The Tropical Fruit Forum

lebmung, you don't cover your seeds with a laver of the medium?

yes 0.5 cm
germination rate over 90% at 80-90% humidity and 27C, never peel them off, two weeks prior sowing I make a shock treatment 20 degrees temperature variation, in 1 year they reach 25-30 cm high, if grown with lights during the winter they can reach 50 cm at the end of one year.

Quote from: lebmung on November 28, 2019, 07:15:44 PM

Millet i agree with you with hose but after the spray so those don't spread around.
Agaist scale I tried many commercial l inceticides systemic or contact, none worked.
Scale need to be suffocated.
The best formula I found was 3% neem oil and 2% millettia pinnata oil mixt with a surfactant.
They die next day. This mix is good only during the winter, in summer it will burn the tree.

So the only thing that should really work is neem or other oils. With temps around 45-70 °F it shouldn't damage the tree, right?

Up to 21 C it will not damage the trees. Over that temperature tender tissue will brown.
Not any oil will kill them. I just tell you what it worked for me and tested on my trees.
It will kill scale of any type including the red Californian scale which is very difficult to kill. It's also preventive measure for other pests for winterizing.
If you can't find these oils including the surfractat which is very important maybe I can help and send you.

Never use garden soil on mangoes in cold climates. I grow many varieties. Rootstock is very important that will make your tree successful or not, the way of root pruning and grafting method as well.
You can start a potting mix by 50% sand river, 10% perlite, peatmoss 25% and coconut husk 15%.
If you grow a mango from a store bought fruits, I would unfortunately say it's a waste of time sooner or later it would die.

You could use an interstock to take lemons, but I just think it's too much trouble.

Water will not solve the problem. Try neem oil at 3% if you still want to eat the fruit.

Really impressed with the growth rate of Gomera
Gomera-1 : 20-40% are zygotic, 5% tetraploids
25 cm high in 3 weeks after sprouting at 17-23°C

From the picture it doesn't seem to me so alive

In shops there are those Bio/Organic Italian 100% lemon juice, or even Japanese Yuzu juice.
On the ingredients they say 100% juice, no chemicals added so no preservatives.
How do they preserve the juice?
Hihj heat treatment? In this case vitamin C an half of flavonoids are dristroyed.
How can one preserve the juice naturally?

Dekopon is a late ripening mandarin. In your climate because of high temperatures the mandarins don't get fully orange. But because you are in the northern part of the country where there is some cold temperatures at night like 6-12 C during winter some coloration happens.

Indonesia has different climate zones with mountains and plateaus. On those high plateaus they have warm temperate climates with temperatures dropping to 5C or even minus. Once I climbed to 3000 m altitude In Bali and I could see that every 1000 m there is different vegetation, and on top of the mountain quite cold.

Maybe you should wait more in Japan the are done in Dec-Mar for you maybe earlier one or two months , but don't expect your mandarins to get the same color like there.

Last year I saw an orchard in northern Laos in a mountainous area not far from you, with very healthy and ripe mandarins. Also very little diseases due to its remote location. Because of colder temperature they were very sweet, juicy and orange.

Frank virtually any mango can be dwarfed. There are dwarf mangoes like Falan or moderate growth like Irwin, and others. Still Irwin is not good as a rootstock. I am testing Falan seedlings and see progress under cold and containers, ask me from time to time.

It's about the method of dwarfing the roots, such as trimming the tap root at the right time and promote adventitious root, but I tell you in your zone mangoes are difficult to grow in the first 3-4 years.

Its juice is used by Japanese women to burn fat. It's scientifically proven in several articles that it does so.
It's found in shops as 10% beverage. Harvest is done before it gets yellow.
In Japan there is a Fanta flavoured with Shiikuwasha.

Quote from: Ilya11 on November 24, 2019, 04:28:43 AM

Quote from: lebmung on November 23, 2019, 06:07:44 PM

From what I have seen there, I checked many nurseries from south to north, most of the citrus is propagated from air-layering, especially limes, which are resistant to high calcareous soil.

Limes are very sensitive to high pH.
I think that under high temperatures and abundant rain of tropics  ash  is rapidly removed from the charcoal.

I repotted my new pomelo's and 3 out of 4 were in pure charcoal.

Next time i'm in that wholesale nursery i'll check the soil of the limes....

"Most soils in Northeast Thailand are sandy and acidic (pH 4.0 in CaCl2), with high rate of drainage."

Perhaps that's why they use rice hulls charcoal over there to lower the pH.

But as I recall I measured the pH in plastic bags in a Thai nursery and it was quite acidic pH 5-6 and it was with charcoal.

https://swfrec.ifas.ufl.edu/hlb/database/pdf/00000372.pdf