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infestations, scrape off the scales by hand and dispose of them. For heavy infestations, prune out those branches that are badly affected. Spray with a plant oil wash in winter.euonymusmid-July, early September, winterMore common garden pestsWhiteflyLeaf miner

.virtually anything from tomatoes to honeysuckleearly spring to autumnDealing with other garden pestsWoolly aphidsWhiteflyPear leaf blister miteLeafhopper

This fungal problem results in rounded spots on the leaves. Although it's unsightly, leaf spot is only a significant problem on poorly growing or unhealthy plants, which might end up dropping a substantial number of leaves.A fungal attack causes

, just as the new foliage emerges, as a preventative measure.shrubs, roses spring, summerCommon problems affecting trees and shrubsAcer tar spotLeaf miner flyReversionPowdery mildew