Areca Palms are prone to mealybugs, scale and spider mites. Rinse your pruning tools in rubbing alcohol between cuts and after use so they don't spread scale nymphs, and dispose of the fronds in sealed plastic bags. All of these bugs will feed on the stems and foliage, causing damage to the plant, resulting in brown tips and leaves on your Areca Palm. Chewed scale armor that houses no insects is the work of the singular black lady beetle (Lindorus lophanthae), a primary false oleander scale predator. University of California Statewide Integrated Pest Management Program: Sago palm, Cycad—Cycas spp. It's now adapted to other areas of the world, including some regions of the United States, where winters are mild and usually frost-free. To get rid of scale insects prune and dispose of infested branches, twigs and leaves. Isolate infested plants as soon as scales are discovered. These insects are more vulnerable to sprays at that particular time in their life cycle than at other periods, and that time is generally late summer. NOTE: There are other different types of scale and some scale insects are host specific, such as rose scale, white palm scale, gum tree scale and tea scale (camellias). On a calm, clear early morning with no rain in the forecast, water your sagos and spray while the temperature is below 90 degrees Fahrenheit. All look similar at first glance but have a few subtle distinctions. Some types can infest many different plants. When scale numbers are low they may be rubbed or picked off of plants by hand. Finding scale insects on your sago palms (Cycas revoluta) is no laughing matter, so you want to learn how to treat scale on sago palms quickly. Among the available insecticides, the oil poses the least risk to bees and other beneficial insects. Don’t have a shell, instead they secrete a cotton-like or waxy substance over their bodies for protection 5. Algae, moss and lichens are the three main types of green growth that can appear on tree branches and trunks. The false oleander scale and the Asian cycad scale both feed on the sap of sago palms. See which your tree has below. Remove as many scales as possible with a cloth or toothbrush dipped in soapy water. Healthy, undamaged palm trees can often resist attacks by disease organisms. Those hosting cycad scales turn brown and wither. Both insects cause yellow spotting on the fronds' upper surfaces. Tip To help prevent an infestation of this insect, keep your tree pruned to make it a more open, airy and less dense environment, which the black scale dislikes. Another possibility is to use a garden hose to spray the scales off with a strong stream of water. Encourage organic resistance to scale by monitoring your plants' environment and … Soft brown scale occurs on ficus, scheffleras and other indoor plants. Use with a pump-style sprayer, and cover all plant surfaces thoroughly. Sooty mold may develop on the sticky substance. Apply epsom salts at 2 to 4 pounds per tree during the in-between months of regular fertilization. I had tried all that I knew to kill the scale—several kinds of oils, scale insecticides, flea and tick spray, and a strong stream of water. There are two main groups of tree scale—soft and armored (hard). Pruning may also treat early cycad scale infestations. 1. World rights reserved. Almost 40% of the Clemson Plant and Pest Diagnostic Clinic sample submissions for home landscapes during 2012 and 2013 were scale insect pests, and of these, almost 90% of the species were the more difficult to control armored scales. 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