Integrating novel copper formulations with
brassinosteroids for citrus canker management

Integrating novel copper formulations with brassinosteroids for citrus canker management

Report Date: 05/14/2025
Project: 22-003   Year: 2025
Category: Horticultural & Management
Author: Fernando Alferez
Sponsor: Citrus Research and Development Foundation

1. Please state project objectives and what work was done this quarter to address them:

The objectives of this project are:
Objective 1. Synthesize and optimize of neutral pH Cu formulation and develop quality control
protocols. Jar tests, comfirm that the preliminary Cu formulation is compatible with the Brassinosteroid product at the applied rate. Antimicrobial assesments show activity against the Canker pathogen at a similar concentration to the Industry Standard. Synthesis and material optimization is underway to improve the large scale synthesis feasibility and performance.

Objective 2. Assess the effect of Brs in combination with copper on canker incidence.
We could not start the field treatments in the field yet due to some delay in the product optimization. we expect to start in a couple of weeks. However, after taking the baseline measurements, we are regularly monitoring tree health parameters. This will allow to assess if there is any change in tree health dynamics as we start the treatments.

Objective 3. Effectively communicate results to stakeholders.

Nothing to report yet.

2. Please state what work is anticipated for next quarter:

The treatments will be delivered to the field and applied.

3. Please state budget status (underspend or overspend, and why):

Spending is on track. Personnel, including student and potsdoc, are onboard.


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