Bonsai Study Group Forum

Species Specific => Ponderosa Pine Bonsai Discussion => Topic started by: Treebeard55 on June 02, 2011, 05:17 PM

Title: Bugs in the native soil.
Post by: Treebeard55 on June 02, 2011, 05:17 PM
I treated almost all my trees yesterday with a preventive soil drench of a systemic fungicide. Before doing so, I (carefully!) dug out about a teaspoon of the remaining native soil from among the roots of my collected ponderosa. I'll put that soil back in the pot in a couple of days, in case the mycorrizhal fungi that the tree came with got clobbered by the fungicide.

While I was digging out that bit of soil, I encountered what looked like two pupal cases of something. They were too small for my camera's resolution, so I don't have pictures; sorry. Both were about 1/8-inch long, not quite as thick as a pencil lead, smooth, segmented, white with a bit of tan shading at one end. At first glance I thought they were broken-off bits of new root, but the segmentation, similar coloring, and the lack of any broken ends quickly scotched that possibility.

Does this description ring any bells with anyone? Whatever they are, I've never encountered them before (at least not at this stage of their life cycle.)
Title: Re: Bugs in the native soil.
Post by: BONSAI_OUTLAW on June 02, 2011, 10:34 PM
I hope you didn't put that stuff on any of your pines. 

I don't know much about bug identification in that particular part of their life cycles.  I would guess some kind of lil nasty grub, but then I have been known to jump to conclutions with bugs.
Title: Re: Bugs in the native soil.
Post by: Treebeard55 on June 03, 2011, 12:05 AM
Outlaw, I didn't see any of the little blaggards in the reserved soil. And, in any event, I plan to treat all my trees with imidacloprid (a systemic insecticide) within the next few days. I was already planning to do that when I found the beasties. I'd still like to know what they are.

Title: Re: Bugs in the native soil.
Post by: Elliott on June 17, 2011, 12:00 AM
Take them to your local garden center or college that has an agriculture dept. you can put them in a tupperware container with some of the soil, pieces of bark and some old needles and see what hatches. Could just be moth pupae or some sort of beetles. might be easier to I.D. then.
 Did you say there was two of them? Lets name them. I vote "itchy and scratchy" ;D
Title: Re: Bugs in the native soil.
Post by: John Kirby on June 17, 2011, 08:28 AM
Steve, try spectracide, will kill almost any of the grubs. Killing off the native pests is critical to a good start. John
Title: Re: Bugs in the native soil.
Post by: Treebeard55 on June 17, 2011, 03:23 PM
It's been two weeks, longer than I intended, but I treated all my trees with imidacloprid this morning. (Until I ran out, that is; bu the pondy got a generous dose.) One treatment at recommended dosages is supposed to be good for a year. Only problem is, dosage is given for in-ground trees and shrubs, so when treating potted trees it's necessary to extrapolate and scratch one's head a lot!

John, I'm not sure I've seen SpectracideT around here. I'll give a look for future reference.

Elliott, I wish now I'd saved them, but it didn't occur to me at the time. As for names, how about "Calvin" and "Hobbes?"