Florent Trouillas

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

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…

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!

@ClinicPlant @APS_PHC @APS_Tropical @plantdisease @UFPlantPath @UFTropical Gorgeous!

How pretty! 🤩 #colletotrichum #anthracnose #papaya #plantdisease #postharvest @APS_PHC @APS_Tropical @plantdisease @UFPlantPath @UFTropical

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…

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

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 @FloTrouillas tinyurl.com/49jmp38e

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-…

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…

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. ⁦@ucanr⁩ ⁦@UCIPM⁩

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 @FloTrouillas and Dr Len Tesoriero #IDM #phytophthora @AusAlmonds

BeXyl coordinator @blancaracol and @janavascortes are visiting today California almond plots infected by #Xylella. A collaboration with @FloTrouillas @ucdavisCAES @ucanr

@pascal_frey Nope, no sign of the beast…

@FloTrouillas Any symptom of Thousand Cankers Disease?

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

#2023APPSAdelaide @Plant_Pathogens INVITED SPEAKER Assoc Prof Florent Trouillas | UC Davis & Kearney Ag @FloTrouillas bit.ly/3Jh0z4R Join us bit.ly/2023APPSAdel

@AqleemAbbas It looks like you are dealing with bacterial canker (Pseudomonas) on some of these images (gumming in the upper trunk). Gumming at the tree base could also be bacterial canker, or possibly Phytophthora. It also look like trees suffered rodent or mechanical injuries at the base...

@FloTrouillas We have problem of gummosis, please watch this video and give us suggestions youtu.be/JKJtftTcu60

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

@RLVoumard Hi Rodney - very little blast in almond this year

@FloTrouillas Bonjour, Flo - seeing any "blast" in Almonds this year ?

@mibustam That’s right.. a wet year and cold temperatures.

@FloTrouillas I wonder if the severity of this disease has gone higher this year because of the rains.

Inoculation day in the San Joaquin Valley. ⁦@ucanr⁩ ⁦@FruitandNut_UCD⁩