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Joined: Sun Mar 09, 2008 11:53 pm
Location: Oregon, USA

Bonsai Insects

I have a Bonsai evergreen juniper that is at least 35 years old it has always been outside, this year the needles on a portion of the tree have
turned brown and look pretty much dead. I did discover that it has scale which I sprayed with and oil spray and it seemed to take of the problem for a short time, but they returned. Checked the soil and found small yellow, what look like eggs. I removed all of the soil down to the roots and removed all the "eggs" and replaced with new fresh soil, watered with a liquid feed and now I'm wondering if I need to treat the soil.
Any suggestions ?

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Posts: 5122
Joined: Wed Jul 05, 2006 4:17 am
Location: Western PA USDA Zone 6A


Scale are very tenacious and whatever course of action you take will have to be repeated in order control successive generations.
Is this tree new to you? I ask because if is the "yellow eggs" might have been slow release fertilizer.



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