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Messages - pagnr

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1
Tropical Fruit Discussion / Re: Not enough Durian Discussion
« on: October 05, 2022, 07:19:22 PM »
What about other tree species around your area, are they subject to borers ?
Around here Citrus are subject to Elephant weevil larvae borers, in a feedback loop maybe of physical damage / root rot.
Probably a host of other possible candidates in your Wet Tropics area, jumping across from native trees ??
There is some thought that stressed trees are more attractive to pests.

2
Ultra dwarf Papaya varieties.
Any thoughts on Avocado vars, some are pretty compact, short nodes, small trees.
Citrus are going to be controlled by container size.
Grafted Tropical fruit trees and Marcotts might be better choices for containers than seedlings ??

3
Cold Hardy Citrus / Re: woodchips for heat
« on: October 04, 2022, 03:28:37 PM »
A compost pile inside a greenhouse could generate a lot of fungal spores, at certain stages or if the conditions are not right.
Might be better to do a chamber method where the heat is transferred in but the composting is kept separated.
"Organic" composting involves mixing ratios of plant waste ingredients to get the correct Nitrogen balance.
Plain wood waste like sawdust or wood chips can be composted with Urea as the N source, and a few other additions to assist the microbes.

4
Citrus General Discussion / Re: How to control a thrips infestation
« on: October 04, 2022, 05:25:55 AM »
I had thrips on Persimmon trees in containers. It is important to spray the undersides of the leaves, where the larvae are clustered.
See if you can see larvae on the leaf undersides. These can be easier targets than the adults.
You need to rig the sprayer nozzle to point upwards, possibly a long wand will help ( more so if you are also fighting Gnomes and Trolls ).
Also they have a life cycle where they moult in the soil, then reemerge as adults, so you need to repeat the spray process to interrupt the lifecycle.
You can knock a lot of larvae off with a water spray.
I used Pyrethrum and Neem sprays. Possibly Hort soap sprays would work.
It useful to have a spray nozzle set up like spray painting every leaf, low volume, mist, wide fan.
As the larvae were moulting in the pot soil, a fertiliser application with wetting agent, a surfactant ( basically a safe detergent ) seemed to interrupt them too.

5
Not sure if I remember right that the ink was changed in some markers, fumes too much for school use.
Anyway I have labels from years ago ink is still good, I replaced some last year, new pen, new tape,  and they faded in 6 months.
Aluminium tags are good as it is indented even with a pencil pressed hard, no ink to fade. Same for UV stable plastic labels, you can scratch it in with a sharp nail.
I have had a moments of trying to decipher codes on some labels I wrote, it usually comes back a few days later.

6
Thanks for that.
You should try Ful Medames with Fava beans, particularly made with the small dry Fava beans.
If You like Hummus and Babaganoush etc, it is on par with those with a unique flavour.
Haven't made it for a while, but it was a favourite, ( "and a nice Chianti" !!!! ).
I first tried it at a Vegan restaurant.
Not sure I would try the dry Lab Lab beans, but might be missing something ? Might be great in the right recipes
Was more wondering about the garden grown green beans, are they particularly good for certain dishes ?
Some of the green beans seed vars available are much bigger than in the attached pic.

7
Citrus General Discussion / Re: Identify this citrus tree
« on: October 02, 2022, 07:36:29 AM »
Orange or Sour Orange ? Any more info ? Any fragrance to the leaves ?

8
A couple of seed sellers have some really interesting large types of Lab Lab / Hyacinth beans, i.e. very large flat green beans ( some green types, some purple types ).
Just wondering how these might be used ? Maybe like snow peas ?
Any good suggestions ?
https://seedsofplenty.com.au/wp-content/uploads/2020/07/CLIMBING-BEAN-Lablab-2.jpg

https://en.wikipedia.org/wiki/Lablab

9
Tropical Fruit Discussion / Re: Durio crassipes
« on: October 01, 2022, 08:49:47 PM »
Cassowary, Are you a member of the Rare Fruit Council ??
The person I am thinking of is in the Mossman Branch, goes overseas a bit.
I visited some of those older collectors 20 years ago. They were very open and helpful back then.
Don't know if they still do markets, I had it has changed a lot since then so I hear.

10
Tropical Fruit Discussion / Re: Seeds Del Mundo dishonest business?
« on: October 01, 2022, 06:38:30 PM »
Always wondered how they can manage this kind of business selling Tropical fruit seeds collecting from around Surinam about 3 degrees N of the Equator and sending to an intermediary in Netherlands about 10 degrees South from the Arctic Circle and ship it back to the tropical or subtropical area customers. All by Airmail!

