At the end of harvest time

Greenhouse clearing

Glass cleaning (inside)

Greenhouse cleaning

Creen cloth cleaning

Cultivation gutter cleaning

Dripper system cleaning (inside)

Dripper system cleaning (outside)

Implement broad acting methods to end the old crop period insect-free.

Mechanical removal of crop residue, dirt, substrate mats, foil etc. The drier the crop is, less plant juices can be spread. Use your own or disinfected crop clearing fabrics. Be careful with plant juices (leakage from containers or spread across the property etc.)! Thorough mechanical removal of all dirt is essential to perform proper cleaning and effective disinfection.

Cleaning of greenhouse deck and façades inside:  
• Solution based on biological acids and natural plant extracts (ecological): Greenhouse Glassclean (practical dose for normal pollution: 5%) suited for cleaning of AR-coated glass (no action). Contact us for suitability per types of glass. 
 
• Solution based on fluorine hydrogen: Flusol Forte (practical dose: 3%)
• Solution based on ammonium hydrogen difluoride: Topcleaner (practical dose for low level of pollution: 5 - 10%) (see overview of glass cleaning)

After 5 - 10 minutes, spray-rinse the glass and greenhouse area with plenty of water. 
Aim: to remove all the glass cleaner and organic material. Please note: allow the ecological cleaner to soak in for 20 minutes before it is hosed down. Heat treat the chains and crop wires.

For green deposits: close the cloth and spray it with Menno ter Forte (after one day, rinse thoroughly with water and allow to dry properly). The alternative is to use a stabilized hydrogen peroxide.

Depending on the level of contamination: use alkaline cleaner Hortisept Clean 1 – 3%. Use about 1500 liters/hectare and preferably apply as a foam (the foaming version is Hortisept Clean Plus). Within 5 minutes, rinse off with high pressure (hot) water (prevent drying of the product before it is rinsed off). Choose Menno ter Forte if many algae are present. Consult the gutter supplier about warranty provisions related to the use of Hortisept Clean. A biodegradable alternative to cleaning the gutters is
Ask the gutter supplier about the warranty conditions when using Hortisept Clean. A biodegradable alternative for cleaning the gutters is Floorclean 5 - 10%.

Assess the degree of pollution of the dripper hoses towards the end of the cultivation period. 
• Depending on the level of organic pollution, use a solution of 0.2, 0.5 of 0.7% Huwa-San. Fill the complete watering system with this for at least 12 hours. Then rinse the system thoroughly. Use hydrogen peroxide strips to check that the solution reaches the end of the system, and after rinsing, that the peroxide has been washed completely out of the system or is at the correct concentration. • Use 3% nitric acid mineral contamination (product: nitric acid 38%). Protect your own safety!
Read the detailed instructions: cleaning the dripper system.

For green deposits on the outside of hoses, spray them with Menno terforte (do not rinse).
acid (pH <1; loosens dirt).
• Disinfect the plugs after that for one hour in a (soaking) solution of • •&;Replace the plugs or soak them for 24 hours in a solution of nitric acid (pH <1; loosens dirt)
• Disinfect the plugs after that for one hour in a (soaking) solution of Menno Florades 4%.

Disinfecting greenhouse areas

Sheeting

Carts & Machines

Rooms

Small tools

Dripper hose cleaning

Hygiene for feet and wheels

Hand hygiene

Materials

Other issues

When everything is dry, start disinfecting. Preferably, lather up the surfaces. For manual foaming, use the foam sprayer and when machine foaming with the spray truck, use the foamset. Also include the gutters, CO2 hoses, dripper system, duct-rail system, concrete legs and heating ducts. 
Disinfect the entire greenhouse space with Menno Florades (4%). Use at least 2,500 - 3,000 liters of liquid per hectare. This product should not be rinsed off. To ensure a longest possible contact time, make sure that the space stays moist as long as possible (skylights closed, dark day, low temperature). In case of a short cultivation period (about 2 weeks), please contact our HortiHygienz team.  
Menno Florades© is a plant protection product about which research is available on many pathogens in terms of concentrations and actions over time. Cucumber mosaic studies show that Menno Florades inactivates this virus after one hour. Menno Florades© is broad-acting, kind to fabrics (not corrosive) and can also be applied as a foam! Foam has the advantage of getting into cracks and holes, enabling a longer contact time, and that it makes treatment visible.

Withdraw (ground) sheet covers, pull gutter covers over the gutters and place the mats. Related to bacteria, molds and viruses, choose a ground cover for the total area. Pay extra attention to fitting it properly to concrete paths.

Foam clean ductrail carts, spray robots and other equipment/machines with Hortisept Clean Plus using the foam applicator. Plant juices and other pollutants are easily loosened by this method. As an ecological alternative, Floorclean can also be used for this purpose. For cleaning the sorting machine, use Nutriclean (HACCP approved).
The foam applicator is easily connected to a water hose (3 bars). Benefits of foam application: visual control and better adhesion. Rinse the product off within 5 minutes. Prevent it from drying and prevent contact with electronics

Cleaning of e.g. concrete (paths), floors of shed and canteen areas can also be done with the foam applicator + Menno Hortisept Clean Plus (1 - 3%). Contaminated floors can also be cleaned perfectly with the ecological product: Floorclean (1 - 5% soaking for a minimum of 10 minutes). Spray away the dirt before it dries. After this, disinfect all surfaces with Menno Florades, use a foam solution as an option.

Soak small tools such as knives and scissors for 15 minutes in a solution of Menno Florades (4%). (Check the pH of the solution, which works at pH 3 - 4.5)

During cultivation, apply Huwa-San (practical dose for good water quality; 40 cc/m3) to combat biofilm and the spread of pathogens. Good results are achieved against the spread of crazy roots, fusarium and pythium for instance.   

Use a Flexxo-mat (Person PT or Transport TT) to disinfect feet and/or wheels. For compulsory disinfection of hands and feet, use a (URK) Flexxo-mat. Monitor the pH of Menno Florades solution in the mat. This is active at a pH of 3 – 4.5. Also use test strips. 

At the entrance, place a hand basin with Menno H disinfectant soap for use by employees and visitors (also loosens plant sap). Repeat this process when starting work and after work breaks. Use Enno Rapid (hand disinfectant benzoic acid with alcohol) when entering the greenhouse/storage area and during work practices. This is also suitable for disinfection of small items in between times. 

Make the hygiene rules clear to visitors and employees. Use a visitor registration system and provide guest overalls, over-boots and gloves. Set up a hygiene protocol, make sure that your employees are familiar with this, and make one person (per location) responsible for total hygiene management.