Review
Films for strawberries and raspberries – which one to choose?
Kritifil® tunnel films (3809, 2497, 2495) dedicated to soft fruits are UV-OPEN products, reinforced with Metallocene and EVA, which allows for their installation on ropes,.
The main difference between them lies in the degree of light diffusion (diffusivity), which determines their intended use depending on the desired harvest time and protection from the sun,.
- Kritifil® 2495 – "Early Start"
This is the film with the lowest degree of light diffusion in this lineup, designed for growers aiming for the earliest possible start to the season.
• Diffusion: 45% (tunnel version) or 50% (rain shelter/canopy version),.
• Application: Early crops of strawberries and peppers,.
• Characteristics: A lower level of diffusion allows for faster heating of the tunnel, which accelerates plant vegetation,.
• Thickness: Typically 140 or 150 µm (tunnel version) and 125 µm (rain shelter version),. - Kritifil® 2497 – "Stable Year-Round Production"
This is an intermediate solution, constituting the "golden mean" for year-round crops.
• Diffusion: 60%,.
• Application: Year-round cultivation of strawberries, raspberries, and blueberries,.
• Characteristics: Ensures uniform light conditions throughout the year. It protects plants during periods of stronger sunlight better than the 2495 model, but still transmits enough light for balanced growth,.
• Thickness: 140 or 150 µm,. - Kritifil® 3809 – "Protection and Coolness in Summer"
This is a film with the highest degree of diffusion, designed to provide maximum protection for plants against heat stress and sunburns.
• Diffusion: 70% (in some variants up to 75% depending on the product group description),.
• Application: Year-round cultivation of soft fruits (strawberries, raspberries, blueberries), especially where lowering the temperature in summer is a priority.
• Characteristics: Very high light diffusion limits the overheating of the crop on hot days. This ensures higher fruit quality and plant comfort, although it may be associated with a slightly later start of vegetation compared to less diffusive films,.
• Thickness: Available in thicker variants: 150, 180, or 200 µm,.
| Feature | Kritifil® 2495 | Kritifil® 2497 | Kritifil® 3809 |
| Purpose | Very early harvest | Stable year-round cultivation | Protection against heat (Summer) |
| Diffusion | 45%50% | 60% | 70% |
| Thermal Effect | (faster heating) | (balanced) | Yes (lowering temp. in summer) |
| Thickness | 140, 150 µm | 140, 150 µm | 150, 180, 200 µm |
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