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The aster leafhopper is a small species, with males reaching about 3.3 mm (0.13 in) in length and females about 3.7 mm (0.15 in). The fore-wings are greyish-green while the abdomen is yellowish-green. Six pairs of minute black spots or streaks on the head give the insect its alternative name of six-spotted leafhopper. [1]
Aster leafhopper (Macrosteles quadrilineatus) Aster yellows is a chronic, systemic plant disease caused by several bacteria called phytoplasma . [ 1 ] The aster yellows phytoplasma (AYP) affects 300 species in 38 families of broad-leaf herbaceous plants, primarily in the aster family , and important cereal crops such as wheat and barley.
Macrosteles is a leafhopper genus in the tribe Macrostelini with more than 80 species, most in the northern hemisphere. Some species are known to migrate. Some species are known to migrate. [ 2 ]
Aster is a genus of flowering plants in the family Asteraceae. As of August 2024 Plants of the World Online accepts 186 species. [1] For species formerly placed in ...
Leafhopper is the common name for any species from the family Cicadellidae. These minute insects , colloquially known as hoppers , are plant feeders that suck plant sap from grass, shrubs, or trees.
The family is commonly known as the aster, daisy, composite, or sunflower family. Most species of Asteraceae are herbaceous plants, and may be annual, biennial, or perennial, but there are also shrubs, vines, and trees. The family has a widespread distribution, from subpolar to tropical regions, in a wide variety of habitats.
For example, the leafhopper Macrosteles quadrilineatus laid 30% more eggs on plants expressing SAP11 transgenically than control plants and 60% more eggs on plants infected with AY-WB. [23] Phytoplasmas cannot survive in the external environment and are dependent upon insects such as leafhoppers for transmission to new (healthy) plants.
Common names include panicled aster, lance-leaved aster, and white panicled aster. It is a perennial , herbaceous plant that may reach 1.5 meters (5 feet) tall or more, sometimes approaching 2 m ( 6 + 1 ⁄ 2 ft).
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