Abstract Background Spiroplasma citri comprises a bacterial complex that cause diseases in citrus, horseradish, carrot, sesame, and also infects wide array of ornamental weed species. S. is transmitted persistent propagative manner by the beet leafhopper, Neoaliturus tenellus North America Circulifer haematoceps Mediterranean region. Leafhopper transmission pathogen’s host range serve as driver...

in a faunistic survey conducted on auchenorrhyncha in sugar beet fields of mashhad and chenaran regions during 2008-2010, a total of 2741specimens belonging to 5 families were collected. as a result, 10 species were added to the fauna of the study area including: family cicadellidae: rhytidodus decimusquartus (schrank 1776), viridicerus malicola (dubovxdy 1966); handianus procerus (herrich-scha...

Artemisia sieberi (Asteraceae) is an important perennial plant that common in the pastures, mountains and deserts of Iran. In 2019, A. showing little leaf, yellowing, internode shortening witches’-broom symptoms (Fig. 1) were observed around Abarkooh (Yazd province, Iran). The disease incidence was up to 5%. Total DNA extracted from 0.2 g fresh midrib tissue 10 diseased five symptomless plants ...

iranian species of the leafhopper genus neoaliturus distant, 1918 (n. alboflavovittatus (lindberg), n. decemocellatus (dlabola); n. dubiosus (matsumura), n. fenestratus (herrich-schäffer), n. guttulatus (kirschbaum), n. haematoceps (mulsant and rey), n. opacipennis (lethierry), n. pulcher (haupt); n. tenellus (baker)) are reviewed. detailed morphological descriptions and illustrations and a key...

At least 16 taxa of cicadellids and delphacids were tested by polymerase chain reaction (PCR) for the presence of a phytoplasma in the clover proliferation group, designated 16SrVI. Nucleic acid extracts from individual insects or groups of 5-10 were tested using PCR primers designed from the DNA sequence of 16S-23S rRNA or ribosomal protein genes of the pathogen. The beet leafhopper, Circulife...