Johanna Del Castillo

Assistant Professor of Cooperative Extension
Specialist: Greenhouse and Nursery pathology

[Johanna Del Castillo @Johadelcpp]

@vasengard Lo siento mucho Vini. Cómo está tu familia? Un abrazo

[Johanna Del Castillo @Johadelcpp]

🌱 The UCNFA Summer 2025 issue is here!

🔬 Highlights:

Disease diagnostics in ornamentals

Phytophthora & powdery mildew updates

Scouting tips & slow sand filtration

AIR program for Phytophthora-free plants

👉 Read more: https://t.co/bITY6yklBn

[Johanna Del Castillo @Johadelcpp]

🌱 Help protect CA’s native ecosystems!
The AIR Program at UC Davis helps nurseries grow Phytophthora-free plants for habitat restoration.
Your support funds audits, diagnostics & research.
Let’s restore with confidence! 💚
🔗 [https://t.co/8CWQbH1t3z]

#PlantHealth #Phytophthora

[Johanna Del Castillo @Johadelcpp]

Are you concerned about the impact of Phytophthora on habitat restoration efforts? Join us next Thursday May 22nd at UC Davis for an informative workshop for the nursery industry https://t.co/6k6pE7kYqy

[Johanna Del Castillo @Johadelcpp]

We have a post-doctoral research position opened in the Del Castillo lab. Check out details at: https://t.co/d9EyOY9EfB. Application deadline: March 21.

[Johanna Del Castillo @Johadelcpp]

@adrianabernalg I was thrilled to present the work I’m currently doing at my Alma mater! It was very exciting to see the students were engaged!

[Johanna Del Castillo @Johadelcpp]

The Del Castillo Lab is hiring a Lab Assistant, to help us during this spring season! If you are interested in conducting applied research to solve agricultural challenges in greenhouse and nursery grown crops you should apply! https://t.co/6tXPMx3tUl

[Saoimanu Sope @saoimanu]

Learn the 5 common mistakes w/ irrigation management in nurseries & greenhouses in UC Nursery & Floriculture Alliance's fall newsletter ft. articles on balancing water recycling & plant health, pH in liquid feed, @ISHB_update + more! https://t.co/r5XUYkcyhs
@ucanr @Johadelcpp

[Johanna Del Castillo @Johadelcpp]

The latest UCNFA Newsletter is out! I am excited to lead the publication of this newsletter with resources for the nursery industry. This issue covers irrigation management topics and some other aspects relevant to nursery production. Enjoy the read! https://t.co/E7GuuTT1Xs

[Johanna Del Castillo @Johadelcpp]

Excited to get to work on improving Botrytis management in California and Michigan! with @Tmiles_MSU and @RachelNaegele https://t.co/0BS1mxsOv7

[Johanna Del Castillo @Johadelcpp]

@Paradise_Mtian @PhytophthoraLab @KamounLab @dromius @francine_govers Can you send the link to register in the mailing list? Thanks!

[Johanna Del Castillo @Johadelcpp]

Thanks to @IPMWest for highlighting the work we are doing at characterizing Botrytis populations and evaluating their fungicide resistance aiming to develop improved IPM in CA https://t.co/IPqJ8aflMh

[Alejandro Rojas @alejorojas2]

A postdoctoral position is available again! Seeking an individual who can start ASAP in the US to work on Cotton foliar pathogen diagnostics/disease modeling https://t.co/OwCI9qYwmz The Previous candidate is no longer able to join. Questions [email protected] #PlantHealth2024

[Lina Quesada at The IR-4 Project @IR4_Director]

Another favorite #PlantHealth2024 event: Colombians in @plantdisease breakfast! 🇨🇴🇨🇴🇨🇴 #CienciaColombia @APS_OIP @cahuparo @MPrietoTorres @KellyJAvilaM @Carlomatrax @xocolatl_vrr @EpiPlantPath @NataliaPieros @CristianOlayaA @Johadelcpp @maherreraco

[California Department of Pesticide Regulation @CA_PesticideReg]

DPR awards $2.6M in grant funding to accelerate adoption of safe, effective and sustainable pest management in California. Learn more: https://t.co/eAuIHsfuYV

[Johanna Del Castillo @Johadelcpp]

With a new cohort of @ucnfa members we are revamping the UCNFA Newsletter! In this first issue since 2018, we introduce all new UCNFA members and invite all the greenhouse and nursery industry in California to get to know our new team. @ucanr https://t.co/ff2seYuWyK

[Johanna Del Castillo @Johadelcpp]

@mycozoa Felicitaciones Edgarin!! 👏🏼👏🏼👏🏼👏🏼

[Johanna Del Castillo @Johadelcpp]

@GittaCoaker I’m so sorry to hear that 🫤. I hope the recovery goes well!

[Johanna Del Castillo @Johadelcpp]

@PrettyPlantsDoc @plantdisease @OSUPlantPath @CFAES_OSU Congrats Francesca!! 🎉🎉💐