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Citrus Research and Development Foundation

In 2009, the Citrus Research and Development Foundation, Inc. (CRDF) was formed to coordinate citrus research funding in the face of huanglongbing (HLB, also known as “citrus greening”). While it addresses the full array of citrus research needs, CRDF has focused on HLB because it represents an existential threat to the Florida citrus industry.
CRDF is soliciting bids to inoculate citrus trees with ReMedium TI through TJ BioTech Flexinject devices at three locations – two on the ridge and one in Southwest Florida. Each site is home to a CRDF randomized-design rootstock trial. The trees are seven years old.

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Bid solicitation to inoculate trees

CRDF is soliciting bids to inoculate citrus trees with ReMedium TI through TJ BioTech Flexinject devices. There are three locations – two on the ridge and one in Southwest Florida. Each site is home to a CRDF randomized-design rootstock trial. The trees are seven years old. The inoculation work is the subject of a scientific trial. The work and approximate number of injections are: Site 1: This Ridge site is near to Babson Park. Approximately 4,320 trees will be injected. Site 2: This Ridge site is just east of U.S. 27 in the Venus area. Approximately 3,600 trees will be injected. Site 3: This Southwest Florida site is near Felda. Approximately 3,150 trees will be injected. Total: The total number of trees to be injected is approximately 11,070. Please submit bids as a per tree injection cost, which would include the cost of labor. CRDF will pay for the material which is to be injected. All questions and Bids should be submitted to catp@citrusrdf.org by 5:00 p.m. Easten Time on Friday, April 7, 2023. LEARN MORE »
RFP-Application of OTC in Combination with Other Antimicrobials

Much of the reduction in citrus production in Florida over the last dozen years is because of the disease Huanglongbing (HLB), otherwise known as citrus greening. To combat the disease, insertion of the antimicrobial oxytetracycline (OTC) through a systemic delivery device (injection) was recently approved by state regulators and a label was issued for Florida citrus. It is believed that this therapy will be effective for reduction of HLB pathogen titer, recovery of HLB tree health, and increase in fruit quality and yield. Several research questions have arisen in relation to this therapy. First, are there other antimicrobials with demonstrated activity against the Liberibacter pathogen of ACP vector that can be used in conjunction with OTC being delivered in this fashion to achieve operational synergies and reduce grower costs? Second, do these other antimicrobials - when used by themselves - work as well or better than OTC? This RFP intends to answer these questions. LEARN MORE »
Gamechanger Pre-proposals Invited to Submit Full Proposals:

The following three (3) Gamechanger Pre-proposals have been invited to submit a full proposal: Deng, Zhanao, UF/IFAS GREC, (#23-001) 'Evaluating Novel Gene-edited Duncan Grapefruit Mutants for Resistance to Huanglongbing (HLB).' .Qureshi, Jawwad, UF/IFAS, (#23-002) 'Maximizing HLB Suppression and Grove Sustainability Through Oxytetracycline Trunk Injections Integrated with Established Crop Protection and Horticultural Strategies.' .Wang, Nian, UF/IFAS CREC, (#23-003) 'Optimization of the non-transgenic citrus genome editing technology to generate HLB resistant/tolerant citrus cultivars.' Detailed instructions for completing your Full Proposal are outlined in the Gamechangers RFP-Announcement . Full proposals are due by the 5:00 pm EST on Monday, April 10, 2023. Thank you to all who submitted a pre-proposal in response to this RFP. LEARN MORE »