Phytoplasma
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Phytoplasmas are a group of Bacteria that are obligate intracellular parasites of plant phloem tissue and of the insect vectors that are involved in their plant-to-plant transmission. Phytoplasmas wer
Phyllody on Coneflower with aster yellows
A grape vine with "Candidatus bois noir" phytoplasma disease
A grape vine with "flavescence dorée" phytoplasma disease
Coconut palms dying of lethal yellowing disease
Leafhopper
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Leafhopper is the common name for any species from the family Cicadellidae: based on the type genus Cicadella. These minute insects, colloquially known as hoppers, are plant feeders that suck plant sa
Phytoplasma
…are most prevalent in tropical and subtropical regions. They are transmitted from plant to plant by vectors (normally sap-sucking insects such as leafhoppers) in which they both survive and replicate. References to diseases now known to be caused by phytoplasmas can be found as far back as 1603 (mulberry…
Two lined gum treehopper 03
Candy-striped leafhopper (Graphocephala coccinea)
Eurymela distincta
Nymph of an unidentified Typhlocybinae species