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Topics - HIfarm

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1
Tropical Fruit Buy, Sell & Trade / WTB red fleshed Bouea
« on: May 21, 2019, 04:58:53 PM »
I have seen references on line to red fleshed sweet Bouea macrophylla from Indonesia known as "ramania pipit" and "ramania tembaga".
 However I have had no luck tracking these down nor have I talked to anyone who has encountered these red fleshed sweet maprang.  Does anyone have access to seeds of the sweet red fleshed ones?

John

2
Tropical Fruit Discussion / Sil-Matrix on Mango?
« on: March 15, 2019, 05:36:26 PM »
I was just wondering if anyone has tried Sil-Matrix on mango for fungus control.  I saw some on sale (or clearance?) at my local co-op & saw it was listed as a fungicide, miticide, & insecticide.  I didn't have time to look it over too well as I saw it at the check out but I picked it up anyway (2 1/2 gal for $25 sounded like a deal).  I have had time to now check it more & see it is a soluble silica and it is primarily effective against powdery mildew. I was hoping it might also have some activity against anthracnose but that is not claimed on the label.

Has anyone tried this product on mango?  If so, verdict on effectiveness?

Thanks,
John

5
Citrus General Discussion / First Fruiting of Sanguinelli Blood Orange
« on: January 26, 2019, 07:24:54 PM »
I tried my first fruit of my sanguinelli blood orange today.  My young tree was really too small to be bearing fruit but I let it keep the two fruit it set this year anyway.  The tree is planted at probably 650-700' elevation here just outside of Hilo, HI.  Advice I had seen indicated that only Moro blood orange was worth growing here and that the others would not develop any color at all.  I planted a Moro and a Sanguinelli with low expectations for either developing any real blood pigmentation due to our lack of any real cold snaps here.

I was uncertain about the ripeness of the oranges.  Regular oranges sometimes do not color up well here so I was not sure what to expect from a blood orange.  The orange developed a nice deep orange color with a little rosy blush -- not the exterior color Sanguinelli is noted for but very nice!  I was uncertain about the ripeness of the oranges; I would be gently probing & squeezing to see when they seem to have a little more "give".  When I tried it today, it came off in my hand -- so maybe a bit over-ripe? 

I was amazed when I cut the orange open, it had developed some nice rosy coloration in the flesh as well!  The flavor was mild, low acid, mildly sweet, and juicy.  It was sort of "citrusy" but not a typical orange flavor.  There was another flavor -- maybe peach? -- that seemed more predominant.  If I were blindfolded and someone popped this in my mouth, I would have no clue of what kind of fruit it was.  My wife is not a fan of oranges but we both enjoyed it.  I suspect it will improve significantly in the future.  The fruit had 14 well developed seeds as well as 3 or 4 small aborted ones.  Since I had no other citrus flowering at this time, I have decided to try to grow out the seeds.  With no other citrus blooming, this will be a "selfing" (as plant breeders say) where it will just be juggling around the genes of Sanguinelli so there could be some interesting variants coming out of this.

The bottom line is, if you are in HI or similar tropical areas, do not just dismiss Sanguinelli as unsuited for your orchard.  It might not color up as well as in subtropical areas but you might still be pleasantly surprised.

John







6
An interesting (& helpful) paper on pollination in Annonaceae:

https://onlinelibrary.wiley.com/doi/epdf/10.1111/j.1095-8339.2011.01208.x

7
Here is an old paper by Swingle on a rarely seen citrus relative:

https://naldc.nal.usda.gov/download/IND43965419/PDF

8
Tropical Fruit Online Library / Starting coffee from green beans
« on: November 08, 2018, 06:31:56 PM »
I noticed a posting about "rare" coffee seed being available.  I don't know if it is general knowledge but coffee can be germinated from fresh green coffee beans so you can then have access to truly topshelf varieties like gesha and others.  I have not yet tried this (I am waiting to develop some "overstory" first) so I cannot comment on the germination rate.  If you search on line, there are many articles on it, here is one:
http://www.coffeeresearch.org/coffee/homegrowing.htm

10
Tropical Fruit Discussion / Bellucia sp. pollination
« on: October 16, 2018, 09:23:37 PM »
If any of you have ordered Bellucia grossularioides from Jim West (or other Bellucia sp for that matter), it appears that they are self-incompatible so at least a couple need to be planted.  I will enter the link to the paper in the library section.

12
Tropical Fruit Discussion / Corynocarpus cribbianus
« on: September 18, 2018, 03:50:36 PM »
Anyone know anything about this fruit?  It evidently occurs in Aus, PNG, & the Solomon Islands.  Since rare fruiters like Mike T do not seem to have mentioned this (couldn't find in google search), I am assuming it is not worth attention.

