I will speak about canker diseases affecting nut crops tomorrow 11/3/22 at the California Tree Nut Conference in Tulare, CA. #almond #pistachio

Help the Nickels Soil Lab help California agriculture. myaglife.com/fundraiser/ The Nickels Soil Lab (near Arbuckle, CA) has hosted many important, practical orchard research over the past 40-50 years, mostly focused on almond and walnut (and olive) production.

✂️Choose the best time to prune almond trees, and protect the wounds for 2 weeks when they are most susceptible to canker: bsppjournals.onlinelibrary.wiley.com/doi/abs/10.111…

Intriguing #Phytophthora syringae infecting twigs and branches on #almond trees in the absence of obvious wounds, most likely as a results of the successive atmospheric river events in California in late December and January. Mae Culumber Alejandro Hernandez

NOAA Sac( weather.gov/sto/) forecasts a hard freeze for the next 2 mornings (Mar 1-2) in North/central Sac Valley. Growers w sprinkler irrigation should start water when wet-bulb temp is above the critical temp. Critical temp/bloom stage info at: sacvalleyorchards.com/almonds/hortic…

Inoculation day in the San Joaquin Valley. ⁦Ag&Natural Resources⁩ ⁦Fruit & Nut Research & Information Center⁩

Bacterial blast caused by Pseudomonas syringae affecting blossoms of highly susceptible cherry trees in Tulare County, California

#2023APPSAdelaide Plant Pathogens (APPS) INVITED SPEAKER Assoc Prof Florent Trouillas | UC Davis & Kearney Ag Florent Trouillas bit.ly/3Jh0z4R Join us bit.ly/2023APPSAdel

High incidence of Colletotrichum Anthracnose observed today on #walnut Lara cultivar in Grenoble region with colleagues from SENuRA.

BeXyl coordinator Blanca B. Landa and Juan A. Navas-Cortés (personal) are visiting today California almond plots infected by #Xylella. A collaboration with Florent Trouillas CA&ES, UC Davis Ag&Natural Resources

Last week we discussed all things fungal trunk disease, Phytophthora and Monterey decline during field walks in South Australia, Sunraysia and Riverina 🌳 We compared the Californian and Australian experience with Florent Trouillas and Dr Len Tesoriero #IDM #phytophthora Almond Board of Australia 🌸🚜🥗

Calosphaeria canker of sweet cherry occurs worldwide and can be easily diagnosed in the field by removing the bark periderm and looking for the typical perithecia of Calosphaeria pulchella occurring in circinate groups. ⁦Ag&Natural Resources⁩ ⁦UC Statewide IPM Program⁩

Cytospora canker is a severe disease of stone fruit worldwide. Infection commonly develop at pruning wounds or sunburn lesions. More info about the current taxonomy of Cytospora species associated with fruit and nut crops can be found here: imafungus.biomedcentral.com/articles/10.55…

Check out our latest article discussing aerial Phytophthora diseases of almond. With strengthening El Niño conditions and the possibility of a recurring outbreak, we provide novel insights into disease biology and management strategies. sacvalleyorchards.com/almonds/trunk-…

Recent rain & #ElNino conditions create favorable conditions for aerial Phytophthora pathogen. Although it doesn't kill the #almond tree, the disease causes branch dieback that requires significant additional work & expense for growers. #CAwx Florent Trouillas tinyurl.com/49jmp38e

Early and foggy extension work this morning in the Central Valley.

With the almond bloom being right around the corner, we summarize here current knowledge about disease risk and management of Bacterial blast of almond caused by Pseudomonas syringae. sjvtandv.com/blog/risk-of-b…

Very successful APS Pacific Division meeting in Corvallis, OR. Here is a capture of the UC Davis crew, with alumni and the current graduate students!

Glad to share our latest research article reexamining #Pseudomonas syringae from #almond in California #PLOSONE: Phylogenomic analyses and comparative genomics of Pseudomonas syringae associated with almond (Prun ... dx.plos.org/10.1371/journa…

Examining #Cytospora dieback and #Phellinus wood decay both contributing to a severe decline of French prune in Northern California. With ⁦L. Hoffman⁩