Injecting maples

[Zac]

I have found much difficulty in macro-injections on maples. first off, the root flair is difficult to excavate, due to many little shooter roots. Then the maples take a very long time to suck anything up. does anyone else have this problem or is it just me.

 

[treeman45246]

Maples have diffuse-porous wood, rather than ring-porous wood which makes them slower on the uptake than oaks, for example. Depending on the injection, timing the injection for a warm day when the sap is flowing and the tree is full of leaf is probably best. It's a lousy time of year for getting most macroinjections in, in my opinion. All I ever do at this time of year if Ferric Ammonium Citrate on Oaks - and even that is a little early.

 

[Tree Wizard]

Just out of curiosity - what are you "macro-injecting" maples for. We do a fair amount of macro-infusions but very few to maples. The few maples we do is generally FAC and maples have to be done earlier than oaks.

 

[Zac]

I have been injecting maples with Verdur. It is an iron injection to help correct chlorosis.

 

[Tree Wizard]

Verdur, Ferric Ammonium Citrate, FAC are all the same thing. Our experience over the years is that maples have to be injected late September. Once you get past the middle of October in southern WI, its slow going on maples even though oaks are still readily taking it up.