I have a dwarf lemon and an orange tree kept in pots that are 12 inches across. The trees are over 40 years old. I live in NY and have to bring them in each winter. I would like to know what type of fertilizer I would use on these small trees and how to apply it, as well as when. The orange tree has fruit that is the size of a large marble.the lemon tree has round fruit that is mellow to the taste. It also has a very thin rind. Do you have any idea what kind of trees these are? These were my mother's.
This article will help you with fertilizing:
https://www.gardeningknowhow.com/edible/fruits/citrus/fertilizing-citrus-trees-best-practices-for-citrus-fertilizing.htm
I suspect that the orange is a calamondin and the lemon may be a meyer. They would fit those descriptions.
My orange tree is losing its leaves. It was extremely hot last summer (I live in Tucson) with no rain. The crop was smaller than usual this year and we had lots and lots of rain this winter and colder than usual. There seems to be lots of blossoms but the leaves are falling.
Citrus trees are funny like that. They will hold onto leaves while not getting enough water but will drop their leaves after a dry period when the water returns. The tree can recover though. Here is more information:
https://www.gardeningknowhow.com/edible/fruits/citrus/leaves-falling-off-citrus-tree.htm
What do I feed the orange tree and the grapefruit tree to ensure that the fruit is sweet? Does the same fertilizer work on peach, apricot, and nectarine?
This article will help:
https://www.gardeningknowhow.com/edible/fruits/citrus/fertilizing-citrus-trees-best-practices-for-citrus-fertilizing.htm
A balanced fertilizer like 10-10-10 or 20-20-20 will be fine. Follow the directions on the package when applying, simply because different manufacturers have different application directions. Most home and garden centers will carry them. If possible, find a citrus fertilizer (you should be able to find them at garden nurseries) which will also make sure that micro nutrients are supplied.
I have oranges (Valencia, Washington Navel, Blood) and lemons (Myers). The leaves on all the trees, especially the oranges, are yellow. I fertilize with regular citrus food from Lowe's, but it does not seem to be helping. What type of fertilizer do I need and how often do I use it to green up my trees (they are deep watered one time a week)?
I would have your soil tested. Yellowing of the leaves is typically either an iron or nitrogen deficiency. Since you fertilize with a regular fertilizer, I will guess that it is iron, which is not always included in regular fertilizer. This article will tell you more about iron deficiency: https://www.gardeningknowhow.com/plant-problems/environmental/leaf-chlorosis-and-iron.htm
I planted an orange three years ago. It bloomed a lot but seldom gave fruit. What's wrong, and can you tell me what should I do to correct it?
It sounds like a pollination problem. These articles will help:
https://www.gardeningknowhow.com/garden-how-to/beneficial/insect-pollination-process.htm
https://www.gardeningknowhow.com/garden-how-to/beneficial/creating-a-pollinator-garden.htm
It sounds like it may be suffering from a lack of water. If it became over dry for a period, then it would react this way. Or if there is a problem with the roots, this could also cause this.
If the watering issue is corrected and the stems are still alive, the tree will recover. These articles will help you:
https://www.gardeningknowhow.com/plant-problems/environmental/how-to-tell-if-a-plant-is-dead-and-how-to-recover-an-almost-dead-plant.htm
https://www.gardeningknowhow.com/edible/fruits/citrus/leaves-falling-off-citrus-tree.htm
https://www.gardeningknowhow.com/edible/fruits/citrus/tip-on-water-requirements-for-citrus-trees.htm
A hard back ant (batchac) is eating my orange leaves. How do I get rid if it?
This article will help you:
http://www.blueboard.com/leafcutters/control.htm