The olive quick decline syndrome (OQDS) is a disease that appeared suddenly a few years ago in the province of Lecce (Salento peninsula, southeastern Italy). Among the factors that may be involved in its aetiology, the most relevant is Xylella fastidiosa, a quarantine pathogen of American origin,...

Diseases caused by Tobacco streak virus (TSV) have resulted in significant crop losses in sunflower and mung bean crops in Australia. Two genetically distinct strains from central Queensland, TSV-parthenium and TSV-crownbeard, have been previously described. They share only 81% total-genome...

PVY is distributed worldwide in potato growing areas, tobacco growing areas and outdoor crops of tomato and pepper in warm countries. The different strains of PVY develops different symptoms on different parts of the host plant species. The PVY have a host range of 495 species in 72 genera of 31...

Taxonomy: Iris yellow spot virus (IYSV) is in the genus Tospovirus, family Bunyaviridae, with a single-stranded, tri-segmented RNA genome with an ambisense genome organization. Members of the other genera in the family infect predominantly vertebrates and insects. Geographical distribution: IYSV is ...

Leonurus sibiricus [L. japonicus] (family Lamiaceae) has been used as a traditional herbal remedy to treat various gynecologic diseases. Although it is a widely distributed subtropical weed in Southeast Asia, L. sibiricus have been commercially cultivated on a small scale in many geographic areas...

A new disease was recorded to occurring naturally in field grown bulb and seed crop of onion cv. Hisar-2 in northern India. Symptoms of the disease comprised hay coloured and water soaked spots of irregular shapes and sizes on leaves of bulb and seed crops. These spots were also observed on the...

The polyphagous shot hole borer (PSHB) is an invasive ambrosia beetle that forms a symbiosis with a new, as-yet-undescribed Fusarium sp., together causing Fusarium dieback on avocado and other host plants in California and Israel. In California, PSHB was first reported on black locust in 2003 but...

The red streaked leafhopper, Balclutha rubrostriata (Melichar) (Hemiptera: Cicadellidae), is an invasive insect from southeastern Asia that is known to be a vector of the phytoplasma that causes Sugarcane White Leaf Disease (SCWL). Sugarcane is a vital crop for the United States and is being...

In Brazil, serious epidemics of begomovirus diseases have been successfully reported since the mid-90s, among them those caused by Tomato yellow spot virus (ToYSV). In July 2009 to October 2010, high incidences (40-60%) of plants of the weed Leonurus sibiricus [L. japonicus] (Lamiaceae) exhibiting...

Three traditional Maori food sources, namely taewa (Maori potato, Solanum tuberosum ssp. andigena and ssp. tuberosum), kumara (sweetpotato, Ipomoea batatas) and poroporo (Solanum aviculare syn. S. laciniatum), are known hosts of the tomato/potato psyllid (TPP or Bactericera cockerelli) in New...