John

15
Tropical Fruit Discussion / Mango graft problem
« on: August 21, 2018, 02:49:21 PM »
I have tried to graft some mangoes the last couple of years & have had very poor success.  I have been using cleft grafts & used to get very good results on temperate fruits, ornamentals, conifers, etc but I have not done well with mangoes.  I have been using rubber bands to secure the grafts and buddy tape to cover the scion & area near the graft.  It is possible that my eyesight is just gone down hill enough that I no longer line up the cambiums well enough but I don't think so. 

One thing I have noticed is that the scions tend to look like they are developing sooty mold (or something that resembles it).  Unfortunately, I neglected to take any pics.  It is not present on any of my trees or anything nearby but this is the Hilo area & fungus & other microbes are everywhere.  We do have a humid environment here but I am guessing that I still need something to insure that the graft area does not dry out initially.  I have not tried hydrogen peroxide or dilute bleach to sterilize the scions -- maybe that would be worthwhile.   Anyone encounter anything like this?  Any ideas?  I was thinking about trying to use a loose fitting plastic bag with a few small holes in it taped to protect the graft area from drying.

John


16
Tropical Fruit Discussion / Rust on Myrtaceae in Hawaii
« on: May 24, 2018, 04:35:03 PM »
I've been wanting to post this for a little while but I have been waiting since I think Oscar would be the main respondent and I know he has had a stressful period with the volcano activity.

I have seen a pretty wide range of response of various species in the Myrtaceae alliance to our rusts here in Hawaii.  Many (so far) seem unaffected but a couple are really struggling.  Cedar bay cherry (Eugenia reinwardtiana) seems to be one that is having a tough time.  I have one tree of onionwood (Syzygium alliiligneum) that is growing like a trooper while its neighbor is now pretty severely stricken (greatly slowed).  So far, it has been a while and I am not seeing this second tree affected so perhaps this particular tree has some natural resistance.

I live in an area where there is a solid reservoir for this rust.  There are tons of rose apple (someone originally told me that they were mountain apple but I now hear that they are probably rose apple) in the palis that are severely affected (they "kind of" grow, slowly and weakly, but I have never seen fruit on any).  Unfortunately, it is all around in the area so there is no way to eradicate them.  I'm sure that there are others in HI in the same boat as me.

Can we start a list of Myrtaceae that are wise to avoid in Hawaii for rust susceptibility? 



John


17
I just wanted to doublecheck, I think I had read here that mango & kuini are graft compatible, correct? 

Thanks!
John

18
Temperate Fruit & Orchard Online Library / Cyclopedia of Hardy Fruits
« on: March 17, 2018, 03:24:04 PM »
I came across this pdf.  Seems like a good reference for some older clones that are now sometimes pretty obscure:

https://ia601403.us.archive.org/27/items/cyclopediaofhard00hedrrich/cyclopediaofhard00hedrrich.pdf

John

20
Tropical Fruit Discussion / Bakuri seed prep (Platonia insignis)
« on: December 04, 2017, 02:19:43 PM »
I've got a question I am directing to Oscar of FL but others may have the same question so I decided to post here.  The seed packet has instructions to "first soak seeds in distilled alcohol for 10 minutes".  I am assuming that this is ethanol ("drinking alcohol") not isopropanol or methanol.  I also assume that denatured alcohol would not be appropriate.  What percentage / proof should be used?  Could a relatively neutral high proof spirit like vodka be used?  (I can think of good ways to use the left over alcohol in that case.  :) )

Thanks,
John

22
Tropical Fruit Online Library / Monkey colas
« on: November 20, 2017, 01:48:59 PM »
Info on some monkey colas, where the aril is eaten instead of the nut:

http://www.journalrepository.org/media/journals/ARRB_32/2014/Mar/Ogbu4122013ARRB8066_1.pdf

23
An interesting article on a Puerto Rican Eugenia, also includes a key to identify Eugenias in PR & Virgin Islands

https://homes.bio.psu.edu/people/faculty/tac17/Site/Caraballo_files/Euenia%20fajardensis%202014.pdf

John

24
Tropical Fruit Discussion / Annona paludosa
« on: July 09, 2017, 01:08:00 PM »
Anyone fruit this yet?  Just wondering how you know when fruits are ripe on this one.  I assume they perhaps start to yellow a bit?  It looks like they get to about the size of a large strawberry or perhaps a bit larger.  Since it is often compared to a small soursop, I assume you pick when still a bit under-ripe & allow to ripen on the countertop?
Any advice is welcomed.

John

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