Thousand Cankers Disease (TCD) is a disease complex wherein the fungus (Geosmithia
morbida) is vectored by the walnut twig beetle (WTB, Pityophthorus juglandis). The disease …

This chapter discusses the native ranges, histories of introduction, recent research efforts,
and the potential impacts of some of 22 species of invasive scolytids in California's …

The walnut twig beetle, a native phloem-boring bark beetle originating on Arizona walnut,
has invaded urban, orchard, and native forest habitats throughout the USA as well as in Italy …

Mediterranean climates are characterized by mild wet winters and warm dry summer
conditions. They can be found around the Mediterranean Sea and on portions of the …

Thousand cankers disease (TCD) is caused by the walnut twig beetle (Pityophthorus
juglandis) vectoring the fungal canker pathogen Geosmithia morbida, which can result in …

Thousand cankers disease (TCD) results from the combined activity of the fungal pathogen,
Geosmithia morbida Kolařík, Freeland, Utley, and Tisserat and its principle vector …

Logs of high-value eastern black walnut (Juglans nigra L.) are commonly exported from the
United States for production of veneer and lumber. Veneer logs are not debarked to …

Thousand cankers disease (TCD), caused by the walnut twig beetle (WTB), Pityophthorus
juglandis, and its associated fungal symbiont, Geosmithia morbida, is a disease of economic …

This pest survey card was prepared in the context of the EFSA mandate on plant pest
surveillance (M‐2017‐0137) at the request of the European Commission. Its purpose is to …

A new and devastating disease, rapid ohia death (ROD), in Hawaii led to a state quarantine
that regulates interisland transport of ohia wood and plant material to prevent spread of the …