Photo: P.M. Shrewsbury, University of Maryland. Several natural enemies, including parasitic wasps, predatory assassin bugs, lacewing larvae, lady beetles, jumping spiders, pirate bugs, and mites attack lace bugs. Treatments: It’s best to eliminate Azalea lace bugs during spring & summer so that the larvae do not overwinter in the leaves of the shrub and return next year. Most pest species are about three-sixteenths of an inch in length when mature. To avoid treatment, taking proper care of your azalea can make all the difference. Lace bugs feed on azaleas by piercing the plant's leaves with their mouths to drain them of chlorophyll and other nutrients. Lightly irrigate every two weeks through our dry months, concentrating on the roots, not the leaves. This feeding causes small bleached spots to form on the top surface of the leaf and is referred to as stippling. Lace bugs feed with piercing-sucking mouthparts during both the nymph and adult life stages. However, these products must directly coat the lace bugs’ exoskeleton to suffocate them. To relieve stress: Prune plants to increase air circulation through the branches and ease spray application. Sometimes you will see the actual adults. For example, look out for azalea lace bug on the leaves. Lace bugs thrive in the sunshine. At least 17 species of lace bugs cause damage to ornamental trees and shrubs in the United States. Asked December 1, 2018, 1:08 PM EST. For more information, see Attracting Beneficial Insects. Lace Bug. Apply these types of products directly and carefully to the lasce bug infestation. All rights reserved. Recommended insecticides to control the Rhododendron lace bug are the same as for the azalea lace bug. Clemson University Cooperative Extension Service offers its programs to people of all ages, regardless of race, color, gender, religion, national origin, disability, political beliefs, sexual orientation, gender identity, marital or family status and is an equal opportunity employer. Products with the active ingredients organophosphate (malathion) and pyrethroid (bifenthrin and permethrin) are very effective in controlling lace bugs. Keeping Pesky Insects out of the Flower Bed. Prolonged high populations of lace bugs may cause premature drop of some leaves and a modest reduction in plant growth rate. Sometimes you will catch one of them under leaves when you take a look. Azalea lace bug nymph.Tracy Wooten, University of Delaware, Bugwood.org. Hosing the azalea shrub off with a strong jet of water can help control a light infestation. We welcome your comments and This is usually the easiest method to achieve control. Are your azalea plants not looking its best? Therefore, planting a wide variety of species in the landscape prevents the insect from spreading. This can knock the pests of the plant and disorient them enough to … For season-long prevention and control of lace bugs and other leaf sucking or chewing insects a systemic insecticide drench containing Imidacloprid can be applied around the roots of the plants in late winter or early spring, when the azalea is in … Another method of natural control of lace bugs is to take advantage of the fact that lace bugs are more likely to feed on plants in hot, dry and sunny environments. If you have a more advanced problem with lace bugs, there are some chemical control options. for azalea lace bug (Smith-Fiola). Keep your azalea watered and properly fertilized. If you only notice a few lace bugs … Sevin is a widely known insecticide for treatment of lace bugs, as is Bayer Advanced and Spectricide for rose and flower insects. Azalea lacebug symptoms. If so, what would be a good treatment to address this? There are approximately 140 North American species of lace bugs. Unless you spot one of the actual bugs, you'll likely see egg pouches underneath the newer leaves, and spots along where the middle vein meets with the other periphery veins. The first method to try is to spray the plant down with a sprayer on the hose. Shiny droplets on the underside of leaves is another telltale sign that lace bugs have been present. Unfortunately azaleas have a reputation of being prone to pests and diseases. Most homeowners are familiar with the Azalea lace bug, a tiny, clear winged insect that feeds by sucking on the underside of azalea leaves. However, these products must directly coat the lace bugs’ exoskeleton to suffocate them. All neonicotinoid treatments significantly reduced azalea lace bugs by 60 days compared to the untreated control. White or yellow spots or marks on the upper suface of the leaves. Questions of a Do It Yourself nature should be Copyright © 2020 Clemson UniversityClemson Cooperative Extension | 103 Barre Hall Clemson, SC 29634864-986-4310 | Contact UsHGIC@clemson.edu, College of Agriculture, Forestry and Life Sciences, How to Tell the Difference Between Goldenrod and Ragweed, Centipedegrass Yearly Maintenance Program. Azalea lace bugs can be a very destructive pest in home landscapes. Damage may give the foliage a chlorotic bleached appearance. Choosing the right planting site and maintaining proper fertility based on recommendations provided by a soil test can go a long way in preventing future problems. Symptoms start on the underneath of the leaves, but unless you check them regularly, you won't notice until they've progressed to the upper part of the foliage. Live and feed on the upper suface of the azalea serviceberry leaves, look out for azalea lace eggs! Lacy outgrowths on their thorax, and use it for non-commercial use to! 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