Tag Archive: disease

Be on the Lookout for Rose Crown Gall

For gardeners, rose enthusiasts and rosarians, each of the many rose diseases is as important as the others. But we can say for sure Crown Gall is one of the most unsightly of the many rose diseases that can been seen currently. The disease got this name from the large tumor-like swellings (galls) that typically …

Continue reading »

Permanent link to this article: http://nwdistrict.ifas.ufl.edu/hort/2017/11/06/be-on-the-lookout-for-rose-crown-gall/

Recent Weather Fueling Fungi

Florida’s panhandle has received quite a bit of rain this summer. In the last three months, depending on the location, approximately 15 to 35 inches of rain have come down, with the western panhandle on the higher end of that range. In addition to the rain, we all know how hot it has been with …

Continue reading »

Permanent link to this article: http://nwdistrict.ifas.ufl.edu/hort/2017/08/01/recent-weather-fueling-fungi/

Algal Leaf Spot Common on Magnolias and Camellias

Algal leaf spot, also known as green scurf, is commonly found on thick-leaved, evergreen trees and shrubs such as magnolias and camellias.  It is in the genus Cephaleuros and happens to be one of the only plant parasitic algae found in the United States.  Although commonly found on magnolias and camellias, algal leaf spot has a …

Continue reading »

Permanent link to this article: http://nwdistrict.ifas.ufl.edu/hort/2017/06/29/algal-leaf-spot-common-on-magnolias-and-camellias/

Workshop on New and Re-emerging Rose Diseases and Pests, July 11, 1-5 pm.

Come to this free workshop to learn about the latest results of University of Florida and national research on roses. Receive hands-on training on symptoms and management of rose rosette disease, rose mosaic disease, crown gall, and rose pests.   FL Pesticide CEUs, FNGLA CEUs and GA Pesticide CEUs have been applied for!   This …

Continue reading »

Permanent link to this article: http://nwdistrict.ifas.ufl.edu/hort/2017/06/22/workshop-on-new-and-re-emerging-rose-diseases-and-pests-july-11-1-5-pm/

Citrus Greening (HLB) A Troublesome Bacterial Pathogen

If we look at the big picture when it comes to invasive species, some of the smallest organisms on the planet should pop right into focus. A microscopic bacterium named Candidatus Liberibacter asiaticus, the cause of Citrus Greening (HLB), has devastated the citrus industry worldwide. This tiny creature lives and multiplies within the phloem tissue …

Continue reading »

Permanent link to this article: http://nwdistrict.ifas.ufl.edu/hort/2017/03/02/citrus-greening-hlb-a-troublesome-bacterial-pathogen/

Fighting Fireblight

Gardeners in Northwest Florida were blessed this spring with conditions conducive to great gardening, mild weather and plenty of rain. However, with those pleasant conditions has come an unusually high occurrence of Fireblight. Cases of Fireblight have been brought into our office almost daily this spring/early summer! Fireblight is a difficult to control, rapidly-spreading disease …

Continue reading »

Permanent link to this article: http://nwdistrict.ifas.ufl.edu/hort/2016/06/22/fighting-fireblight/

What’s Wrong with My Camellia Leaves?

Recently, a home gardener brought in some strange looking new leaves on his camellia. The youngest leaves were thick and fleshy and looked more characteristic of a succulent type plant than a camellia. What’s wrong with these leaves? The culprit is a fungus Exobasidium camelliae whose spores are carried by the wind in search of …

Continue reading »

Permanent link to this article: http://nwdistrict.ifas.ufl.edu/hort/2016/04/21/whats-wrong-with-my-camellia-leaves/

Why Do My Azaleas Have Weird Growths?

Fleshy distortions are appearing on some azaleas this time of year. What is responsible for this? A fungus, Exobasidium vaccinia, likes our cool, wet spring weather and infects azalea leaves and flower petals. This disease likes a cool, wet, shady and protected environment. The infection causes the plant to form large, fleshy, distorted tissues known …

Continue reading »

Permanent link to this article: http://nwdistrict.ifas.ufl.edu/hort/2015/04/28/why-do-my-azaleas-have-weird-growths/

Importance of Following Pesticide Labels

When you contact your local extension office for pest control recommendations you will likely hear “follow the label” over and over again. So, why do we emphasize the pesticide label so strongly when talking to both homeowners and landscape professionals? There are many important reasons why you should always read and follow label instructions.  The …

Continue reading »

Permanent link to this article: http://nwdistrict.ifas.ufl.edu/hort/2013/07/22/importance-of-following-pesticide-labels/

What’s Killing My Magnolia Leaves?

We love our native magnolias in part because they are tough, easy to care for trees. The mainstay of southern gardens, they grace us with attractive thick, waxy leaves year round and sublimely fragrant and graceful blooms. However, this past spring brought conditions that encouraged a fungal leaf disease known as anthracnose, most noticeably on …

Continue reading »

Permanent link to this article: http://nwdistrict.ifas.ufl.edu/hort/2013/06/21/whats-killing-my-magnolia-leaves/