Posts Tagged: pistachio
California nut growers have benefited from the use of phosphite products, marketed and sold both as...
Pistachio leaf morphology
Jennifer Randall, Research Associate Professor in the Department of Entomology, Plant Pathology and Weed Science at New Mexico State University provided a presentation on “Pistachio Bushy Top Syndrome: Disease etiology and diagnosis procedures" on April 7, 2015 at Kearney Agricultural Research and Extension Center (KARE).
The presentation was followed by a Q&A session conducted by Randall; Florent Trouillas, Assistant Cooperative Extension Specialist at KARE and in the Department of Plant Pathology at UC Davis specializing in fruit and nut crops; Craig Kallsen, UC Cooperative Extension advisor in Kern County, specializing in citrus, subtropical horticulture and pistachios; Robert Beede, UC Cooperative Extension advisor, emeritus, in Kings County, specializing in horticulture: tree fruit, nuts and grapes; and Elizabeth Fichtner, UC Cooperative Extension advisor in Tulare County, specializing in orchard systems.
Background: In the last few years, a new disease affecting UCB1 rootstocks emerged in CA, AZ, and NM. This disease was named Pistachio Bushy Top Syndrome (PBTS). Scientific evidence in 2014 demonstrated that PBTS is caused by the bacterium, Rhodococcus fascians (Rf). The percentage of rootstock exhibiting symptoms varies widely among plantings. At least 20,000 acres in CA have been affected to some extent. Two strains of Rf have been identified. Each is pathogenic, and they act synergistically to cause more severe disease symptoms. Pistachio growers in CA need to test for the pathogen in their newly planted orchards. This workshop attempted to bring academic, private and governmental diagnosis labs up to date on this new disease. Dr. Jennifer Randall from NMSU presented her group's latest research on the disease biology and detection methodologies.
Question and answer session at Kearney after a presentation on Pistachio Bushy Top Syndrome: disease etiology and diagnosis procedures.
UC President Janet Napolitano and the President's Advisory Commission visited KARE on April 14, 2014. The stated purpose of the visit was to meet with the PAC to discuss issues facing agriculture and to visit KARE and learn more about what we do and the importance of our research and outreach. The President learned about the work we are doing to control mosquitos (Anton Cornel), our work to support small farmers and the blueberry industry (Manuel Jimenez), the use of AF36 to control aflatoxin in pistachios (Themis Michailides), and the importance of rootstocks (Louise Ferguson). The President and her PAC were engaged and enthusiastic about their visit to the Center. We also shared information on what we are doing to conserve energy and provided a general field tour. The Fresno Bee wrote an article on the visit.
Anton Cornel shares information on his mosquito control research program with the UC president and her advisory commission.
Manual Jimenez discusses his blueberry research and extension program with the UC president and her advisory commission.
Themis Michailides discusses his work on AF36 with the UC president and her advisory commission.
Louise Ferguson discusses the importance of rootstocks with the UC president and her advisory commission.
Robert Ray and Jeffery Dahlberg discussed Kearney's energy conservation strategies and different field research projects conducted at KARE with the UC president and her advisory commission.
When you first see the leaffooted bug, you know immediately how it got its name. The appendages on...
Close-up of leaffooted bug. (Photo by Kathy Keatley Garvey)
Leaffooted bugs making pomegranates their kitchen, living room and bedroom. (Photo by Kathy Keatley Garvey)
Beady eyes, colorful antennae and appendages on its feet that look like leaves. (Photo by Kathy Keatley Garvey)
Chemical ecologists at the University of California, Davis, are changing their navel-orangeworm...
Young scientist Gabriel Leal