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Messages - orangedays

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26
Cold Hardy Citrus / Re: Anyone growing Croxton Grapefruit?
« on: October 15, 2021, 04:45:10 PM »
Thanks, The pictures are impressive. Do you prune it back to maintain size or does the flying dragon root stock naturally keep it that small?  Does it ripen in the fall or spring?   your set up for keeping them covered is nice.  It looks simple to construct and attractive.

27
Cold Hardy Citrus / Anyone growing Croxton Grapefruit?
« on: October 13, 2021, 09:56:26 AM »
Does anyone grow Croxton Grapefruit?  I would be interested to hear your of experience growing it and how hardy you judge it to be. Thanks.

28
Cold Hardy Citrus / Re: Fukushu X PT seed
« on: September 28, 2021, 08:05:36 PM »
I also need more experience with storing pollen. I saved some pollen this spring and used it on some kumquats this summer but none of the crosses took. The cross above was done in the spring when both the fukushu and the poncirus trifoliata were blooming. The fukushu bloomed again in July and made and attempt with the stored pollen then, but all the fruit aborted. 

29
Citrus General Discussion / Re: Can I graft now?
« on: September 28, 2021, 09:52:23 AM »
I don't know if the fall is a good time or not.  But last fall I made a large number of grafts and set them in a cool green house where the temperature at night was often only 4 or 5 degrees F above freezing in mid winter. I checked them frequently and though the scions stayed green nothing happened. They were grafted on the PT seedlings.  When spring finally rolled around they started to grow.  So I may have done better waiting until the Spring.  Since you will keep them warmer, and maybe not onto PT root stock your grafts may not wait until Spring to grow.

30
Cold Hardy Citrus / Re: Citramot?
« on: September 15, 2021, 12:59:33 PM »
You will probably have good success. I found that is 5 out of 6 crosses I made resulted in hybrids. The one that did not, tangelo X citrumelo was not overly polyembryonic. let us know how it goes.

31
Citrus General Discussion / Re: Grafting on 6 week old seedlings possible ?
« on: September 15, 2021, 12:54:45 PM »
Grafting seedlings worked well for me also.  Here is an updated image of the seedling rescues. They are on PT. They did not grow as fast as the non-grafted seedling. I wonder if its from recovering from grafting of being on PT which is a slower growing seedling than these tangerine X tangelo crosses?


32
Citrus General Discussion / Re: Are these leaf minor eggs?
« on: September 15, 2021, 12:50:14 PM »
These are definitely butterfly eggs. I caught the butterfly in action and snapped a few photo's. Unfortunately the photo quality is fairly poor but it shows the type of butterfly involved.




33
Citrus General Discussion / Re: Are these leaf minor eggs?
« on: September 15, 2021, 12:46:41 PM »
I do more or less. I plan to spray every week with neem oil and spinosad. But I actually do the much less frequently because of rain or bright sun light or I just don't get to it. When I do the leaf minor is not a problem and it also takes care of scale. I am not sure it works so well for spider mites. It helps but I think they persist in small numbers or else they float in from other plants that don't get sprayed.

34
Cold Hardy Citrus / Re: TaiTri
« on: September 06, 2021, 08:01:05 PM »
this is a very healthy tree. What are the fruit like?  I have an unknown PT hybrid with leaves that look very much the same, narrower than citrumelo or citrange. The fruit looks exactly like a very yellow lemon and it tastes like a lemon except the skin and white it is extremely bitter. More bitter than straight Poncirus trifoliata. But none of the latex like gum of PT. This tree does fine in upper zone 8a. I read that Citrus taiwanica is very bitter also.   

35
Citrus General Discussion / Re: tanglefoot direct application experiment
« on: September 06, 2021, 07:46:06 PM »
-Do you feet the tangle foot server its purpose? I never felt it was that much help, but then most of my insect problems are from flyers.

36
Citrus General Discussion / Re: Are these leaf minor eggs?
« on: September 05, 2021, 07:42:30 PM »
Thanks, There are butterflys fluttering around the citrus all day.  The bird dropping caterpillars have had their share of leaves and even some rather large brown weevils attacked the PT leaves this year.  But the leaf minors aggravate me the most. They sneak up on me when ever I fall behind on the neem oil.

37
Cold Hardy Citrus / Re: Fukushu X PT seed
« on: September 05, 2021, 07:32:49 PM »
Thanks Tedburn.  I hope to keep these alive so there is something to tell.  Some of the seedlings are showing the PT origin.  The crosses seem to be growing faster than the clones. I think there will be six crosses in this batch.  Hopefully they will survive and grow this winder and next spring I will bud graft them onto an older citrus to see what comes of them. 


38
Citrus General Discussion / Are these leaf minor eggs?
« on: September 02, 2021, 05:27:51 PM »
I often notice these tiny eggs on new citrus shoots. The citrus leaf minor is a nuisance here.


39
Cold Hardy Citrus / Fukushu X PT seed
« on: September 02, 2021, 05:09:48 PM »
Here are a couple of images of seed from a Fukushu X PT cross I made this spring.  I peeled the seed coat off to increase the speed of germination.  It's interesting to see the color differences in the embryos. Someone on this forum had indicated there would be a color difference if the PT parent has tan seed and the citrus parent's seed are dark green. I am hoping/guessing the lighter colored embryo's are the crosses and the darker green are the apomictic embryo's.

The is the second batch of seed I prepared this way. Many of the seed from the first batch have germinated eight days later, the shoots are still too small to see if any have trifoliate leaves.






