The Tropical Fruit Forum

Beneficial insects were a lot more visible prior to the discovery of citrus greening disease than they are today, due to spraying. Research studies found that beneficial insects knocked down 80% to 90% of the Asian citrus psyllid population.

The naturally occurring peptide is found in HLB-tolerant citrus relatives, such as the Australian finger lime. The peptide has dual functions of inhibiting Candidatus Liberibacter asiaticus (CLas) growth in HLB-positive trees and activating host immunity to prevent new infections. Jin said it is rare for a treatment to achieve both of these functions. According to scientist  the peptide’s corkscrew-like helix structure is able to quickly puncture the CLas bacterium, causing it to die typically within half an hour.

Today, May 4, is National OJ Day.

https://citrusindustry.net/2021/03/22/growing-containerized-satsumas-under-screen/

A two year study by the University of Florida found  that citrus trees grown under 30% shade produced twice the yield of fruit than citrus trees growing under Florida's full sun.

According to research by Professor Vashisth of the University of Florida, insufficient water status limits fruit growth during the initial early stage of the young fruits development, immediately after flowering. This will cause fruit drop when the fruit matures. To minimize fruit drop, growers should focus on their irrigation and nutrient management practices. In particular, to prevent water stress beginning in APRIL (important). Water stress reduces the number of fruits and the eventual size of the fruit — and increases the likelihood of premature fruit drop.

Grafting Citrus Trees - Cleft Grafting a Citrus Cocktail Tree
Grafting citrus trees with the Patch Bud - Making a Fruit Cocktail Tree
Grafting Lemon Trees - Successfully Grafting Fruit Trees with the T-Bud
Grafting Orange trees - How To Graft a Tree by T-budding
Grafting Citrus With the Z Grafting Technique
Growing Citrus From Cuttings - Rooting and Grafting Citrus in One Step
Pruning Citrus Trees without Accidentally Killing Them
Ants on Citrus Trees - Organic Ant Control with Tanglefoot Sticky Barriers
How to Keep Ants off Fruit Trees with Liquid Ant Bait
Ordering Citrus Budwood for Grafting Citrus Trees
Grafting Citrus Trees Under a Microscope
Breeding and Growing Citrus from Seed to Overcome a Deadly Disease
Saving Citrus Trees by Removing Unloved Citrus Trees
Grafting Citrus Trees by Chip Budding in a California Nursery
Growing Citrus Trees From Seed - from Harvesting Fruit to Germination
Growing Citrus From Cuttings - How to Root Citrus Rootstocks
Dangers of Moving Citrus Fruit in California
Dangers of Moving Citrus Trees in California
Citrus Tree Care - Fertilizing Citrus Trees and Other Questions Answered by Dr. Ashraf El-Kereamy
Citrus Propagation and Disease in California - Your Questions Answered by Dr. Georgios Vidalakis
Asian Citrus Psyllids and HLB - Your questions answered by Victoria Hornbaker and the CDFA
Why does Huanglongbing (Citrus Greening ) Spread so Rapidly? Answered by Dr. Neil Roberts
Nasty Citrus Diseases that You MUST Avoid

All the above videos are by a friend of this forum by Dan Willey.

Studies of the resilient qualities of the Sugar Belle will lead to the development of a cultivar that completely resist  citrus greening. Sugar Belle's tolerance also positively impacts phloem regeneration.  Phloem is the tissue that serves as the plant's plumbing system  to move sugars produced in the leaves throughout all plant parts, from roots to fruit. HLB blocks the plumbing, but  Sugar Belle has a unique capacity to grow new "pipes" bypassing the plugged pluming.

https://citrusexpo.net/aiovg_videos/natural-compounds-to-help-in-the-fight-against-hlb/

If the video does not start at the beginning  put your mouse on the video and slide the time track back to the begetting.

The fruit on one branch of my in ground Cara Cara is producing fruit with orange flesh.  The cultivar Cara Cara originally begun as a limb sport of a Washington Navel orange tree in Venezuela , and has occasionally shown in some trees limb reversion back to the mother variety of Washington Navel orange.  Time will tell if this branch continues to produce blond fruit.  My tree is presently about 11-feet high and 12 feet wide and 15 to 20 years of age..

Vertical branches or vertical flushes are very vigorous with a lot of vegetative growth. Horizontal branches (up to 45°) produce most of the fruit and most of the quality. Weaker branches toward the bottom of the tree tend to produce less fruit and are more susceptible to disease.
Citrus Industry

This greenhouse is in your city (Perth)

https://www.freshplaza.com/article/171198/Australian-scientists-develop-first-clear-energy-harvesting-glass/

1 seed only. If anyone wants to grow a Xie Shan seedling.