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Messages - hardyvermont

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1
Hardy Vermont, great recommendation.  Sugar Belle came to my mind also.  If I'm correct, I believe Sugar Belle shows some tolerance to HLB but is not actually resistant.  Is this your understanding?
Yes, that is my understanding.  It has the disease present but it does not show greening symptoms. 
"Sugar Belle flopped in its original release because it came out right around the same time HLB started causing major concern. The one grower that did buy the trees at that time, however, let them live after they became infected when they were 2 years old. Now 10 years old, the trees are still beautiful and productive, Gmitter said"
https://www.thepacker.com/article/greening-tolerant-citrus-varieties-gaining-interest

2
I have now lost most of the 20 or so mature citrus trees I have planted over the years.  I am afraid to due to HRB I have planted my last citrus tree.  From everything I have read the experts are really no closer to finding a cure or solution than they were at the beginning.

Please give me one good reason to still plant citrus.  I am afraid HRB has won and no cure will be found in my lifetime.  I will continue to plant other fruit trees, but sadly I think I will never plant another citrus tree again.  Anyone want to try and convince me otherwise?

http://nwdistrict.ifas.ufl.edu/phag/2017/05/19/uf-sugar-belle-citrus-variety-more-tolerant-to-greening/

3
Cold Hardy Citrus / Re: When to Plant in The Ground.
« on: August 15, 2019, 03:15:32 PM »
hartyvermont, thanks for your post.  After reasoning your post I can see your reasoning.  What is your planting advise is a area such as Colorado?  Actually I don't see much success in Colorado, plus my location is a 5,440-ft elevation. We really do not cool down slowly.  All of a sudden a cold front comes off the mountains and the temperature drops suddenly.
Plant them where they do not get direct sun in the winter, out of the wind.  That could be on the north side of a building or the north side of evergreen trees.  Poncirus trees do well as understory, they do not require full sun.  This combination of wind break and shade has worked where other planting situations either died back or were killed. 

As for the sudden temperature drops, it will be a learning experience to see if it works.  There is some evidence that some Poncirus are more deciduous than others, my plants kept some of their leaves, they are also supposed to become more deciduous with age. 

4
Cold Hardy Citrus / Re: When to Plant in The Ground.
« on: August 13, 2019, 09:45:35 PM »
Southern exposure of Poncirus in zone 5 will cause the plant to adapt poorly to the cold.  The heat from walls will keep it less dormant.  Sun will cause it it dry out, especially in windy areas when the temperatures are below freezing and it cannot take up moisture from the soil.

6
If a citrus tree is in a Citrus Greening area such as Florida with active ACP, the chance of the tree getting citrus greening is about 100 percent.  You can spray all you wish but it is still about 100 percent.  All it takes is just one infected psyllid bite.  HLB presently has not cure.  The only treatment to insure that a citrus tree will not be infected would to build a screen around the tree to keep the psyllids from ever landing and feeding on the tree.


Hi Millet,

In other word, unless put the tree inside the greenhouse otherwise there is no way to prevent the green disease from infected on the tree.  If it is infected, just destroyed it.

The more knowledge gain, the more worries about the citrus tree


Sugarbelle  http://nwdistrict.ifas.ufl.edu/phag/2017/05/19/uf-sugar-belle-citrus-variety-more-tolerant-to-greening/

7
Cold Hardy Citrus / Re: F2 citrange winter hardiness trial
« on: June 19, 2019, 04:23:50 PM »
A variegated Citrange I found recently.


Does anyone know what causes this?  It seems to be showing up on the new growth of Poncirus crosses. 

8
Cold Hardy Citrus / Re: F2 citrange winter hardiness trial
« on: May 20, 2019, 09:28:42 PM »
"Surprise Magnolia grandiflora discovered growing under Poncirus. The first seedling in 22 years!"

What variety is the parent?

9
Cold Hardy Citrus / Re: Unknown Citrandarin
« on: May 20, 2019, 11:21:39 AM »
Are the flowers fragrant? I think your tree is beautiful and if sold in a store, Id buy it. Excellent.

I can't recall if the flowers are fragrant.  However since it is most likely 50% mandarin, there should be fragrance. 

I was guessing that this plant is some type of hybrid that is produced commercially as a rootstock, and it was sent by mistake.  The seedlings of this tree are almost all identical to the parent based on leaf type, and it was disappointing to not have zygotic seed. 

Your comment and PDXIan's have made me reconsider this tree and I will make a couple grafts of it.  Thanks

10
What species of succulents are in the pots?

11
Cold Hardy Citrus / Re: Unknown Citrandarin
« on: May 07, 2019, 10:54:04 AM »
Amazing flowers.  A word of caution.  Your tree currently has a spider mite infection, or recently had a spider mite infection.  Look at the leaves with the tell tale heavy speckling pattern.
Millet, Yes, the older leaves are infested with spider mites.  It seems to be more a problem on this tree than on trees near by. I'll spray it with the horticultural oil you recommended.

SoCal2warm, Who would want a tree just for the flowers?  Citrus do not bloom for a long time.  I may cross it with something better tasting and maybe the double flower character will come through as well as a better fruit.

