The Tropical Fruit Forum

I used to have a large in ground Bizzarria orange tree (6-ft.tall and 8-ft wide) It produced a lot of fruit, but the only thing one can do with the fruit is look at them.  I finally chopped the tree out and replaced it with a Red Grapefruit.

Have you ever pulled the tree from the container and examined the roots?

Covering the entire root ball with the medium, has nothing to do with the purchased water table.  Looking at the picture again, it certainly looks like the container is not completely filled. 

My guess all  the trees that cannot stand on their own roots were transplants, that were not planted properly,  For now stake them up.

 
Jim Rogers
Jun 29
The 1,000th tree okayed for growing by California’s Citrus Clonal Protection Program happens to be California's oldest orange variety in the state. Dubbed the Mother Orange Tree, Bidwell’s Bar is a sweet Mediterranean orange brought to California from Mazatlán, Mexico, and planted in 1856. It was first planted near the Bidwell Bar Bridge near Oroville.
 Georgios Vidalakis, director of the Citrus Clonal Protection Program, poses with the Bidwell's Bar orange tree. (Photo by Stan Lim, UCR)
The tree’s survival skills are some of the reasons Tom Delfino, former California Citrus Nursery Society director, recommended it for the protection program. “Apparently this variety is very rugged,” Delfino said. “Not only has it survived a lot of cold Northern California winters, but the tree has been dug up and replanted twice — once to protect it from impending flood, and again to make way for the Oroville Dam.”
By suggesting Bidwell’s Bar for approval, Delfino was hoping the protection program would clear it so he could buy its budwood. On the occasions he has visited the original tree, Delfino said the fruit in reaching distance was always gone. “I think it must be tasty because locals grab it for themselves,” he said. “Makes me even more eager to grow and eat my own.”
Delfino also hopes that this variety will catch on with commercial growers. “My thought is our citrus industry is concentrated in the southeastern San Joaquin Valley and is subject to a number of pests that like the warm climate there,” Delfino said. “Though this has seeds, which may be a deterrent, it can be grown in colder areas that discourage some of those insects.”
California’s oldest orange tree arrived in California nearly two decades before the better-known Washington Navel orange grown by Eliza Tibbets in Riverside. “Bidwell’s Bar is an example of what was grown in California before the Washington Navel came to dominate,” said Tracy Kahn, curator of the Givaudan Citrus Variety Collection at University of California, Riverside (UCR).
Kahn says it’s important to preserve the genetic material from a tree with such significance to California. “Some people were worried it was going to die, but now we have an officially cleared source of this historic tree, and it is protected for future generations,” Kahn said.
The Citrus Clonal Protection Program, housed at UC Riverside, is the first of its kind in the world. It began in the 1950s, and its scientists spend up to three years testing and clearing citrus trees of disease so they can be released to commercial and private growers. By law, every citrus tree newly propagated in California can be traced back to one mother tree created at UCR through the protection program.
Source: University of California, Riverside

Citrus Magazine
 

Bret, long time no see.  Welcome back.

Mother Orange tree.   In 1856 Judge Joseph Lewis purchased three sweet orange seedlings from Jesse Morrill in Sacramento, California, and these were planted in the vicinity of Oroville, California in Butte County. One of these trees was planted at the west end of the famous suspension bridge at an area known as Bidwell's Bar and is still living and bearing large crops annually. It has come to be known as the Mother Orange Tree, and is now apparently the oldest and largest living orange tree in California.  Measurements made by an official committee on November 27, 1926, gave the size of the tree as follows:  Height 33 feet 6 inches, spread of top 31 feed 5 inches, circumference of trunk one foot from the ground 66 inches.  The tree is still alive today.

Taken from the book The Citrus Industry  Vol. 1 1943










 

Definitely not a pure Yuzu.

As far as cupping, your tree looks normal.  However, your tree looks greatly underfed.  How often do you fertilize the  tree?  Also what is all the white stuff on the fruit and leaves. -It could be mealy bug.

Many times it is a watering problem.  When the tree is parched and receives a lot of water, it absorbs the water so fast the fruit expands rapidly and the fruit splits.  Try keeping the root zone evenly moist.

No not citrus greening.  Many of the leaves are just showing that they are old.  A citrus leaf has a life span of 18 months.  How often do you fertilize your tree, and how old is the tree/

A tree that size without bloom must be a seedling grown tree.  Normally 7 - 9 years from planting to bloom for your seedling tree.