This pest has been found in several locations in Lee County, including lychee groves, residential properties and plant nurseries. Most of the common lychee tree diseases are caused by fungal pathogens. NO LYCHEE FRUIT OR PLANT PARTS CAN BE MOVED OUT OF LEE COUNTY UNLESS THE FOLLOWING CONDITIONS ARE MET: No lychee fruit or plant parts can be moved out of Lee County to other locations in Florida. Anthracnose (Colletotrichum gloeosporioides) is the major disease attacking fruit. Diseases of lychee tree include anthracnose, root rot and red algae. You can also spray affected lychee trees with Bt (Bacillus thuringiensis), a naturally occurring bacteria. As the lesions grow, they will girdle the limb, causing damage to the vascular system. After selecting a keyword you will be taken to our online payment center where you will be required to log in before entering any payments. Bird pests of the lychee are lorikeets and fruit bats, and they can decimate an orchard in three days, so it's recommended that fruiting trees are netted. When temperatures drop below 32 F. (0 C.), lychee tree foliage may turn yellow or brown, and wilt or drop. Unchecked, an infestation of mites can severely damage the tree, fruit and flowers. External links are made available for the convenience of the internet user. If it has been unusually cold, it could just be winter damage. ): Spray beetles with a permethrin-based insecticide. Occasionally, mushroom root rot (Clitocybe tabescens) kills lychee trees, often in land where oaks (Quercus virginiana) were previously grown. Find more gardening information on Gardening Know How: Keep up to date with all that's happening in and around the garden. It causes oval or irregular shaped, sunken lesions on the branches, which may cause the bark to crack open. Happy holidays from all of us at Gardening Know How. Happy holidays from all of us at Gardening Know How. Let’s take a closer look at common lychee tree diseases: Anthracnose – This fungal disease is caused by the fungal pathogen Colletotrichum loeosporioides. Algal leaf spot is also known as green scurf or red leaf spot. How to Avoid Most Lychee Issues If winter in a location is too cold for lychee trees, they may also display symptoms that resemble disease. Symptoms of mushroom root rot mostly take place under the soil, until the overall wilting and sudden death of the tree occurs. The symptoms include greenish-gray to rust-red, watery, irregularly shaped lesions on the foliage and new shoots of lychee trees. Lychee is a beautiful tree with a rounded canopy and deep green foliage. A B C D E F G H I J K L M N O P Q R S T U V W X Y Z, Division of Plant Industry HelplineContact us Monday-Friday, 8 a.m.-5 p.m. EST1-888-397-1517 (352) 395-4600 (Outside North America)DPIHelpline@FDACS.gov. This disease almost always goes unnoticed until it has killed the tree by rotting its roots away. Pink Limb Blight – This fungal disease is caused by the pathogen Erythricium salmonicolor. With our brand new eBook, featuring our favorite DIY projects for the whole family, we really wanted to create a way to not only show our appreciation for the growing Gardening Know How community, but also unite our community to help every one of our neighbors in need during these unprecedented times. Lychee fruit is harvested and packed in Lee County for shipment outside of Florida only. ): You can normally spray mites with Neem oil or insecticidal soap to eradicate them. Why Is My Lychee Turning Brown – What Do Brown Lychee Leaves Mean, What To Do With Lychees: Learn How To Use Lychee Fruits, How To Manage Mango Disease: Tips For Treating A Sick Mango Tree, Olive Preservation Guide: How Do You Brine Olives, Thanksgiving Flower Decor: DIY Floral Thanksgiving Arrangements, Garden Thanksgiving – Reasons To Be A Thankful Gardener, Nasturtiums As Pest Control – Planting Nasturtiums For Pest Management, Reverend Morrow’s Tomato Plant: Caring For Reverend Morrow’s Heirloom Tomatoes, Common Pitaya Problems: Dragon Fruit Pests And Diseases, Ghost Cherry Tomato Care – Tips For Growing Ghost Cherry Plants, The Bountiful Garden: Bringing The Garden To Thanksgiving, Overwintering Containers And End Of Season Cleanup, Must Have Winter Shrubs – Top 7 Shrubs For Winter Interest, Enclosed Porch Garden – Indoor Gardening On The Porch. Although this pest is too small to see without a microscope, its presence can be detected on the surface of the lychee leaves. Like any plant, lychee trees can experience certain disease problems. Gleosporium sp. Symptoms are pink to white lesions on and under the tree’s bark. Many of the fungal diseases that lychee trees can develop are caused by overly wet, warm and humid winter conditions. Maintain a barrier of at least 2 or 3 feet (1 m.) between lychee trees and lawn grass. Lychee Tree Diseases Mushroom Root Rot. All Florida Department of Agriculture and Consumer Services offices are currently closed to the public until further notice.