I have a Ponderosa that I collected on Monday and potted that same day that is showing some sort of white "milky" substance on the needles. I don't recall seeing this when I collected it. Any idea what this could be? Confused Dave in Colorado.
Thanks Bill......I will get this done this afternoon.Mix up the ole water, dish detergent, teaspoon of alchol, and a touch of vegetable oil and give it a good spray. If it's poop it'll wash off easy enough, if it's pests, the concoction should help that too. Pine scale can leave a gob of mess like that, sounds pretty fast though.
Bill,Mix up the ole water, dish detergent, teaspoon of alchol, and a touch of vegetable oil and give it a good spray. If it's poop it'll wash off easy enough, if it's pests, the concoction should help that too. Pine scale can leave a gob of mess like that, sounds pretty fast though.
Thanks for the info Rob. I have an idea of what I'll be doing this weekend now.The general recipe is 1-2 table spoons of dishwashing liquid..(Ivory, Palmolive etc..) 1 table spoon of cooking oil (pure vegetable oil). Mix this with 1 gallon of water. Then pour it into a spray bottle. Now add a capful of alcohol to the spray bottle (the cap from the alcohol bottle), Shake well..
Also, after about 18-24 hours I would completely rinse off the tree. After spraying, keep the tree out of direct sun for 2-3 days.
Thanks Rob...that is a wealth of information. I will follow your instructions.There is more info that I should mention. If it is scale, you should try to remove all the ones that you see or most of them before you spray. You can use a tooth pic of tweezers. This will make spraying much more effective. Scale lay their eggs underneath the protective shell. By removing them, you are exposing the young and killing them as well.
Even if you don't remove them before spraying, you will need to remove them after a few days or so. If they are dead, they will flake off, if they are still alive, they will smear (so to speak).
Also, after about 2-3 weeks, you may and probably will have to spray again. This is to kill the second generation. Since and if this tree has scale, you will need to do periodic inspections of it all through the season and each season. Scale tends to regenerate, usually in the Spring. Also, very IMPORTANT..Keep this tree isolated from other trees.. Do not have it near other trees and do not water it where the residue is washing over other trees. Until it is clean, try to keep some distance between it and your other trees.
I hope this is helpful,
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