Home ​​​​>​​​​ Knowledge Center​​​​

Case study

Efficient distribution of predatory mites with UniMite Slider in cucumber
In the Middenmeer greenhouse area, Red Harvest grows 45 acres of cucumbers and tomatoes. Leon Vis has been with Red Harvest for 11 years and plays an important role in organic crop protection as team leader crop protection. Since last year, he has also been responsible for the cultivation in two greenhouses. “We are always looking for efficient and sustainable solutions to keep our crops healthy,” he says. 

The project in brief

 Installation of UniMite in cucumber cultivation
 Better distribution of predatory mites
✔   Efficient solution for biology distribution
What was the challenge?
In 2021, Red Harvest started growing cucumbers and used predatory mites for biological control. These predatory mites were initially released every four weeks via bags. It soon became apparent that this could be done more efficiently. “In 2023 we switched to using loose material, but we did not yet have a specific device to distribute it,” Leon explains. For a year, the release was done with a hand blower, originally intended for supplementing biological control agents. This was time-consuming and did not give optimal distribution. “That's why I started looking for a better solution in late 2023: a device really made for releasing predatory mites.” 
Biology distribution
How did we approach it? 
After exploring several options, Red Harvest ended up with the UniMite. “We watched videos and delved into the options,” says Leon. “Through Royal Brinkman, we ended up with the UniMite Slider. We had worked with Royal Brinkman before and knew Luc Kurris and Martijn Maat well from previous projects. This made switching gears a lot easier.”

The installation went smoothly. “A mechanic from Brinkman had the unit operational within an hour,” says Leon. “It's a simple, but robust system that can't break much.”
Results of UniMite system
What are the results?
“The UniMite Slider does exactly what it is supposed to do: a uniform distribution of predatory mites in the crop,” says Leon. “This ensures that the biology does its job better and prevents excessive pest pressure.” Employees are also satisfied with how the UniMite works. “The system is easy to use and gives us more flexibility. For example, if we see an increase in whitefly, we can immediately switch gears and deploy additional predatory mites.”

In addition, the dosage is easy to adjust. “By spinning the gear wheel faster we can adjust the amount of predatory mites to the situation,” Leon explains. “That makes it a very flexible system.”

Although long-term results are yet to be seen, expectations are high. “The real test comes in the summer, when pest pressure is at its highest,” says Leon. “But if the biology stays in good order, hopefully we can keep the pressure low.”

Results

Uniform

distribution of predatory mites

The biology

operates better

User-friendly and 

less labor-intensive
Written on April 2, 2025

More case studies

Labor savings 
With UniMite

Stronger roots
with Moleaer

Do you have a question?

Do not hesitate to ask your questions to our specialist Michael Visser using the form. We will respond to your question as soon as possible.

Let's Improve Together

We are a global specialist in horticulture, with over 135 years of experience. 'Let’s improve together' reflects our approach. We believe that we can enhance horticulture 'only together' with growers, suppliers, and other partners. Our international network forms the foundation of our work. In our various areas of expertise within protected horticulture, we act as a knowledge partner. With more than 135 years in the horticultural sector, we understand the industry like no one else. Armed with this knowledge and a dedicated team of specialists, we assist growers worldwide in their continuous improvement.
Let's Improve Together logo
Home ​​​​>​​​​ Knowledge Center​​​​

Case study

Efficient distribution of predatory mites with UniMite Slider in cucumber
In the Middenmeer greenhouse area, Red Harvest grows 45 acres of cucumbers and tomatoes. Leon Vis has been with Red Harvest for 11 years and plays an important role in organic crop protection as team leader crop protection. Since last year, he has also been responsible for the cultivation in two greenhouses. “We are always looking for efficient and sustainable solutions to keep our crops healthy,” he says. 
Leon Vis

The project in brief

 Installation of UniMite in cucumber cultivation
 Better distribution of predatory mites
✔   Efficient solution for biology distribution
What was the challenge?
In 2021, Red Harvest started growing cucumbers and used predatory mites for biological control. These predatory mites were initially released every four weeks via bags. It soon became apparent that this could be done more efficiently. “In 2023 we switched to using loose material, but we did not yet have a specific device to distribute it,” Leon explains. For a year, the release was done with a hand blower, originally intended for supplementing biological control agents. This was time-consuming and did not give optimal distribution. “That's why I started looking for a better solution in late 2023: a device really made for releasing predatory mites.” 
Biology distribution
Results of UniMite system
How did we approach it? 
After exploring several options, Red Harvest ended up with the UniMite. “We watched videos and delved into the options,” says Leon. “Through Royal Brinkman, we ended up with the UniMite Slider. We had worked with Royal Brinkman before and knew Luc Kurris and Martijn Maat well from previous projects. This made switching gears a lot easier.”

The installation went smoothly. “A mechanic from Brinkman had the unit operational within an hour,” says Leon. “It's a simple, but robust system that can't break much.”
What are the results?
“The UniMite Slider does exactly what it is supposed to do: a uniform distribution of predatory mites in the crop,” says Leon. “This ensures that the biology does its job better and prevents excessive pest pressure.” Employees are also satisfied with how the UniMite works. “The system is easy to use and gives us more flexibility. For example, if we see an increase in whitefly, we can immediately switch gears and deploy additional predatory mites.”

In addition, the dosage is easy to adjust. “By spinning the gear wheel faster we can adjust the amount of predatory mites to the situation,” Leon explains. “That makes it a very flexible system.”

Although long-term results are yet to be seen, expectations are high. “The real test comes in the summer, when pest pressure is at its highest,” says Leon. “But if the biology stays in good order, hopefully we can keep the pressure low.”

Results

Uniform

distribution of predatory mites

The biology

operates better

User-friendly and 

less labor-intensive
Written on April 2, 2025

More case studies

Labor savings 
With UniMite

Stronger roots
with Moleaer

Do you have a question?

Do not hesitate to ask your questions to our specialist Michael Visser using the form. We will respond to your question as soon as possible.
Michael Visser

Let's Improve Together

We are a global specialist in horticulture, with over 135 years of experience. 'Let’s improve together' reflects our approach. We believe that we can enhance horticulture 'only together' with growers, suppliers, and other partners. Our international network forms the foundation of our work. In our various areas of expertise within protected horticulture, we act as a knowledge partner. With more than 135 years in the horticultural sector, we understand the industry like no one else. Armed with this knowledge and a dedicated team of specialists, we assist growers worldwide in their continuous improvement.
Let's Improve Together logo