I was formerly an overseas member of Seed Savers Exchange, trading with USA members. Mainly dry stored vegetable seed, but no problems back then.
Also did some Tropical Fruit and Australian Native fruit seed collecting in Far North Qld and Cape York.
Some were mailed to other people in Australia, some were packed and transported.
Some went overseas.
Apart from some over zealous people at the front desk of the Post Office, who wanted to enforce rules they don't understand,
and a few Customs Officers / Seed Inspectors with a similar frame of mind, mostly it went well.

11
Oregano seems pretty popular with wasps along with Parsley ( Apiaceae ). Possibly others in the mint family such as Basil, Perilla ( Shisho) etc.
Chia might be another, seed is available Chia seed, not too expensive. Seems to germinate better with rain than irrigation.
Buckwheat is another possibility, unhulled kernels will grow.
You may consider other sprout seeds, relatively inexpensive. Red Clover etc.
Local native species would also be worth investigating, plants that can substitute for those above and promote local beneficials.

edit Salvias worth looking at, may be local species.

12
P. borbonia is not graft or cross compatible with avocad based on the research I have studied. Are the others?

The hardiest, P. borbonia, P. ichangensis and P. lingue, none are in the same sub group as Avocado.
Based on what you say, probably not.
Only Persea schiedeana, the Coyo is in the same group, along with Avocado sub species.
.
As the hardiest Persea, survive temperatures down to about −12 °C (10.4 °F), I thought that was probably the limit you could ever hope for with Avocado.
That is probably outside the scope of conventional plant breeding, but maybe not the more recent methods of gene transfer (from the hardy species),
or artificial chimeras of two species ?

In Australia there is a move toward much smaller Avocado trees, for picking and management purposes.

13
Tropical Fruit Discussion / Re: Hurricane Ian Prep
« on: September 28, 2022, 03:36:27 AM »
The coming Hurricane made the news in Australia, thinking positive for all who may be in it's path.

14
There are Avocado relatives in the broader Lauracea family in colder areas, most of these are still evergreens. Sassafras is said to be one that is deciduous.
In the Avocado genus Persea,  "none of the species are very tolerant of severe winter cold, with the hardiest, P. borbonia, P. ichangensis and P. lingue,
surviving temperatures down to about −12 °C (10.4 °F) "

15
You would need thousands, probably tens of thousands to get a mutation other than one that makes the plant weak.

Most known Avocado varieties in USA and Australia, particularly older types are chance seedlings of unknown origin.
ie Jalna, Zutano, Bacon, Rincon, Edranol (seedling of Lyon ), Sharwil, Hazzard, Hass, Millicent ( seedling of Mary Martin ), Reed.
That is an old Australian list, doesn't cover all the seedling types in Nth Qld, let alone USA or even Hawaii.
There has been deliberate Avocado breeding in Australia in the last 20+ years, but not much result ???

Yes Avocado seedlings can certainly be duds, low fruiting, long time to maturity, poor seed to flesh ratio, fruit prone to rot.
Yet even on this forum alone there are notable Avocado seedlings intro'd by members.
I would go as far as to agree that breeding Avocados is a big task and possibly a long haul project.

16
Bacon is probably the most cold hardy variety in Australia. It is recommended for Melbourne, Victoria in the far south and coastal areas around there.
That doesn't mean it won't grow well in hotter areas, early on it was a commercial variety, now replaced with mainly Hass types.
Seeds of this, or known cold tolerant types in cold locations are probably your best starting place, as there is probably less of a jump to increased cold tolerance.

I am not sure there could be a leap to deciduous Avocado trees ?
In Avocados there may be increased frost protection from changes to  leaf thickness, ( tougher ) plant inactivity in cold weather, ( semi dormancy ),
oils in leaves ( antifreeze ) etc. Tree shape may affect the way the plant sheds cold air, canopy density may affect insulation properties.
The foliage probably gives some level of frost protection, at least for thin branches and twigs for minor frosts.
There have been -10'C frosts here which devastated Avocado trees in the past.

Some Citrus relatives are cold hardy deciduous ( Poncirus trifoliata ). Cold hardy Citrus X Poncirus hybrids are not deciduous like Poncirus. Some may be semi deciduous, but seem to be cold resistant due to other traits inherited from Poncirus.

Another option may be Dwarf Avocado types, partly cold resistant, and more easily protected by frost cloths / structures.
There are also other Persea species, some may be more cold tolerant, some may be suitable as rootstocks ?

17
Happy to send a copy of the study that suggested it, if you like!
Not sure bout pagnr but I'd like to see the study. If you have a link to the paper it'd be great to post that here for posterity.

Yes the link would be great.

Also mixing the Captan with the Latex paint, how long does the application last / how long it is effective for ?
Did it send any plants over the brink ? I have noticed that with other fungicides, they can sometimes give up and die after a fungicide  application.

