Friday, September 04, 2015

Home News Rose Rosette Disease confirmed in Florida

Rose Rosette Disease confirmed in Florida

Pest and disease, Industry News

The virus has been found in nursery settings in three counties.

| January 16, 2014

Nurseries in three Florida counties -- Gadsden, Alachua and Levy -- have been confirmed with rose rosette disease (RRD).

RRD causes a variety of odd-looking symptoms including peculiar red growth, excessive thorniness, elongated shoots, deformed blooms, pliable canes and often leads to the eventual death of the plant. The disease was first recognized in the 1940s but was never fully characterized. Based on some similarities to other better defined pathogens it's believed to be caused by a virus or plant specialized bacterium called a phytoplasma and spread by an eriophyid mite (Phyllocoptes fructiphylus). The disease is likely endemic to the continental U.S. and causes no visible symptoms in some native species of Rosa, such as R. setigera and R. palustris. Rosa multiflora is particularly susceptible to RRD.

In the Florida cases, the disease was found in production roses, as well as on a planted rose in a display garden, according to DPI officials. Inspectors have yet to find the mite vector anywhere in the state. That has led DPI officials to believe the disease spread to Florida on propagation material shipped in from other states. All of the infected plants in Florida belonged to the Knock Out series.

For more information on RRD, visit this page.

Top news

Fall prep in the nursery

Follow these steps to get ready for fall.

Tenax deer fencing

This fencing is made from a heavy duty UV-resistant polypropylene mesh that is virtually invisible, yet provides considerable protection.

A.M. Leonard expands greenhouse film capabilities

The investment doubles the company's ability to cut, rewind and ship overwintering and grow films.

Leonard Deluxe soil knife and sheath combo

New features improve multi-tasking knife.

Lawn tarp, 10x12

Heavy duty lawn tarp holds up to the toughest cleanup jobs.

x