Foundation ROL: Chain approach bulb treatment lily

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26 April 2021

The Dutch lily sector is a world leader and is at the forefront when it comes to sustainability and technological developments. Like other sectors, the sector is confronted with stricter requirements from customers, increasing legislation and regulations and an increasingly limited package of resources to tackle the increasing disease and virus problems. In addition, the market is placing increasing emphasis on sustainable cultivation. There is still a major challenge for the sector in making this more sustainable. This is where the importance of further research into the development and sustainability of the lily sector lies.

The intended aim of the project is a chain approach to the bulb treatment of lilies, whereby the risk of virus spread and the environmental impact is reduced while maintaining quality.

perceel lelie

Bulb treatment/disinfection is part of the strategy. Bulb disinfection is used in bulb cultivation to prevent numerous diseases. New bulb treatment techniques are implemented (bulb coating and flow foaming), prevention/limitation of PLAMV virus transmission, use of ECA water (electrochemically activated water) in bulb treatment shortly before plants.

The majority of lilies are treated by the dipping method before planting. The disadvantage of this technique is the contamination of the keg and the residual liquid that has to be discharged. A new method that will be used for bulb protection is the coating of the bulb as is carried out in the seed sector. The coating will consist of low-risk/green agents. An innovative development in which a minimum dose of active ingredient can provide long-term protection. Another new application method is flow foaming. The spheres roll through a layer of foam + chemical agents. The advantages of this application are: no residual baths, a tailor-made recipe, no or minimal contamination of the packaging and no spread of PLAMV virus via the immersion bath. In the first year, the new coating techniques and flow foams will be tested, as well as the use of ECA water for bulb treatment shortly before planting. In the 2nd and 3rd year, the chain approach will take shape from the harvesting of the bulbs (rinsing treatment, hot air treatment of planting material and bulb treatment shortly before planting). The basic principle is to maintain quality and minimize the risk of virus spreading.

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