Talk of The Villages Florida - View Single Post - Magnolia Tree Scale
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Old 07-04-2011, 08:07 PM
Oren L Miller Oren L Miller is offline
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Default http://www.treehelp.com/trees/magnolia/magnolia-scale.asp

Summer and Dormant Oils - Horticultural oils (often called summer oils) at 1.5-2.0% applied after the crawlers have settled in late August can be very effective in reducing the scale population. Be sure to thoroughly wet down the stems and leaves. Dormant oils can be applied in October to November and again in March to kill the overwintering nymphs located on the stems. Be sure to check the spring buds as some damage may be caused on the flower buds if they have begun to swell.