1. Wed. June 26. FTGA-UF CEU Day. Register at: On-line registration: www.ftga.org See details below.
2. In March, the UF TREC Homestead PDC (Plant Disease Clinc) , confirmed samples from a golf club in Collier County had the St. Augustinegrass Sugarcane Mosaic Viruses Disease, now called LVN (lethal viral necrosis).

3. A new, tiny lychee mite is causing galling problems which resemble a fungal disease.

1. Register early and save! Prices go up on Saturday June 15!
Class will be held at UF|IFAS Extension Office 14700 Immokalee Rd., Naples. Register here: https://www.ftga.org/page/CEURoundUp

Lethal Viral Necrosis (LVN) of Floratam St. Augustinegrass (formerly Sugarcane Mosaic Virus – SCMV) was first confirmed in Palm Beach County in western Boynton Beach and Wellington in late 2014.

It is now appearing through-out southern Florida. The disease is a complex of two
viruses. One of the viruses was known on bermudagrass and likely arrived in Florida on corn. Sugarcane mosaic virus symptoms were seen on St. Augustinegrass lining ditch banks in sugarcane.
For more, see: https://tinyurl.com/y5g8z6nt

and also this blog: https://tinyurl.com/y42ubz8w

3/ A new lychee pest a tiny mite, is creating quarantine problems, see:
in Lee and possibly Collier counties. It has been reported in 12 south Florida counties. See more info here: https://tinyurl.com/y49fp4oo

It has been reported as causing 80% crop reduction in some countries, but doesn’t seem to be a big deal in Hawaii. Burn or freeze foliage & fruit with the brown scabby growth, called an erinium, caused by the mite’s feeding activity. Do not take fruit to farmer’s markets nor purchase fruit with these symptoms. In Collier County call Scott Krueger with Division Plant Industries to report infested trees, (239) 593-2773 Office.

Doug Caldwell
“Dr. Dougbug”

Doug is a landscape entomologist, FNGLA Certified Horticulturist and ISA Certified Arborist. He has been the Commercial Landscape Horticulture Extension Educator in Collier County, University of Florida since January 2001.

The Extension Service is an off-campus branch of the University of Florida, Institute of the Food and Agricultural Sciences [IFAS] and a department of the Public Services Division of Collier County government.

Extension programs are open to all persons without regard to race, color, creed, sex, handicap or national origin.


Posted: June 19, 2019

Category: Pests & Disease
Tags: Collier County, Florida, Fungal Diseases, Lee County, Lethal Viral Necrosis, Lychee, Mite, St. Augustinegrass, Sugarcane Mosaic Virus

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