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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]
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.
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 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 , as well as important cereal crops such as wheat and barley.
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.
Global warming has brought Argentina's corn farmers a dangerous new enemy: a yellow insect just four millimeters (0.16 inch) long that thrives in hotter temperatures and is threatening harvests of ...
Aster is a genus of perennial flowering plants in the family Asteraceae. Its circumscription has been narrowed, and it now encompasses around 170 species, all but one of which are restricted to Eurasia; many species formerly in Aster are now in other genera of the tribe Astereae. Aster amellus is the type species of the genus and the family ...
An aster is a cellular structure shaped like a star, consisting of a centrosome and its associated microtubules during the early stages of mitosis in an animal cell. [1]: 221 Asters do not form during mitosis in plants. Astral rays, composed of microtubules, radiate from the centrosphere and look like a cloud. Astral rays are one variant of ...