12
Cold Hardy Citrus / Unknown Citrandarin
« on: May 06, 2019, 05:40:12 PM »
A prolific bloomer with double mostly male flowers, this was sold as US 852, but the fruit are not the same as the US 852 fruit given to me by Stan Mckenzie.  The fruit are more red than 852 and don't taste quite as good.  Seedlings seem to be identical to parent plant. 






13
and the texture of the leaves is no longer smooth but rather coarse and rough.

That sounds like insects.  You are touching them or their frass.

14
Here's a video touching on this subject:https://www.youtube.com/watch?v=GNxREt0DgQ4. I found this intriguing, but it probably requires a greenhouse to perform it ideally. This topic starts at 1:00

Thanks Kumin, viewing the details makes it the method clearer.  Dr. Gmitter may have been the researcher who gave a talk at the Southeast Citrus meeting in November. 

15
When trying to speed up blooming on a seedling, does the rootstock make a difference? 

16
Cold Hardy Citrus / Re: Citrus tachibana
« on: March 17, 2019, 12:56:47 PM »
> "Changsha produces heavy crops of small, puffy, and seedy fruit. However, the fruit is very sweet and juicy."
Mines are big and not very seedy. They are not puffy but easy to peel. The rest is as you say: heavy crops, sweet and juicy but it is a good mandarine, not a very good mandarine.
Two years ago at the Southeastern Citrus Meeting I tasted the irradiated nearly seedless Changsha from Dr. Hanna.  It was very bland, which others had also described for the standard Changsha.  The fruit that got the award for Best in Show was also a Changsha, and it tasted very good.  It was fairly seedy.  There is a selection called Honey Changsha.

17
Citrus General Discussion / Re: Best roostock for potted citrus
« on: March 14, 2019, 10:44:37 PM »
What is your water source?  20 ppm is undrinkable and may be toxic to plants

18
Cold Hardy Citrus / Re: Citrus seed germination beginning in 6 days
« on: March 01, 2019, 04:58:40 PM »
Thanks kumin,  I just ordered a thermostat. 

19
Cold Hardy Citrus / Re: Anyone Showing Success in @0F?
« on: January 30, 2019, 08:51:51 PM »
A US 852 survived in the Philadelphia area long enough to have fruit a few times. I asked the owner in 2013 for seed, but he said it had no fruit that year.  It died back one winter a few years ago and probably died completely in the last severe winter.  http://www.philadelphiaspeaks.com/threads/my-citrandarin-tree.7372/#post-121801

20
Cold Hardy Citrus / Re: Trifoliate hybrid ID
« on: January 26, 2019, 11:33:27 AM »

21
Cold Hardy Citrus / Re: F2 citrange winter hardiness trial
« on: January 25, 2019, 01:10:14 PM »

I've grown poncirus since 1980 and lost everything above the snowdrifts in Jan of 1994. This was after 2 consecutive nights at -24 F. The trees resprouted below the snow height and haven't been injured since.

kumin, Thanks for this information.  Where are you growing poncirus?  Full sun, partial shade, protected from the wind?  Have you noticed any difference between poncirus plants? 

22
Thank you Ilya, that is very helpful

23
Poncirus grafted onto rootstock in November bloomed before setting out new growth under grow lights.  Could someone share the link about flower initiation on Poncirus and standard citrus?

24
Not very likely, at least not from a direct cross.

However you might take a look at this:
https://www.ebay.com/itm/Citrofortunella-x-TRICIMEQUAT-Cold-Hardy-Citrus-Tree-SEEDS-/382704720418?oid=362495154487
Quote
Citrofortunella x Tricimequat

Up for bid are seeds of the Tricimequat.  This is a beautiful small cold hardy Citrus tree, that gets fragrant white flowers, and delicious sweet Kumquat like fruit (and Kumquat is in the parentage of this unique hybrid), and like all Kumquats, you eat the peel and all with these.  This unusual cross is a hybrid of the Procimequat (another Kumquat hybrid) crossed with Trifoliate Orange for additional hardiness, and amazingly there is no bad taste from the trifoliate.  I enjoy eating these just as much as my Meiwa Kumquats, but this tree is much more cold tolerant  It is a rounded upright grower, and this is evergreen.  They are hardy to at least USDA zone 7b, and quite possibly 7a.  These plants would make excellent additions to your rare plant collection, or just make a unique statement in your yard.

You are bidding on 5 seeds of Citrofortunella x Tricimequat.  greg17086
Apparently it's a (Hong Kong kumquat x (kumquat x lime)) x trifoliate hybrid.

Although the sale has now ended, I was able to goad the owner of One Green World into getting and trying to germinate them.

Maybe if this was further crossed with Ichangquat we might get something truly edible.


Oh, by the way, I recently got the opportunity to taste Meiwa and agree it's the tastiest kumquat I've gotten to taste so far.

I ordered those a well, 3 have sprouted so far.

PDXIan has had three sprout, has anyone else had any luck?  Seed arrived dry and now are floating on the top of water.   :-[

Another topic: citrus seed harvested in December of 2016 has surprisingly germinated.  Seed were kept damp in the refrigerator. 

25
Citrus General Discussion / Re: Golden Retrever Tasting A Lemoon
« on: January 15, 2019, 12:31:58 PM »
YouTube search for dogs eating lemons turns up a lot of funny videos. 

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