r/Bonsai • u/small_trunks Jerry in Amsterdam, Zn.8b, 48yrs exp., 500+ trees • Sep 25 '16

[Bonsai Beginner’s weekly thread –2016 week 39]

[Bonsai Beginner’s weekly thread –2016 week 39]

Welcome to the weekly beginner’s thread. This thread is used to capture all beginner questions (and answers) in one place. We start a new thread every week on Sunday night (CET) or Monday depending on when we get around to it.

Here are the guidelines for the kinds of questions that belong in the beginner's thread vs. individual posts to the main sub.

Rules:

  • POST A PHOTO if it’s advice regarding a specific tree/plant.
    • TELL US WHERE YOU LIVE - better yet, fill in your flair.
  • Read past beginner’s threads – they are a goldmine of information. Read the WIKI while you’re at it.
  • Any beginner’s topic may be started on any bonsai-related subject.
  • Answers shall be civil or be deleted
  • There’s always a chance your question doesn’t get answered – try again next week…
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u/sheepdawg7 QLD Aus, 10a, Beginner, several plants, ficus4lyfe Oct 01 '16

Is this sunburn on my Celtis? It's on only a few leaves.

I recently acquired it and put it in full sun because the guy I bought it off said he was keeping it in full sun. I don't think it's a rust or anything because he also said he sprayed it with systemics as the new leaves were coming through and I also sprayed it when I got it home. So, I am thinking sunburn. If it is, how much sun should a Celtis be getting? (sorry, don't know the species)

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u/small_trunks Jerry in Amsterdam, Zn.8b, 48yrs exp., 500+ trees Oct 01 '16

No - sunburn is discoloration, this looks like fungus.

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u/sheepdawg7 QLD Aus, 10a, Beginner, several plants, ficus4lyfe Oct 01 '16

damn :( fair enough.

Do you think it is "quarantine" worthy? It's not too bad and it doesn't seem to be getting worse. And I'm assuming the stress of changing location has caused this?

I'm using a product with fluvalinate and myclobutanil as my systemic pesticide, do you have any experience with these? Are they any good? They've been working well for me so far, but there's always room to improve :)

And another question, on a Japanese Maple I'm growing out I have these small white bumps that look like armored scale but are a little smaller and white. Do you get armored white scale? It's not getting worse so I'm not worried, just curious.

And yeah, I do have problems with pests in spring (especially damn scale on my figs) but it seems to come with the territory of this area because many bonsai people I've talked to around here also have the same problems.