Cuckoo spit is produced by the nymphs of sap sucking insects called froghoppers. It is harmless and the insects that produce it are part of the biodiversity a healthy gardens supports.
2+ Hundred Cuckoo Spit Royalty-Free Images, Stock Photos & Pictures
Photograph, Cuckoo Spit and Froghopper Nymph
Warning To Report Spittlebug Froth Sightings In UK Gardens
Cuckoo spit: The foamy white goo on your plants - BBC Newsround
Can you spot cuckoo spit? Scientists call for thousands of volunteers to record froghoppers - Manchester Evening News
Cuckoo Spit and Xylella – The Story So Far
Spittlebug hi-res stock photography and images - Alamy
Cuckoo-spit and the amazing Froghopper
Cuckoo spit and fascinating froghoppers (spittlebugs)
What's inside the cuckoo spit?
Cuckoo Spit Could Be Killing Your Plants - How to Spot Spittlebugs
What the hell is this?