The Tropical Fruit Forum

My grafted white sapote was doing good up until now, it started shedding its leaves, but whats more unusual is that they are dropping dark green and healthy looking. There is a slight trace of spider mites, but very minor, dont think they are the couse. The soil is moist, not dry or saturated. Temperatures have been between 10 and 25-30 C. Humidity varies between 50 to 90 percent, drops in daytime when i vent the greenhouse, on sunny days, which i have observed makes some of the plants wilt a bit, including the white sapote.
Have sprayed with green kristalon yara brand, two weeks ago, which did burn some of the plants a bit, but the problem has only come out now. Cant really even quess whats going on, as the leaves that are falling look healthy and not burned....
Any quesses?

My plant is around 4 years old, i really hoped for it to do something this year, and it did not dissapoint. The blooms are very slow to come out, and the pictures arent quite clear at this point, but i am sure it will bloom. From the looks of it, there will be at least 2 blooms , and the plant will probably terminate its growth right there, as a growth bud is waking up, right below the future blooms. Hope it makes a cluster of blooms, as ive seen such pictures online. In one of the pics ive circuled the future flowers. 
 

I got this, with the intention of using it on my tropicals, inground. Read it elevates the soil's ph, should i use just a little bit every now and then?

At first i thought it was to be a peruvian apple, but the pictures online do not match the plant in question. Can someone identify if for me , thanks a lot !

Hi, what does this look like to you? The problem with the new leaves arouse in last fall, strugles to make new leaves, and if it does, they are sickly looking and die shortly after. Havent been fertilized , the first feed was 2 days ago.
The old foliage is mostly undamaged, the plant has seen some low temps, at the minimum of 2-3 C, but the problem with the new leaves was prevalent from their start, which was sometime in late summer last year, when it wasnt cold. I am not entirely sure about the time frame,  in which this occured  though.  Another hint i thought of is that the very last leaves were/ are a lot curlier and wavy , compared to the previous ones. Any clues?

I just got this macadamia, the plant is exceeding 2 meters in heigh, not grafted i suppose, did not see any graft scars. The leaves are quite prickly, at the base of the stem i found a falf buried shel, suppose its from the seed that the plant was grown from, as it has the right shape.
So now that i know that the plant is a seedling, will i be able to get it to fruit on its own? I will plant it in my greenhouse , inground, heated in winter. My main concern is if it would be able to bear without a companion?

I think this is the species of aphid, that is wrecking havoc in my greenhouse right now. I am looking into using a bio grade product called Naturalis, which contains a strain of a flesh eating fungus called Beauveria Bassiana. On the product, it does not mention whether it could be used and is effective on whooly aphids, i wonder if i should use this , or go whith a unnorganic pesticide instead?
They do not even blink when i use neem oil, i feel like i am applying sun tan on them. I have quails in the greenhouse, because of which i not to use strong chemicals, but i do use them as a last resort.
Has someone used the above mentioned product, on wholly aphids? I would like to hear your experience with it, as i am a bit worried on introducing this fungus into the greenhouse system.
As a side question, how do you control whooly aphids? 

Hello, as my mountain papaya plants have outgrown their place highwise, in the greenhouse, i want to air layer them so i lower the heigh and hopefully get a new plant for pot culture, which should be a more campact of a grower. I found several videos on youtube , of how people get papaya plants to root at various heights on the stem, so i will do this method .
Have all the materials and will set them airlayers today.
Has someone here on the forum tried this technique?
Here is a link to one of the videos.
https://youtu.be/xzluU6GM390?si=IiWU8RqbC_FZRnoY

My cherimoya trees did not flower as profusely as last year, i did a defoliation and a slight prune kinda late, at the end of july, one of them did not produce a single flower, 5h3 other one had around 20. They are big plants and did had a very strong flower flush last year, when one of them set 50 fruit, the other one had 3.
The only thing i can think of ,that was different pas winter, was that i did the heating system in the greenhouse, which ended up very eficient at keeping the lowest temp in there at around 10-15 C ,most of the time, whereas for the winter of 2021-22, i had a sloppy heating system that kept the lowest temps anywhere around 5-10C, sometimes colder. The summer after this first cold winter for the plants in the greenhouse, that is when they had the strong bloom, after a defoliation and pruning in june.

Now i do have alot of controw over the temperature in the greenhouse right now, curntly i havent yet  turned on the heating system, because of the cherymoyas, in hopes of letting them accumulate a bit of chill hours. I dont know how long should i maintain low temperatures in there, today i had 6.2C inside, i do have other more tender things in there ,thats why i wonder if the weak bloom was because i kept it too warm for them over winter, or maybe it was due to the late prune and defoliation that i did?
Anyone growing cherimoya in a tropical place, where you dont get temperatures  below 10C and are still able to fruit cherimoya?

I have 3 Vasconacaela Pubescens plants, planted in one hole. The biggest of them has theese flower clusters, to me they look like a hermaphrodite tipe flowers. Can someone with more experience tell what gender would those be? I dont know if this species is like the regular papaya, gender wise?

My plants have quite a few flowe buds right now, i wonder if i should remove a few, there are some branches with more than 2-3 on them, in close proximity.
One person suggested i should leave no more that 2 per branch. I really dont want to remove any as i dont know which one could be succesfull at hand pollination. The first 5 flowers all set fruit, the second 5, on both plants, sll aborted, despite the mix of pollen between the 2, my mother pollinated the failed ones. I wonder what went wrong with those....
Anyway, i would like to keep them becouse of having more potential for fruit .
The set fruit from the very first flowers are also visible.

I made a trellis/support for 2 of my dragon fruit plants, megalanthus seedlings, grafted onto undatus.  I used a pvc pipe, as a base i casted cement, which extends also up into the pipe itself, i also used some metal sticks for an additional strength.  So does fresh cement work well with pitaya roots? I mean, being so freshly casted, will it affect the plants if i happen to use it tomorrow?
I want to repot and change some of the soil of the plants, will add better draining one, also want to place them on the new trellis as i just saw that  they have their first flower buds, i need to make the plant a bit more compact so i can put it into the greenhouse, so that those buds have a chance. Its getting colder outside.
I would've left the cast to cure, but i am preshured right now, so want to use it now. The plants will be in a pot.

I started theese over winter, i bought seeds for carica pubescens, that was the label. The seeds had some differences with the standard papaya seeds, visually. They were a bit more elongated, kinda pointy at both ends, also the ridjing on them was not as pronounced as on regular papaya seeds. They were bigger seeds too.
The plants are fuzzy, only upper surface of leaves is not, the central stem is also quite fuzzy, when younger.
I am seeing some young flower clusters on the biggest one, they contain around 5 individual flowers, as far as i can see, for the moment. Leaves also have a bit of an protrusions on the upper part of the leaf, right where the leaf connects to the petiole.
I am not sure if they are the species i bought seeds for, since pictures on the web show a bit different leaves, not as serrated, slender and pointy.