See what Citrus Achievement Award winner Ed Pines has to say about the ins and outs of CUPS.


Florida’s citrus industry is under attack by citrus greening and the Asian citrus psyllids that that spread the bacteria that causes citrus greening. Citrus Under Protective Screen—called CUPS—is one innovation that a few citrus growers are trying out in order to keep the industry afloat. Citrus Achievement Award winner Ed Pines is one grower who is utilizing CUPS. As part of a series, he has participated in Q&As with Growing Produce; this third installment explores the details of CUPS. See his answers below.


Q: What pests can be excluded from groves by planting citrus under protective screen (CUPS)?

Pines: “Pest exclusion is one of the primary purposes of the CUPS system. The 50-mesh screen we use will keep the Asian citrus psyllid from entering the structure, which keeps HLB from infecting the planting. Since planting in August 2016, no psyllid has been found in the structures.
The screen also keeps out other pests like Diaprepes (root weevils) and leafminers. The structure acts a windbreak to reduce the potential of canker spores entering.

Brazil has citrus variegated chlorosis (CVC) and Florida already has the sharpshooter, which is the vector of the disease. It is probably only a matter of time before we see CVC here. The structure will exclude the sharpshooter, and other potential invasive pests in the future.

Thrips and mites can penetrate the structure, but we don’t have any problem managing them with standard practices. Outside of pest control, CUPS provides some cold protection and will reduce sunburn, wind, and hail damage.”

Q: How did you learn more about building CUPS structures?

Pines: “These types of structures are used extensively all over the world, so it is not a new practice, even though it is new for Florida citrus. We visited Spain and Costa Rica to see the how the structures are built there.

My structures and those that are built by our company, EIP Citrus, are professionally engineered and designed. My structures are inland, but they are insured to withstand winds of 80 mph. And, they are insurable because of the engineered design.”

Griffin Fertilizer is committed to helping both growers and ranchers make sound agronomic and economic decisions in order to maximize the health of their grove and pasture. As a full-service custom dry & liquid fertilizer blender and crop protection product distributor, we will continue our mission to further advance Florida agriculture. For questions or concerns about your farm or pasture, contact us and one of our team will be in touch.