/black fly whole tree covered also in this sticky substance

A.
A.Answers to this queston: Add Answer
drtreelove
Certified GKH Gardening Expert
Answered on June 18, 2018

The lady beetles and their larvae are natural pest predators, feasting on an insect pest, probably aphids.
The sap-like substance is "honeydew", the excretion from the sucking insect pest.

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