BAREFOOT BAY, Fl
|I HAVE BLACK COATING ON MY LIME TREE LEAVES. WHAT IS IT AND HOW CAN I GET RID OF IT? THE TREE IS HEALTHY OTHER THAN THE BLACK SUBSTANCE ON THE LEAVES AND IT IS BUDDING ALREADY.
|Answer from NGA
February 25, 2010
|The black film is likely a sooty mold that grows on the honeydew produced by aphids, mealybugs or scale insects. As these pests feed they excrete a sticky substance calley honeydew which turns black as it ages. To control the problem, you need to control the insects. Once you identify the pests you can choose an insect-specific pesticide. Once you get rid of the pests you can wash off the sticky coating or simply allow it to weather away.
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