First Report of Cylindrocarpon liriodendri Causing Black Foot Disease of Grapevine in California

Neonectria liriodendri sp. nov., the main causal agent of black foot disease of grapevines

Black foot disease is a serious disease of grapevine crops in most areas where vines are grown. Mainly two species of Cylindrocarpon, C. destructans and C. macrodidymum, are associated with this disease. Recent studies have revealed a tremendous molecular variation within the former but only slight molecular variation within the latter, indicating that C. destructans presents a complex of sever...

First report of Johne's disease in Iran

First report of Fusarium chlamydosporum causing crown rot and dumping of on Durum wheat in Algeria

Several species of Fusarium infect durum wheat plants in the eastern part of Algeria. Endophytic fungus from random wheat seeds were sampled from fifty locations in eastern Algeria and shows the existence of Fusarium chlamydosporum regarding the macroscopic and microscopic characteristics. Molecular identification using EF1 and ITS1 primers were confirmed the presence of Fusarium chlamydosporum...

first report of cladosporium sphaerospermum causing leaf spot disease of aloe vera in india

this paper deals with the study of a leaf spot disease observed on aloe vera leaves in various nurseries and botanical gardens during the routine surveys of two consecutive years of 2010 and 2011. the symptoms appeared in the form of circular to oval, brown to black, sunken spots on abaxial surface of leaves. the disease was observed only in january to february during the survey. colonieson pda...

Grapevine Production in California

By the time of the Gold Rush, the vineyard area had reached a few hundred acres and grapes were sold to high prices in Los Angeles and San Francisco [3, 10] . As a consequence of the lucrative prices, many vineyards were planted and the area reached 56,000 acres in 1880 [10] . However, due to Pierce’s Disease in the 1880s, areas in the south became unsuitable to vines and the industry was force...