Valsa malicola detected in Victoria, Australia

 

old revision

Дата публикации

Вт, 30 Июн 2015, 06:19

Последнее обновление

Июнь 30, 2015, 6:19 д.п.

Report Number

AUS-44/3

Страна

Australia

Идентификационная информация о вредном организме

Valsa malicola - (VALSMC)

Статус оповещения

Final

Растения-хозяева

Malus domestica cv Granny Smith

Pest Status (old values from ISPM 8 -1998 )

• Present: at low prevalence
• Unknown

Pest Status (ISPM 8 - 2021)

• Present: at low prevalence

Географическое распространение

Yarra Valley, Victoria , Australia Possibly common in Australia as all Valsa/Cytospora species are difficult or impossible to identify based on morphology. Valsa ambiens is common on apple in Australia and some of these records could be V. malicola.

Краткое описание

V. malicola is associated with dieback of Malus twigs, especially those weakened by other factors, for example when frozen, burnt, wounded, injured by insects or attacked by other pathogens.

It is found on dead or dying twigs of Maloideae (Cotoneaster, Crataegus, Cydonia, Malus, Pyracantha, Pyrus, Rosa) but only infrequently on other members of the Rosaceae (e.g. Prunus) when it is present mainly as the anamorph. Both conidia and ascospores are air-borne, especially under humid conditions. Brightly coloured droplets or tendrils of conidia are often exuded from conidiomata after rain.

It is found in Asia: Armenia, Azerbaijan, China, Republic of Georgia, Kazakhstan, Russia. Europe: Austria, Czech Republic, Germany, Italy, Latvia, Lithuania, Portugal, Rumania, Russia, Slovakia, Sweden, Switzerland, UK, Ukraine. North America.

Опасность

Valsa malicola was detected in an apple orchard on a mature tree during a survey. The fungus was affecting twigs and possibly branches. It is a weak opportunistic pathogen that usually has no effect on fruit production.

Свяжитесь для получения информации

Chief Plant Protection Officer Australian Government Department of Agriculture, Fisheries and Forestry GPO Box 858 Canberra ACT 2601 Australia [email protected]

Файлы отчета

Веб-сайт

Ключевые слова по изданию

Pest status:Present/Presence

Ключевые слова по товарам