New Fungal Disease Finds Its Way To Florida

USDA Animal and Plant Health Inspection Service’s (APHIS) Molecular Diagnostics Laboratory (MDL) has confirmed Elsinoë australis, or sweet orange scab (SOS) in Florida. First from samples taken within this past month from a grapefruit tree in a campground in Lakeland (Polk County) and from a bitter orange tree at a residence in Weston (Broward County). Subsequently, MDL confirmed SOS from a sample taken from a tangerine tree in a residential area of Sarasota County.

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SOS is a fungal disease of citrus that results in unsightly, scab-like lesions developing on fruit rinds. Fruit is not a vector of the disease, so fruit movement should not be an issue. The pathogen can be spread long distances within infected nursery stock and other plant parts.

To date, there have been no detections in commercial groves. In response to these finds, APHIS issued Emergency Action Notifications to the property owners in Polk and Sarasota Counties requiring that fruit, leaves, branches, and other plant parts remain on the property. The bitter orange tree in Broward County has been removed.

APHIS is working closely with the Florida Department of Agriculture to determine the extent of the infestation.

In addition, earlier this month, SOS was confirmed in a sample taken from a tangerine grove in Maricopa County, AZ. The first U.S. detections of the disease were confirmed by APHIS in Texas, Louisiana, and Mississippi during this past summer. In response to these detections, APHIS issued a Federal Order on Dec. 22, 2010, establishing quarantine areas for the entire states of Louisiana, Mississippi, and Texas. APHIS is revising the Federal Order to reflect the detections in Arizona and Florida.

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Source: Source: North American Plant Protection Organization’s Phytosanitary Alert System

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Avatar for Anonymous Anonymous says:

I think that this is spread more than is known.I live in Pinellas County and all of my citrus trees seem to have this or some other spot disease. This year is real bad other years were a few now all fruits.

Avatar for Anonymous Anonymous says:

Yet again, another example of the folly of our politicians and regulatory bureaucrats in Washington, D.C. Perhaps DC stands for ‘Disaster Corps’, because that is the effect on agriculture of their “let all pathogens into the country” policy. Or maybe ‘Dementia Cacotopia’, or ‘Derriere Capel’? Sadly, they all fit. It is bad enough that all the fruit and veggies are being taken out now, that same open door policy will eventually get corn, wheat, and soybeans…then DC will mean “Death Certificate” as the food riots break out, and worse…

Avatar for Anonymous Anonymous says:

We recently had a large propagator of blueberry plants tell us that they have reduced the number of products used in growing blueberry plants from 7 to 2. Those 2 are fertilizer & Quantum Growth. No fungal diseases were experienced. Recent their consultant advised them to apply a fungicide three times during the growing season. Instead they used Quantum Growth and have had no fungal problems. I suggest you test the product to both prevent and cure SOS.

Avatar for Anonymous Anonymous says:

I confirm my statements Douglas Speed

Avatar for Anonymous Anonymous says:

Where’s IFAS?

Avatar for Anonymous Anonymous says:

I think that this is spread more than is known.I live in Pinellas County and all of my citrus trees seem to have this or some other spot disease. This year is real bad other years were a few now all fruits.

Avatar for Anonymous Anonymous says:

Yet again, another example of the folly of our politicians and regulatory bureaucrats in Washington, D.C. Perhaps DC stands for ‘Disaster Corps’, because that is the effect on agriculture of their “let all pathogens into the country” policy. Or maybe ‘Dementia Cacotopia’, or ‘Derriere Capel’? Sadly, they all fit. It is bad enough that all the fruit and veggies are being taken out now, that same open door policy will eventually get corn, wheat, and soybeans…then DC will mean “Death Certificate” as the food riots break out, and worse…

Avatar for Anonymous Anonymous says:

We recently had a large propagator of blueberry plants tell us that they have reduced the number of products used in growing blueberry plants from 7 to 2. Those 2 are fertilizer & Quantum Growth. No fungal diseases were experienced. Recent their consultant advised them to apply a fungicide three times during the growing season. Instead they used Quantum Growth and have had no fungal problems. I suggest you test the product to both prevent and cure SOS.

Avatar for Anonymous Anonymous says:

I confirm my statements Douglas Speed

Avatar for Anonymous Anonymous says:

Where’s IFAS?

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