In onions, almost all harmful nematodes can cause problems, with the exception of the cyst nematodes. Onion is a vulnerable crop, a significant nematode infestation can lead to eaten roots or even a completely destroyed crop.
For export to Indonesia, for example, it is required that the plot is free of stem nematodes. A specific investigation can be carried out for this, again an official statement can be obtained if the plot is found to be free of stem nematodes.Read more
A timely and certain diagnosis is especially important when it comes to fungi. In a number of cases, a preventive examination may also be relevant. For example, when it comes to white rot in onions. Especially in a sensitive crop such as onions, fungi can have a devastating effect in cultivation and storage. Preventing problems and playing it safe is important.
For first year onion plants, it is required to have a declaration that a plot is free of stem elm and white rot. A specific investigation can be carried out for this, with which an official statement can be given if the plot is found to be free of stem nematodes and white rot.Read more
Insects are a major challenge in the cultivation of onions. De Groene Vlieg has developed various monitoring systems for this. In addition to monitoring, the onion fly can also be controlled using the Sterile Insect Technique. More information can be found on the website of the Groene Vlieg.Read more