I did air layering mid Sept last year according to Tom who posted his video on youtube before, unfortunately I did not see any roots at all. I was told air layering in Fall is supposed to be more difficult or less chance to be success. Is there any special attention to be aware if I want to proceed again this Spring ?

Girdle a ring around area that you want to root first
Take a knife ( sharp) and cut into the bark into the green layer all the way around it. Cut it again about a 1/4 inch away from the first cut. Remove that section and it will have visible roots in as little as two weeks. I did a airlayer on my white ischia. A nice size branch , it was on there for months. No roots at all. I did not girdle it. Lesson learned. You can get away on a small branch but,best to girdle. Soneone correct me if i am wrong.
Richie
Louisiana.

Richie, in my experience older wood does best girdled. Newer lignified wood I've never needed to

Thanks Richie and brianm. I will try again in a few days.

Hi pacifica,
I always do it on active growing trees. So I start in May/June and I remove them in July, August or September.
You need to leave it some time to root. Don't plan to rush it, there normally is no need to rush the process.
I don't girdle, and I don't use rooting hormones.
I have that many fig trees, because I don't need to use rooting hormones - I like apricots too ... But they don't root...
I don't girdle, because sometimes, whatever I do, they just don't make roots. That's fine by me, my branch is not lost, and I just use another branch .
If you can airlayer a root-shoot. It is way more practical.
Good luck and patience !

Started a few air layers that showed no signs of roots last year in mid August and I am pretty certain they wil root out soon.
Just needed extra time. Happens every year. In the past I have performed some air layers without completely girdling the branch and
these air layering did root. Unable to recall whether it took a longer time to root.

I needed to support a drooping limb last summer and tied it up to stake with some green, nursery tape.  I was surprised to see it had rooted under the tape -- an air layer without using any soil!  Figs are pretty amazing.

I would leave branch as is if the branch is alive. Starting an air layer in Sept when the weather cools down fast in Sept
is indeed insufficient time for roots to develop in our zone.

I saw its somewhere, you "smear cut red onion" on scrape? green branch and wrap it in black plastic, and it will root in 2 weeks, not sure detail and working or not.

To add more confusion, I was fooling around with my older fig tree, I air layering ( Brown branch)at spring time without girdle, it had rooted in 1 month, I did same thing at July, few months passed by, no root, very strange.

I find that sucker is easy to root than cuttings, Just put them in pot soil in shaded area, it will root quickly, What I mean is that, you can air layering  and plant its sucker at same time. so you will have more chance of rooted fig trees.

It definitely works better when the tree is actively growing. Rooting needs naturally produced plant hormone called auxins, which I believe flow to the wound site easier when the sap is flowing. I haven't tried girdling branches before, but just make sure that the soil doesn't dry out. Auxins are present in other things as well, and may promote more growth, some say that willow leaves have a high concentration of the hormones and that a willow leaf tea will help promote growth.