Greenhouse hygiene plays a foundational role in successful crop production. A clean start determines how the entire cultivation cycle will unfold, influencing plant health, yield potential, and operational reliability. Greenhouses may be controlled environments, but without strict hygiene measures they can quickly become ideal breeding grounds for pathogens and pests. Plant residues, humidity, warm temperatures, and organic build‑up in equipment all create opportunities for fungi, bacteria, viruses, and insects to multiply.

Regular cleaning and disinfection not only reduce disease pressure but also maintain the performance of essential equipment. Irrigation systems, pumps, and tools must operate in optimal condition to guarantee consistent plant growth, nutrient supply, and water distribution. In short: a clean greenhouse is the first step toward a healthy crop.

Why hygiene matters for every grower 
Greenhouse hygiene concerns every grower, regardless of crop type or production system. Plant diseases can severely impact yield, reduce quality, and in extreme cases destroy entire crops.

If the previous season saw any level of pathogen pressure—whether mild or severe—hygiene protocols must be even more rigorous. Viruses and bacteria in particular cannot be controlled with standard measures, making proper sanitation the most effective line of defense.

What determines the effectiveness of hygiene protocols
Not all cleaning and disinfection procedures are equal. Several critical factors influence their success:

• Compatibility between disinfectant and target pathogen
• Active ingredient concentration and the correct dilution
• Contact time on surfaces to ensure complete inactivation
• Type of formulation used (liquid, foam, gas, powder)

Understanding these principles ensures that disinfection doesn’t just reduce pathogens—but eliminates them.

Cultilene’s hygiene focus
Cultilene places strong emphasis on hygiene from the very start. All Cultilene substrates are: produced under sterile conditions. This guarantees a clean and safe foundation for your crop.
However, after substrates enter the greenhouse, the grower’s hygiene practices become crucial.

A single contaminated dripper—taken from an old slab and inserted into a new one without proper disinfection—can act as a direct pathogen vector, immediately compromising the new crop. Cultilene’s technical specialists support growers with practical advice on implementing effective protocols and preventing such contamination risks.

Example of a hygiene protocol before planting

1. Remove all plants and used substrate
   Start with a complete cleanout of the greenhouse.
2. Eliminate all plant residues
   Leaves, stems, fruits — pathogens overwinter and survive in organic material. Remove as much as possible.
3. Disinfect all greenhouse surfaces and equipment
   Spray the greenhouse structure, gutters, floors, tools, trolleys, and working areas with disinfectants capable of destroying a wide range of pathogens.
   If product instructions require it, rinse afterward using disinfected water.
4. Clean external areas as well
   Machinery, corridors, packing zones, and storage areas can reintroduce contamination if overlooked.
5. Strictly follow manufacturer instructions
   Correct dosage, safety protocols, and exposure times determine the effectiveness of the disinfectant.
6. Pay special attention to irrigation systems
   Biofilms, fungi, bacteria, viruses, mineral deposits, and organic residues can accumulate inside lines. Specific treatments are often required to remove these layers effectively.

Once these steps are complete, the greenhouse is ready to receive new plants under optimal conditions.

Summary: Greenhouse hygiene before planting is not simply a checklist — it is the foundation of the new crop cycle. Correct cleaning and disinfection procedures reduce disease pressure, safeguard plant health, protect equipment, and set the stage for strong and uniform growth.

By committing to thorough hygiene protocols and avoiding contamination from tools, irrigation lines, or old equipment, growers give their new plants the best possible start.

The information provided by Saint-Gobain Cultilene has been compiled with great care and is intended solely as a guideline for the user. Saint-Gobain Cultilene therefore cannot guarantee any errors and no rights may be derived from the information or advice provided. The user himself is responsible for checking the accuracy and suitability of the information and advice for application. No commercial use may be made of the information and advice provided by Saint-Gobain Cultilene, in whole or in part, without the written consent of Saint-Gobain Cultilene.