Category Archives: News

Coffee in three continents

2012-11-28 CoffeeExperiences in three continents (Africa, Asia and Latin America) since mid 1960ies have shown that NORDOX product efficacy is high as a preventive treatment against important Coffee diseases.

Coffee Leaf Rust (CLR) Hemileia vastatrix and Coffee Leaf Spot (CLS), Cercospora coffeicola, are controlled with rates from 1,5kg -2,4kg/hectare per application of our 75% copper containing products.

Coffee Berry Disease (CBD), Colletotrichum kahawae, is normally controlled by 3,8kg/NORDOX 75% copper in East Africa.

NORDOX is quite reliable in the control and outperforming the rest of the copper-based fungicides in the control of this important disease. Often NORDOX 75% Cu products are mixed with chlorothalonil with rates; 2,2 kg NORDOX (75% Cu) + 2 liters of chlorothalonil pr hectare.

South American Leaf Spot Mycena citricolor (or “ojo de gallo”), and Black rot Corticium coleroga (“mal de hilachas”) can be controlled with dosages of less than 2kg/ha of NORDOX 75% Cu products.

Bacterial Blight of Coffee (BBC), Pseudomonas syringae pv. Garcae, is now increasing. We have started evaluating the effect of NORDOX. We have seen the

stronger suppression of bacterial diseases in other crops like, Stone fruit, Pome

fruit, Citrus and annual crops like tomatoes and peppers from NORDOX compared to

products with other forms of copper.

An extra important advantage of using cuprous oxide on coffee is the so called ‘tonic effect’ for coffee trees, provided by copper in its role as an essential micronutrient. Copper fungicide sprays achieve this tonic effect that leads to the general performance of the tree by extending leaf retention and therefore boosting tree growth and yield.

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Alternaria in Citrus (Brazil)

A recent study in Brazil showed that NORDOX Cuprous oxide (Redshield 750 in Brazil) was the only copper that controlled Alternaria in Citrus. The cultivar was Murcott. Dosage 1.0-1.2 kg/ha, 2000 litres/ha. Did you like this? Share it:Tweet Continue Reading

NORDOX celebrates 50 years in 2012!

NORDOX was founded on February 8, 1962 and consequently we proudly celebrate our 50th anniversary this year. The roots of the company are however more than 100 years old. The origins of NORDOX go back to 1886, the founding year of the NORDEN paint factory specializing in cuprous oxide based antifouling paint for the fishing… Continue Reading

Citrus in South America

On our last visit to South-America, we learned that Citrus growers are discovering the benefits of copper oxide in the fight against citrus canker (Xanthomonas axonopodis) as they experience that this the most effective copper product against this disease. There is a change from other copper products to copper oxide in citrus. There are several… Continue Reading

Citrus in Australia

Experiences from Australia shows that NORDOX is outstanding in treatment against citrus diseases such as Black Spot (Guignardia citricarpa), Melanose (Diaporthe citri/Phomopsis citri), Lemon scab (Elsinoe fawceti), Septoria Spot (Septoria Citri), Phytophtora brown rot (Phytophtora) andAnthracnose (Colletotrichum gloesporiodes). The «aussies» have concluded that a high quality product like NORDOX gives less stippling and efficacy against… Continue Reading