Insecticidal soap can also be sprayed on houseplants to kill scales. Asked August 15, 2017, 1:37 PM EDT. 1. Cary, NC - Gloomy Scale - (photo credit) Our friends at Leapfrog Landcare recently shared an interesting article about Gloomy Scale that is valuable information to share here with our Garden Supply Co. readers, too. Oils are physical poisons, meaning that they act on pests physically rather than biochemically, like most pesticides. Look for small, white or brown insects clinging to leaf petioles -- the stalks attaching the leaf blades to the stem -- and lining the twigs and stems. Answer: Red Maples are very sensitive to oils, soaps and other insecticides and for this reason we do not make product recommendations for this ty pe of tree. They do not secrete honeydew. Gloomy Scale is an armored “scale insect” that attaches itself to the bark and sucks out nutrients, water, and sugars from the tree. It is an armored scale which secretes a … Contact a certified arborist for consultation and/or treatment. Is Insecticidal Soap Concentrate safe to use on Japanese Red Maples? I have an odd admiration for that little bug that is wreaking havoc on Maple trees. In heavy infestations the tree will suffer from a lack of nutrition. Armored scale like obscure and gloomy scale are especially difficult to treat during the summer months, so the dormant season when leaves are off the trees is an excellent time to treat with a dormant oil. It’s Gloomy Scale time!!! Verify that it is scale you are dealing with. Mix about 5 tablespoons of insecticidal soap or a very mild dish soap into 1 gallon (3.8 L) of water. It may also be found on other species including sweetgum, holly, and mulberry. Look for gray bumps or white dots on trunks or limbs. In most cases, they are able to move short distances (but rarely do) and produce copious amounts of honeydew. The waxy cover of soft scales is not separate from the insect’s body and cannot be removed. Many armored scales are serious pests of ornamental shrubs, trees, groundcovers and turfgrasses in South Carolina. Looking for either systemic insecticide (such as Safari) or horticultural oil to treat gloomy scale on red maples. The hard scale lives and feeds under this spherical armor and does not move about the plant. Boisduval scale (Diaspsis doisduvalii) Gloomy scale (Melanaspis tenebricosa) Obscure scale (Melanaspsis obscura) Soft scales (Hemiptera: Coccidae) differ from armored scales in a few important ways. Oh, I know most folks are thinking since we do treatments for Gloomy Scale that I’m excited about it because I make money off of it. Is Acephate Pro 75 SP Insecticide a good treatment for gloomy scale? No, it’s not that. treatment for gloomy scale on red maples; Can Monterrey Once a Year be used to treat scale on sago palms? Try using insecticidal soap. Water your trees 2-3 times per month during dry conditions. Gloomy Scale is a tiny bug that infects the healthy tissue of maple trees, especially the soft maples such as boxelder, red maple and silver maple. The pest’s scientific name is Melanaspis tenebricosa. Pour the soap into a spray bottle and spray the plant, including the undersides of the leaves and stems, until the soap solution begins to drip. Soft – Secrete a waxy film (up to 1/2 inch long) that is part of the body. Although I sure do appreciate the fact that I can make money doing it. Gloomy Scale. Gloomy scale (Melanaspis tenebricosus) is a par-ticularly widespread and damaging scale found primarily on red, silver and Freeman maples as well as boxelders (Figure 1). treatment for gloomy scale on red maples. 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