26 Aug 2020

2019–2020 Florida Citrus Production Guide: Plant Growth Regulators

Plant growth regulators (PGRs) are a tool used to manipulate vegetative and reproductive growth, flowering, and fruit growth and development. PGRs have been successfully used in agriculture for decades to amend plant growth characteristics and maximize yield and thus grower profit. Foliar-applied PGRs are routinely used in various fruit crops for flower and fruit thinning, improving fruit set, growth and development, controlling vegetative growth, and reducing fruit drop. Citrus is no exception to the use of PGRs, which can provide significant economic advantages to citrus growers when used appropriately.

According to the Florida state legislature, PGRs are defined “as any substance or mixture of substances intended, through physiological action, for accelerating or retarding the rate of growth or maturation or for otherwise altering the behavior of ornamental or crop plants or the produce thereof, but not including substances intended as plant nutrients, trace elements, nutritional chemicals, plant inoculants, or soil amendments.”

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29 Jul 2020
Green Mold

Bacillus sp. w176 against postharvest green mold in citrus

Citrus is one of the most important fruit crops in the world, and they are particularly susceptible to postharvest damage before they reach the market for fresh consumption after storage. Green mold caused by Penicillium digitatum is considered to be the main postharvest pathogen of citrus fruit with up to 60–80% decay under suitable environment conditions.

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29 Jul 2020
Lemons on Conveyor

CBS detections will bring changes for future Argentinian lemon export campaigns

As of July 1, the suspension of Argentinian fresh lemon exports to Europe came into force following several detections of black spot in some shipments upon arrival at European ports.

“In the last two weeks, the number of black spot detections has skyrocketed, so we believe that this has been a correct and necessary measure. As a sector, we have to find where the problem is in order to solve it. We are concerned about what has taken place this campaign, but we are even more concerned about what is to come. That is why I think Argentina should soon review the lemon export protocol for Europe. It is clear that this situation will bring changes and adjustments for future campaigns,” says Francisco Rotella, commercial director of the Argentinian lemon producer and marketer Citrusvil.

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29 Jun 2020
Cover Crops

Can cover crops save Florida’s citrus?

Citrus greening has devastated the Sunshine State’s orange industry. Researchers and pioneering farmers see cover crops as a road to recovery.

For the last couple of decades, a tiny insect called the Asian citrus psyllid has fed on the stems and leaves of the orange trees in Florida, infecting them with bacteria that cause a lethal disease called citrus greening. The bacterial disease, huanglongbing (HLB), originated in China and has destroyed 90 percent of the state’s groves, devastating its $9 billion citrus industry.

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26 May 2020
Citrus Export Covid-19

Strong demand for SA citrus at start of 2020 export season

A strong increase in global demand for citrus has so far been evident in the 2020 export season, according to Justin Chadwick, CEO of the Citrus Growers’ Association of Southern Africa.

In a statement, Chadwick said increased global demand for lemons had resulted in 4,5 million 15kg-equivalent cartons being shipped to date. This was double the 1,8 million cartons exported during the same period in 2019.

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27 Feb 2020
Soil Health

Soil Health in Orchards

Orchard soil health, or soil quality, is the capacity of soil to support productive trees over time without negatively affecting the surrounding environment. Soil health is influenced by interacting biological, physical, and chemical properties of soil. Active soil biological communities mineralize nitrogen, create soil structure, and compete with plant pathogens. Physical properties of soil determine its ability to store and release nutrients; accommodate water entry, storage, and movement; provide sufficient oxygen for roots and microbes; and moderate environmental stress. Chemical aspects of soil health include nutrient presence and availability, pH, cation exchange capacity (CEC), salinity, and the presence of any contaminants, such as heavy metals or persistent pesticide residues.

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27 Nov 2019
Endulini Fruit

Endulini Fruit introduces biological pest control in citrus

Consumers, and consequently supermarkets, demand products free of pesticide residues and with much of the citrus produced by Endulini Fruit being exported to Europe, the European Union Directive 2009/128/EC, which aims to reduce the risks and impact of pesticides on human health and the environment, has led to the popular citrus producer using softer pesticides and introducing biological pest control.

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31 Oct 2019
Cover Crops

Citrus Grower Sees Success with Cover Crops

Ed James has citrus in his veins. He has been working and thriving in the citrus business since he was a teenager — from hoeing orange trees to owning a caretaking business that serviced thousands of acres. That is, until about eight years ago.

In 2010, James looked around his personal 45-acre citrus grove and realized it was time to throw in the towel. The citrus industry in Florida had gone from over 800,000 acres to less than 400,000 acres. Citrus greening was the main culprit, but there were other factors for the decline. For James, it had just become completely unprofitable. The trees looked stunted and almost dead from foot rot, Diaprepes root weevil and HLB.

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26 Sep 2019
Greater varieties

South Africa wants greater varietal spread of citrus & table grapes in Japanese trade

Carolize Jansen

A recent visit to Japan for the annual Tokyo International Conference on African Development (TICAD), which was joined by the Citrus Growers’ Association at the behest of President Cyril Ramaphosa, provided the association with a salient opportunity to address some nagging aspects of fruit trade with that country, as well as to press the fruit industry’s interests.

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