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1-Oct-2002
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#1 |
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bonsaiTALK Neophyte
Join Date: Sep-2002
Posts: 1
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Just Wondering
I bought my fukien tea tree at the beginning of the summer, and it has been doing well. Now, though, it has developed some brown bumps on the branches and stems that peel off. Are these some kind of pest or does the tree normally do this? The tree has also has a lot of sap coming out of its branches.
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Just Wondering |
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1-Oct-2002
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#2 |
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Tips:5¢ Advice:Free
 
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Hi simchah3,
Please check the ***FAQ*** under pests & disease for SCALE Regards, Matt
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23-Oct-2002
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#3 |
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bonsaiTALK Expert
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I agree with Matt. That could be scale. Is it sticky where the bumps are and are you finding sticky patches on other areas of the tree? That would be what is called honeydew. Scale and aphids excrete that as they go............
Neem could work or just some light horticultural oil might be worth a try. If the tree isn't too big you can just rub them off with a swab dipped in alcohol but you have to keep at it.......... Moni |
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23-Oct-2002
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#4 |
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bonsaiTALK Adept
 
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Fukien Teas are fairly sensitive to chemicals. I have experienced a big problem with mealy bugs on a group of F. Teas at the nursery. Neem oil was not successful in controling them. I did read an article on Bonsai Today that recommended a spray containing "pyrethrins" for mealy bugs and certain other insects. I found that Fertilome makes a product called "Red Spider & Mite Spray" containing pyrethrins and it successfully controlled the mealy bugs without hurting the Fukien Teas.
The label on the spray lists these other insects that it can treat: Red Spider Mites, Two-Spotted Spider Mites, Whiteflies, Mealy Bugs, Aphids, Thrips, and Scale Crawlers. The question is, are Scale Crawlers the same as Scale that the previous posts are talking about. If someone can answer that question you might have a solution to the problem. BTW always follow the directions on the bottle. Ed |
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25-Oct-2002
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#5 |
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bonsaiTALK Expert
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Yes, Ed. Scale crawlers are scale. And if the label does not distinguish between different kinds of scale, i.e. hard or soft shell, then it should work on all of them. Just because Neem didn't work on mealy bugs doesn't mean it will not work on scale. But pyrethrums will work, too. The problem with pyrethrums and scale is that the insecticide will only work on the immature stage of the insect. By immature I mean that there is no shell yet protecting them. This is the stage where the insect is the most mobile. Once they settle down on a juicy spot they form a shell that most insecticides cannot get through. The different oils work by smothering the insect even when it is protected by the shell. The Fukiens being as sensitive as they are, necessitate testing anything you use on a small area first to make sure there is no damage.
By the way, the immature stage of scale is very hard to spot because at that stage they are almost transparent. Moni |
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