What should I do with sap on an almond tree when one side of the tree has died?
You may have tree borers. This article may help:
http://www.ipm.ucdavis.edu/PMG/r3300911.html
How should I prune an almond tree?
These articles will help you:
http://cestanislaus.ucanr.edu/files/111772.pdf
http://cekern.ucanr.edu/Custom_Program485/Almond_Tree_Pruning/
Why do almond trees some years hardly produce any almonds, and what do you advise to correct the situation? Subject trees are planted above 1, 500 feet. It is very cold sometimes, especially in December.
This article discusses how to properly grow and care for Almond Trees https://www.gardeningknowhow.com/edible/nut-trees/almonds/growing-almond-nut-trees.htm
Hopefully, you can determine the answer to your questions from this.
In your article on almond trees it said: "When growing almond trees, it is helpful to know that the trees do not tolerate wet soil" but then you said that: "Drip irrigation should be initiated daily with the trees needing 2-3 inches of water." Does it mean 2-3 inches per day, or week, or month? We have a good loam soil.
On average, this and most other trees benefit from having a couple of inches of water per week, with additional water as need in times of drought. However, newly planted trees require daily watering until established. So, if it's already an established tree, you would simply water weekly in the absence of rain, whereas newly planted trees would need to be watered daily (here is more info on that: https://www.gardeningknowhow.com/ornamental/trees/tgen/watering-newly-planted-tree.htm
My year old almond tree is losing leaves and looking unhealthy. First the leaves began to turn yellow, then brown, and then began to fall off.
Hope you don't think I'm nitpicking, but I don't see how you could be in zone 2, and be growing an almond tree. Even hardy almond, which is an ornamental, is only hardy to zone 5. If you're truly in zone 2, I'd love to know what kind of almond you would even attempt there. More information on USDA hardiness zones can be found here: https://www.gardeningknowhow.com/planting-zones/usda-planting-zone-map.htm
To return to almond trees, yellowing and dying leaves might be caused by a number of things
such as too much or too little water, soil problems, too little light, insects, or disease. This article goes over the most important things involved in raising healthy almonds: https://www.gardeningknowhow.com/ornamental/shrubs/colletia/growing-almond-nut-trees.htm
If you have a county extension service nearby, you can take some leaf samples to them to see if they can identify your problem. This link will help you locate the nearest office: https://www.gardeningknowhow.com/garden-how-to/info/what-is-extension-service.htm
My house is at Ernakulam, Kerala State, India. Where do I find one and will it grow?
Do a Google search for 'Almond Tree". You should be able to locate a source that can ship to you.
You may want to try Ebay. Check the sellers feedback to make sure they are a reputable seller.
https://www.gardeningknowhow.com/ornamental/shrubs/colletia/growing-almond-nut-trees.htm
I planted a almond tree about 2 weeks ago ! It was a good size tree at about 4 feet tall ! It came in a 15 gallon pot ! I noticed that some of the leaves are turning yellow and falling off ! The temperature here has been in the low 90s ! It gets about 8 hours of sun a day ! I'm wondering if maybe I'm watering it too much? I read they need a good amount of water when it's hot! Or maybe it's transplant shock !
This link has planting and care information.
https://www.gardeningknowhow.com/edible/nut-trees/almonds/growing-almond-nut-trees.htm
Yellowing leaves do indicate a watering issue. Make sure the soil is moist, but well draining.
Daily watering is needed for the first 2 weeks, but with extreme heat and wind, you may need to water more throughly and longer.
3 to 4 inches of hardwood mulch will help with moisture retention, but you will need to keep the mulch away from the base of the trunk.
https://www.gardeningknowhow.com/ornamental/trees/tgen/watering-newly-planted-tree.htm