NL: New infection brown rot confirmed in roses

The Netherlands food and consumer product safety authority (NVWA) has confirmed that brown rot or ralstonia has again been detected at a cut rose company. When samples of irrigation water and plants were sampled, there was a suspicion of contamination. At the time of completion of the first part of the analysis, the status of the samples was moved to 'pending plus', and the company was documented by the NVWA to prevent possible spread of this quarantine bacterium.

Image: LTO

Now that Ralstonia solanacearum has actually been detected, the elimination scenario immediately comes into effect and the crop has to be disposed of in a phytosanitary way under supervision of the NVWA. In addition, the NVWA has started an investigation into tracing the original source of the infection. It is very important for the sector to know whether this is a new contamination or a recontamination. The relationship research shows that there is a direct relationship with the ralstonia found in 2015/2016 at the rose farms.

This concerns Ralstonia solanacearum variety 1, a tropical variety that has many host plants including tomato, pepper, eggplant, tail-flower, gerbera, turmeric, geranium and rose. It is therefore important for the entire greenhouse horticulture to prevent further spread of the bacteria within the company and also within the (greenhouse) horticulture.

Stay alert to this bacterium and also make clear arrangements with your plant supplier. Together with Plantum we are working on a Plant Select system to realize more closed chains in plant material for cut roses.

Source: LTO Glaskracht Nederland