pin oak in Northeast, when to apply Iron supplement?
Antonio Marra
5 years ago
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Smivies (Ontario - 5b)
5 years agobengz6westmd
5 years agoRelated Discussions
Northerb Red Oak & yellow leaves
Comments (21)My first thought is actually nitrogen deficiency just as a reminder once again: providing nitrogen after August 1st can result in the death of a tree next year because the wood could go into winter without having "hardened off" is the term used and thus the wood/bark and buds for leaf growth as well as branch growth) would be affected. Think of Nitrogen this way: Heavy amounts will certainly green up your tree (this is what lawn company's do to make a lot of money - they fertilize as often as up to every two weeks with a lot of "liquid applications") but, in order to keep the leaves green, they are as the first responder notes, using too much nitrogen while the probelm most-likely is occuring in that the uptake of other "trace minerals" isn't quite happening. Chlorosis can be ruled out immediately upon examination of your photos. Lou is 100% right that you have the wrong tree. The correction of soil alkalinity (nitrogen boosts as to temporarily-only correct the problem (nitrogen is a significant by-product of pelletized Sulphur ("pelletized" is the old farm word I know) and of course Sulphur helps to aid in the recovery of chlorosis/chloratic symptoms but once again, you're dealing with "minerals and in all forms really as these are the building blocks for all living things." Minerals of course are also found in water... There's a lot to break down in this type of question to come to a logical answer, but still one that's a guess at best. The "Green Light" products offered are 'organic' however Sulphur while it seems and I did'nt know this as actually "inorganic" - yet the Department of Agriculture deems it as "organic" , or at least that's how I'm interpreting Lou's words currently along with a lot of other erroneous information I've either learned reading or from previous bosses, etc-. I used to spray mainly fruit trees with an organic firm and we used "liquid copper" as well as "Liquid Sulphur." And I recall my boss mentioning that the USDA has deemed these to be, "organic." Those words always stuck in my mind even though I was getting this "organic" crap all over my body, in my skin, and in my lungs. Not pretty folks. I'll let Lou sort this one out for me as I now don't understand precisely his comment. I do believe that he is trying to make a distinction among Sulphur in bottle or hard form, versus "natural formation of Sulphur" derived from decayed mulch. Is this right Lou? Overwatering can also be ruled out in my opinion because this produces the outside of a leaf to brown-up. In this person's case, large patches are observed. I still stick to my guns and say that the splotchy-burning is a reult of drought and that your tree is suffering from a lack of trace minerals which could include nitrogen. Do keep it watered once a week for a good while and if you have time, let it almost dry between waterings. Continue this schedule until this time next year at a minimum if you're going to be stubborn by keeping this tree. It's not a hopeless case, but it is something you'll need to continue addressing. Regards, Dax...See MorePin Oak Dying/Dropping Leaves...
Comments (5)Joe !!!!! ... you have a new babe.. what in the heck are you worrying about the trees for?????? up here in my neck of MI .... 6 weeks without a trace of water... and 2 of the weeks near 100 .... leaves are dropping off the following: red bud, birch, chestnut, oak, poplar, lilac, mock orange .. etc ... very simply .... WHAT CAN YOU DO ABOUT IT???? .. and forget about the neighbors... their grass is always greener .... now get your priorities straight... go snuggle the poop machine and forget about your trees ... they have survived in nature.. in drought.. for millions of years.. they can handle it.. and if they cant .. you have better things to do .... now go bath stinkee... have a great day .. and congrats on the important thing... ken...See MoreOak Tree
Comments (11)Missinformation- Most likely, the one with light green is a wrong type of red oak for your soil. I have seen those red oaks like that in my area. I'm sorry but it isn't worth the trouble trying to make it work in the long run. I'd replace it with something else. It has proven to be difficult to know if it's the right red oak for alkaline soil until winter when you can look at the buds but most stores esp big boxes stores do not sell them during the winters. Specalized nurseries should have them but not many to pick one out. Did you even read the article that I provided the link to in the previous post? It pretty much answers the million dollar question - can it grow in alkaline soil? I spent many hours trying to look for specific answer and found this article because I had the exact same problem as you and a lot of other people are having. I just decided to get rid of that tree and kept the one with dark green leaves. It just performs so much better... Greensand might help to a degree but it didnt do much for mine at all. It does not make soil more acidic at all. In fact, it is on the alkaline side. Oak trees will get huge and will get more difficult to treat this kind of problem. it just isn't worth it. You'd have to spend hundreds of dollars trying to fix it when you can spend 25 dollars for 5 gallon container tree to replace it and it will grow much faster if it is the right kind that can grow in rocky alkaline soil. i've seen them thriving everywhere in central texas. the key is where the seeds come from......See MoreDo oaks make the soil more acidic for themselves?
Comments (13)Those are good questions....for a container grown tree, there are a couple of ways to meet its needs. a) grow it in acidic soil (likely no less then 6.5)) or b) supplement it with chelated iron drenches. Probably a bit of both is what actually happens. For field grown, I'm amazed at what the wholesale nurseries in southern Ontario are able to churn out of glacial till (which is typically 7.2-7.5 around here). Don't know how they grow Pin Oak reliably? In southern Ontario, the only healthy Pin Oaks I have seen grow on old undisturbed soils (where the A horizon is deep w/lots of organic matter) or where the bedrock is Canadian Shield. New developments have very shallow disturbed A horizons overtop the pH 7.5+ subsoils. Even Red and White Oaks get chlorotic....See Moreken_adrian Adrian MI cold Z5
5 years agoAntonio Marra
5 years agobengz6westmd
5 years agoSmivies (Ontario - 5b)
5 years agoAntonio Marra
4 years ago
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Smivies (Ontario - 5b)