Since last 15 days a moderate gummosis had been observed in my Orange farm. Please suggest remedial treatment for the same.
This will depend on the exact cause for the gummosis. This is just a term that refers to the excretion of sap, which can be caused by many issues including insects, fungal/bacterial infections, animal damage, etc. There are several diseases with gummosis as part of the name.
To remediate the gummosis, you will need to find what is causing it. Your local extension service can help. Here is a link to find the closest one to you: https://www.gardeningknowhow.com/extension-search
Here is one type of gummosis so you can see the treatment for it:
https://www.gardeningknowhow.com/edible/fruits/oranges/yellowing-orange-tree-leaves.htm
philipraju13@gmail.com
It sounds like Citrus Brown Rot. There are a few things that you can do to control this. Here is an article that will help: https://www.gardeningknowhow.com/edible/fruits/citrus/citrus-fruit-brown-rot.htm
My orange tree produces fruit every year but the orange skin cracks before they are ready to pick . And some fall to the ground with cracks in the skin.
Irrigation problems or overfertilizng are two reasons. This article will help you to figure out what is going on: https://www.gardeningknowhow.com/edible/fruits/oranges/oranges-splitting.htm
Is there a way to get it back to all juice oranges?
Are they bitter, or sour? If bitter, I'm not sure what is going on, possible nutritional deficiency and/or inadequate water or too much shade to facilitate photosynthesis of sugars.
Juice oranges in Arizona, like Valencia, are usually grafted trees. Sour orange (Seville) root stock is used because it is hardy and resistant to soil borne pathogens. The desirable orange variety is grafted on to the root stock and suckers originating from below the graft should be removed.
If the fruit is extremely sour, I suspect that what has happened is that a sucker or multiple suckers have grown up from below the graft, from the sour orange root stock and dominated a portion of the foliar crown. The only way to rectify this is to remove the stems that originate lower on the tree trunk, from below the graft. If the tree has matured with this anomaly, it may be best to do this in stages over a period of two or three years, so as not to remove more than 25% of the foliage in a one year period.
An alternative is to make marmalade from the sour oranges.
Hello ... I have 2 orange trees, not sure what type. One has smaller good oranges, the other huge, extremely thick pith - up to 1/2", dried up and yellow inside, the whole tree is like this, covered in giant bad oranges. Yellowing leaves and both trees have a lot of dead wood, so picking oranges now and will have the trees cut. Another question ... how much do I have cut off? Seems to me that a lot should be cut off giving them a chance to start over. The leaves curl and I took some to a local nursery, they said it is Thrip or something and I sprayed with Malathion or something, nothing worked I live in Phoenix AZ, with clay soil here and there, I give both trees 1/2 bag of feed 3 to 4 times a year, extra water in the summer. Any suggestions please, really appreciate it. Brenda
Your tree with the giant oranges may have been taken over by the root stalk - the tree the desired variety was grafted onto. Look for the graft and see if branches below it are producing the abnormal oranges. Everything below the graft needs to be removed.
Here is information on pruning, fertilizing and watering your trees. By keeping to these cultural chores, I think you will be happy with the results.
https://www.gardeningknowhow.com/edible/fruits/oranges/pruning-orange-trees.htm
https://www.gardeningknowhow.com/edible/fruits/oranges/growing-an-orange-tree.htm
https://www.gardeningknowhow.com/edible/fruits/oranges/leaf-curl-in-orange-trees.htm
Hello, I have 2 orange trees, not sure what type. One has smaller good oranges, the other huge, extremely thick pith - up to 1/2", dried up and yellow inside, the whole tree has fruit like this, covered in giant bad oranges. Both trees have yellow leaves and lots of dead wood, I am picking oranges now and will have the trees cut. Another question ... how much do I have cut off? Seems to me that a lot should be cut off giving them a chance to start over. The leaves curl and I took some to a local nursery, they said it is Thrip or something and I sprayed with Malathion or something, nothing worked I live in Phoenix AZ, with clay soil, I give both trees 1/2 bag of feed 3 to 4 times a year, extra water in the summer. Any suggestions please, would really appreciate it, thanks, Brenda
Your tree with the giant oranges may have been taken over by the root stalk - the tree the desired variety was grafted onto. Look for the graft and see if branches below it are producing the abnormal oranges. Everything below the graft needs to be removed.
Here is information on pruning, fertilizing and watering your trees. By keeping to these cultural chores, I think you will be happy with the results.
https://www.gardeningknowhow.com/edible/fruits/oranges/pruning-orange-trees.htm
https://www.gardeningknowhow.com/edible/fruits/oranges/growing-an-orange-tree.htm
https://www.gardeningknowhow.com/edible/fruits/oranges/leaf-curl-in-orange-trees.
htmhttps://www.gardeningknowhow.com/edible/fruits/citrus/citrus-fruit-thick-rind.htm
I live in a very hot part of Arizona and have problems with watering. Some say water and some say not too much and my citrus don't want to grow. They give fruit but not too many; what am I doing wrong?
This article should help with the water management:
https://www.gardeningknowhow.com/edible/fruits/citrus/tip-on-water-requirements-for-citrus-trees.htm