Editorial photo #641555 Environmental Issue
Cuckoo spit, caused by froghopper nymphs
White frothy liquid appearing on the stem of a plant in Manchester on Monday 15th June 2015. -- Cuckoo spit commonly appears in late spring as the froghopper nymph sucks the sap out of plants and leaves a white, frothy liquid in its wake. Despite the name, Cuckoo spit has no connection with the bird. According to the Royal Horticultural Society website, 'each blob contains a creamy white insect nymph up to 4-6mm (¼in) long and plant growth is usually unaffected.' (Photo by Jonathan Nicholson/NurPhoto)