18
I spoke to the nursery where I purchased the “Australian Red”, the actual variety name is “Sanguinea”.

Ok, that seems a bit odd. Citrus australasica var sanguinea is an older botanical term for all red pigmented Fingerlimes.
(It ignores the other pigmented types, yellow, pink etc ).
Many Fingerlimes with red pigment would be var sanguine.
On the other hand there does seem to be a UC riverside fingerlime accession var Sanguinea, but the information is a bit confusing.
Maybe it traces back to a UC release ?
https://citrusvariety.ucr.edu/citrus/sanguinea.html

19
Citrus General Discussion / Re: Citrus macrophylla
« on: September 25, 2022, 06:27:45 PM »
Citrus macrophylla is not the most edible Citrus, I wouldn't say it tastes particularly bad, but it doesn't have a clean flavour like lemon or lime.
So far it seems pretty bomb proof, fruit hang on the tree for ages, don't seem to get attacked by anything.
C.macrophylla also seems to be fairly tough plant for rootstock use, and fairly vigorous.
Also I am interested in Papedas overall, so growing a few types even though some aren't the most useful fruit.
( I am in a Citrus growing area, so can get regular fruit types fairly easily most of the time ).

20
Tropical Fruit Discussion / Re: Foxfarm Ocean Forest potting soil
« on: September 25, 2022, 06:05:07 PM »
I had issues with Fungi fruiting in pine bark bases mixes.
Basically the pine bark was not composted before the mix was made, this allowed stage 1 organisms to colonise /dominate the mix.
Properly composted pine bark should be at a later stage, favouring different organisms.
You see yellow fruiting bodies, but underneath there is a mass of hyphae. Sometimes a low %, sometimes a large %.
Some of my pots were dominated by the fungi, lots of pinkish threads and a distinct smell.
Overall there is a balance between protection by the wood rotting fungi from other pathogenic fungi and competition for nutrients with your plant.
Also wood rotting fungi will break down the organic matter in the mix, shrinking the mix and changing the structure.
The issue went on for several years in those pots until the fungal balance changed, and the pot mix went to another stage.
For pot mixes based on pine bark, peat, coir etc there is a benefit to some slight composting activity in the pots, as it promotes healthy microorganisms and disease suppression.
If the hyphae become too dominate they can negatively affect live plant roots.
Using liquid feeds like compost tea, seaweed, fish fertiliser that promote other organisms may restore the microbe balance.
Topdressing with organic fertilisers that need to be broken down may also benefit.
If your plants are growing normally, and not showing signs of slower growth or stagnation, it should be ok.
Also as you say, environmental conditions are a major trigger to fungal activity.


21
Tropical Fruit Discussion / Re: Avocado variety identification
« on: September 25, 2022, 04:06:05 AM »
It looks like a nice tree. Sorry I cant ID it any further.
Are Avocado fruit available in shops or markets in Ludhiana ?
Maybe it came from where the fruit farms are ?
Maybe it is one of those types ?
What type of Avocado fruit can you buy in India ?Are they Local or Imported ?

22
Citrus General Discussion / Re: Citrus macrophylla
« on: September 25, 2022, 03:54:47 AM »
Those photos are interesting.
I am in the Southern Hemisphere ,right now my Alemow fruit is a bit bigger and light yellow colour.
A few early Citrus are also just starting to flower here now, end of September, early spring.
I am thinking your fruit is a lot greener than when I would pick mine.

23
Tropical Fruit Discussion / Re: Avocado variety identification
« on: September 23, 2022, 07:29:13 PM »
 
You can tell different Avocado varieties apart by the leaf shape and colour of new growth, and tree shape if you know what you are looking for.
It is hard question because we don't know the source of the grafts.
It could be a more tropical area to the south, a neighbouring country,
or an agricultural research station in your area.
It could be grafted from a unique fruiting tree in your area ?

Mexican varieties have anise scented leaves, so if it has scented leaves it is more likely a Mexican type or Mexican hybrid.

Other members might be able to guess what Avocado race the tree could possibly be ?

24
Citrus General Discussion / Re: Citrus macrophylla
« on: September 23, 2022, 04:32:56 PM »
Not sure about that, I guess you can get good seed out of green Makrut / hystrix fruit, another Papeda type.
As for macrophylla, I was not in a rush to eat them so I waited till they dropped / knocked off.
Unless you are rushing to sow the seed, maybe wait till yellow.
The fruit do seem to get full size and hang at the green yellow stage for a long time.
Maybe that is why it is popular in the Phillipines, holds well on the tree ?

25
Cold Hardy Citrus / Re: How to keep citrus alive in winter? Zone 8b/7
« on: September 23, 2022, 09:27:19 AM »
Various cheap clear plastic medium duty thick bags are available, such as 200 litre bin liners, to larger mattress protector bags from bed shops ( cost $2 each here ).
These are pretty cheap may to make mini greenhouse covers, for one season.
A 100 watt incandescent bulb ( old style) can be used inside a mini glasshouse etc to warm the air for frost protection.

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