Disease on Tree - Knowledgebase Question

Port St. Lucie, Fl
Question by sharonlbanks
July 26, 2009
I have a Angel Trumpet tree and two says ago saw it was losing all its leaves and has nodules on the branches with a brown looking adhesion that looks like a bug, it also has numerous clumps of white powdery mounds on the branches. I sprayed it with your Garden safe Fungicide. Will this cure it or should I do it more often or with another pest control. What is this pest anyhow?
Thank you.


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Answer from NGA
July 26, 2009

0

Rather than a fungal disease, I think your trumpet tree has a population of mealybugs or cottony scale. Scale insects look like bumps but you can peel them off with your fingernail or you can squish them and they will have a fluid inside. If this is what you can do, the bumps are scale insects. The powdery mounds can be either mealy bugs or cottony scale insects. Both can be scraped off or you can suffocate them with an application of summer weight horticultural oil. There are other insecticides on the market that you can use. Just look for control products that list scale insects and mealy bugs and apply it according to label directions. Best wishes with your trumpet tree.

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