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Cuckoo spit begins to appear in late spring at a time when the familiar call of cuckoos can be heard, but otherwise has no connection with the bird.
Cuckoo spit is a white frothy liquid secreted by the nymphs of a sap-sucking insect known as a froghopper.
Capsid bugsFuchsia rustGreen shield bugsMealybugPieris lacebugScale insectsWoolly aphid
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