40
Citrus General Discussion / Re: Fungal disease on new flushes?
« on: August 25, 2021, 12:00:47 PM »
It looks as if the damage is confined to only the tenderest part of the new leaves; it may be a reaction to an environmental stress, rather than fungal invasion.  Did you spray the citrus recently? Sometimes insecticidal soap burns tender young growth while mature growth shows no damage. Other types of horticultural sprays/fertilizers can also burn young shoots. Certain varieties are more sensitive than others. Bright sunlight on water or oil spray droplets can also cause burning on tender growth. Perhaps to be safe, isolate the plant, but don't give up hope.

41
Temperate Fruit Discussion / Re: American black cherry
« on: June 28, 2021, 06:17:23 PM »
Thanks, but no, I do not think they will grow in GA. We have the ones with pea sized fruit that are wild. I was wondering if they had any commercial use.

42
Temperate Fruit Discussion / Re: American black cherry
« on: June 28, 2021, 12:41:39 PM »
The black cherry I am wondering about is prunus serotina.  It is the same as is used in black cherry lumber.  Some are sweet and taste similar to sweet cherry when they are fully ripe. The fruit are tiny and most are astringent and not very good.  They grow into large trees but suffer from black knot.  They grow throughout the eastern US.

43
Temperate Fruit Discussion / American black cherry
« on: June 26, 2021, 09:57:55 PM »
There are many wild black cherries in the US south east where sweet cherries and pie cherries do not grow or live very long.  Does anyone know if black cherry cultivars have been selected for fruit and if any one is working with these fruit? 

44
I am not an expert but I can relate some of my experience with root issues. If the citrus is in a large pot it is often hard to determine how wet or dry the soil is around the plants roots. I sometime grow a pepper plant or annual herb with thin sensitive leaves, in the same pot with a large citrus plant. When leaves lose turgor, the citrus needs to be watered enough to keep the pepper's leaves looking good but no extra water should be given. The tree doesn't suffer and it takes the guess work out of watering. I think watering a set amount is not good, you have to watch the plant's leaves and water when it indicates it needs water. Since citrus have thick leaves this is hard to detect. But a pepper is open about its requirements.

If the roots stays wet and are hot the roots will start to die. I have this trouble when my plants stay in the green house too long into the summer. The roots usually start dying off and a lot of root death can happen before the leaves start to show symptoms. But citrus are usually resilient and will grow back quickly if re-potted into fresh dry soil. Too high a ph will also be a problem for PT root stocks.

45
Now that I've looked a a lager image of the underside of the leaves. I don't this is muscle scale. Normally the scale also settles along the petiole and the petioles and stems look clean on these leaves. The muscle scale also leave hard brown muscle shell shaped marks that are not integrated into the leaf but on the top of it. Maybe it is some type of fungus.

46
This looks like muscle scale, Lepidosaphes beckii. Try scratching off the brown marks on the leaf, if they detach from the leaf and are filled with soft wet mater then you can be sure. Its a persistent problem in the south east. The scale is often in the surrounding environment so you may have to continually treat for it. If you don't treat it, it slowly kills small plants.  However if the tree is small enough to cover with spray, neem oil and spinosad work really well so long as you spray every two weeks for several months.  There is also imidacloprid systemic insecticide. This works well against the scale but it is very toxic systemic so its recommend after blooms and as a last resort.

47
This was an interesting idea so I tried it out. It seems like a good aproach since the cambium to interior wood ratio is quite high for seedlings. I took a few seedlings that were failing to thrive on their own roots and grafted them onto seedlings PT.  Then I stuck the PT tops in the pots beside the grafts.  It took a couple of months before I could see the new shoots on the seedling rescues but as you see they are growing. And the two of the PT tops rooted and started to grow as well.









48
Cold Hardy Citrus / Re: Yuzu seedling growing in Washington state
« on: May 03, 2021, 09:13:32 AM »
soCal2warm - Thanks for the note on the yuzu vs changsha.  I bought two rooted yuzu this spring and was wondering if they are more cold hardy than changsha, I want to plant them out doors this summer. It sounds like yuzu and changsha are close in hardiness. I planted about 20 changsha seedlings, 18 inches tall, in an very exposed area this winter. The majority suffered considerable leaf damage and top die-back of about 6 -10 inches but are sprouting out vigorously now.  Our lowest lows were floating around 20 F this winter but they can go down to 5 F on rare occasions. I also kept 3 potted changsha tree with 3/4 inch trunks in the shade of large trees. The potted changsha showed no damage at all and bloomed this spring. Also the changsha seedlings closest to the wood line had very little cold damage.  Based on your results, it sound like I should protect the yuzu until they are a little bigger and maybe plant them close to large trees. Its good to know yuzu is growing outside in Seattle.  I have friends near by who want to grow yuzu but think its a dead end due to long cold spells common to the area.

49
Fruitmentor,  Thank you for all the grafting videos you put on you-tube. After watching your videos I have had good success with both cleft and bud grafting of citrus. I used the same technique on peach and plums this year and found it worked with 100% success.  I really appreciate the knowledge you have shared and enjoy all your videos. They are very well done. Thanks again.

50
Quote
At the Charleston SC Citrus Expo, Citrus Joe, and I seen the lady who owns the land where the original Tangelo tree was found.

Millet,
Can you give the back story on the 'original' tangelo?  I would love to hear the origination story!

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