My tree tomato plant is drying up. What may be the problem and its management?
Is the plant in the ground or container? If containered, has it been allowed to dry out? If so, when watered now, does the water run right through? If so, soak the plant in a tub of water 6-12 hours. If the soilball has dried out and pulled away from the sides of the container, it will need to be soaked to expand to it's former size. It might also need a bit more soil.
If it isn't a water issue, is the plant in the sunshine (outdoor), or indoor? If indoor, it probably isn't getting enough light. Vegetables require a minimumm of 6 hours direct sun.
If it sin't a lighting issue, how old is the plant? Even though tomatoes are consideredd perennial in warmer climates, they do have a useful life span.
If isn't any of the above, you could have a pest of disease problem.
This article contains excellent information: https://www.gardeningknowhow.com/edible/vegetables/tree-tomato/grow-tree-tomato-tamarillo.htm
Wanting to bring the plant down so picking is easier, What is recommended leave 2/3 of tree taking 1/3 off?
Pruning increases fruit size, so in summer, trim some of those leggy growing branch ends back by 24 inches.
https://www.gardeningknowhow.com/edible/vegetables/tree-tomato/grow-tree-tomato-tamarillo.htm
Do i need to plant 2 tamarillo trees to suchess fully grow the Fruit?
No, you only need one!
https://www.gardeningknowhow.com/edible/vegetables/tree-tomato/grow-tree-tomato-tamarillo.htm
How and when do you prune a Tamarillo tree
You should be pruning these once a year. It is always best to prune when the tree is not actively growing... A time when it seems to be at a standstill. This article will give you more information: https://www.gardeningknowhow.com/edible/vegetables/tree-tomato/grow-tree-tomato-tamarillo.htm
Should I use fertilizer and if so which is the best one to use. Or is there something else that will give the best results. I planted the trees in a compost rich soil and bone meal was also worked into the soil before planting it. For some reason I'm growing the tropical punch (a fruit that is similar in shape and size as the tree tomato, however when ripe it tastes like sweet melon, guava and pawpaw) with great success but for some unknown reason I'm battling to get the tree tomato to bear fruit. I have one tree that's been growing for over 4 years, yet still no fruit. What am I doing wrong?
A balanced fertilizer (like 10-10-10) should be applied quarterly. They need plenty of water, but soil should be well draining, and they need full sun. In hotter climates they can take a little shade in the afternoon. Here is more:
https://www.gardeningknowhow.com/edible/vegetables/tree-tomato/grow-tree-tomato-tamarillo.htm