The lighting season is drawing to a close. The variable spring weather means some growers are continuing to use supplemental lighting for longer, but the increasing intensity of sunlight is making this less and less necessary. Attention is now shifting to irrigation: how much water to give, and is there sufficient water in reserve?
During my visits to the nurseries, I can see that the vines are looking good. The plants recover well overnight thanks to adequate cooling. However, ventilating in the morning is a challenge, particularly with an easterly wind and low outdoor temperatures. The low relative humidity demands extra vigilance — a plant can quickly become stressed. Partially opening the vents is therefore a good solution for several growers.
Using the screens was necessary during recent periods when outdoor temperatures dropped below 7 to 8 degrees, particularly to keep the energy needs manageable. By opening the screens early, the crop became active again — ready for the rising sun.
On the biological side, there is a slight increase in Crazy Roots, whitefly, Nesidiocoris, and in some cases Tuta. The results of pest control vary considerably from one nursery to another. Where old leaves have been removed from the greenhouse, I can clearly see better results. So cleaning up leaves pays off.
Mood in the sector — I notice there is an unmistakable fear of viruses. Understandable, as it is invisible and the consequences can be significant. A stricter hygiene protocol is a worthwhile step. But pointing fingers at other growers, without hard evidence, isn't helping. Rumours amplify commotion and anxiety, and that is the last thing the sector needs. We all must be careful not to let fear to take over.
Market — after a long period of pressure, we are finally seeing better prices for tomatoes, and that is sorely needed given energy costs. Yet the differences between growers remain significant. In my view, Dutch produce deserves more attention in the market. It is of very high quality and is also grown with the fewest crop protection products.
Looking ahead — uncertainty in the sector is holding back innovation. Business succession is complex, energy prices remain unpredictable, labour is scarce, and automation with a living product requires a long-term commitment. But amid all these challenges, we see the craftsmanship and dedication of our growers every single day. That positive energy is the driving force of the sector — and it is what will carry us forward.
Kind regards,
Marco van Noord
