Chlorosis on Pinus strobus?

Thanks everyone.

No chance of ice-melt salt on this one. The bed it sits in is elevated above any walk/roadway, and the tree is 25' away from the closest sidewalk.

No burlap/twine/ties/etc at the root crown either. There's a good chance that the wire basket is still down there though.

Soil quality is likely decent, for a constructed/urban site, as these beds were spec'd with a good layer of added topsoil, although I can't currently remember to what depth. In other words, I think there is probably sufficient organic matter in the soil. The problem may be the drainage, as there are some drainage issues in the adjacent lawn that are more realted to grade.

Strange how this one is suffering as the surrounding shrubs, and the other two eastern white pines behind it (similar size) are doing quite well.

Any suggestions on possible nutrients to add to the soil? Iron?

I might have totally misunderstood Harris, but as I was reading in
<u>Arboriculture</u> the other day, it seemed like he was saying the soil testing for trees and woody plants isn't always a good indicator of nutrient deficiencies in the plant, for various reasons. Maybe a foliar analysis is the way to go.

(For the record, you all have convinced me beyond the shadow of a doubt that wire baskets, burlap, kitchen sinks, etc. shouldn't remain in the planting hole with the tree...not that I was doing that anyway
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[ QUOTE ]

Any suggestions on possible nutrients to add to the soil? Iron?

I might have totally misunderstood Harris, but as I was reading in
<u>Arboriculture</u> the other day, it seemed like he was saying the soil testing for trees and woody plants isn't always a good indicator of nutrient deficiencies in the plant, for various reasons. Maybe a foliar analysis is the way to go.


[/ QUOTE ]

The Harris quote I was referring to:

"Soil analysis can fairly accurately determin the availability of phosphorus and potassium to turf, herbaceous plants, and small shrubs, but it is of doubtful value with regard to trees and deep-rooted shrubs...Only in extremely deficient soils, such as acid sands, have soil test results correlated with woody plant response and then only as regards the level of phosphorus...The amount of other nutrienst in the soil can also be determined but, to date, they are of limited value for determining the fertilizer needs of woody landscape species."

Harris, <u>Arboriculture</u> pg. 94
 

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