Cannabis News
Greenhouse hygiene programs emphasize deep-penetration sanitation during cleanouts
During winter clean-ups, greenhouse operators prepare facilities for the next production cycle, with hygiene remaining a critical focus. Effective sanitation during crop transition plays a key role in reducing pathogen pressure and promoting long-term crop health, particularly in operations that manage virus risks such as Tomato brown rugose fruit virus (ToBRFV).
Disinfectants commonly included in greenhouse hygiene programs include Intra Multi Des GA, supplied in North America by Houweling Americas. “This product is widely used by vegetable and ornamental growers as part of comprehensive cleaning and routine sanitation strategies, especially where deep penetration is required on complex surfaces,” says the Houweling Americas team.
© Houweling Americas
Getting under the surface
Biofilms and organic debris continue to limit the effectiveness of many disinfectants, harboring microorganisms in cracks, crevices, and porous materials. According to the Multi Des GA technical team, the formulation is designed to address this challenge through penetration rather than surface activity.
“Intra Multi Des GA has five active ingredients that work together to provide strong penetration properties, allowing the product to reach microorganisms hiding in difficult access areas,” the team explained. While not positioned as a dedicated biofilm remover, the formulation is intended to reveal and eliminate pathogens sheltered beneath biofilm layers.
For best results, a two-step sanitation approach is recommended: deep cleaning to remove organic matter and biofilm, followed by disinfection. “Skip the cleaning step increases the risk of completely eliminating pathogens,” the team noted, highlighting the continued opportunity for farmer education around proper hygiene sequencing.
The role of cleaning before disinfection
As part of the Intracare product portfolio, Houweling Americas also supplies Intra Foam Organics, a cleaner designed to remove organic material prior to disinfection. Organic debris can significantly reduce disinfectant performance if not completely removed, especially on high-traffic or porous surfaces. When used as a first step, cleaners like Intra Foam Organics help ensure that disinfectants can come into direct contact with target pathogens.
Performance on porous and uneven surfaces
Concrete floors, block walls and other porous greenhouse materials remain among the most difficult areas to sanitize. According to internal tests, Intra Multi Des GA works reliably on these surfaces, moving into the micro-cracks where pathogens can persist.
“When applied to porous materials such as concrete blocks, the formulation moves significantly across the substrate,” the team explained. “This behavior is different from traditional disinfectants that remain on the surface and do not reach the embedded microorganisms.”
© Houweling Americas
Broad spectrum pathogen control
Growers of all types of crops rely on Intra Multi Des GA to manage a wide range of pathogens, including fungal, bacterial and viral threats. The reported efficacy against ToBRFV has made it an essential component of hygiene protocols in tomato production.
“Intra Multi Des GA has shown excellent efficacy against ToBRFV and has proven effective in eliminating the virus on contact when used appropriately,” the team reported. Beyond viral control, growers also use the product against pathogens such as Fusarium and Pythium in crop and ornamental systems.
Waste behavior and crop turnover
Unlike non-residue disinfectants, Intra Multi Des GA is designed to leave a residual effect on treated surfaces during cleaning, providing extensive protection between crops. This waste is not intended to come into contact with the collected products, but is used to maintain sanitation during downtime.
Operational efficiency is another matter. The product is applied at a low concentration of use, requires a short contact time and usually requires only one application, allowing rapid crop rotations without compromising hygiene standards.
Long-term sanitation results
Growers who consistently incorporate Intra Multi Des GA have reported cumulative improvements in crop rotation hygiene programs over multiple seasons. In one documented case, a Dutch tomato operation managing ToBRFV reported no subsequent infections after integrating the product into the cleaning protocol.
“Starting clean remains one of the most effective ways to reduce the risk of early cycle infection,” the team emphasizes.
Supporting North American producers
Houweling Americas supplies Intra Multi Des GA and other Intracare solutions through established distribution partners and provides technical support to assist with implementation. In addition to hygiene products, the company’s portfolio includes nutrient solutions, growing substrates, LED lighting, water treatment technologies and biostimulants such as Intra Eco Shield, with Intra Boost, a next-generation willow bark-derived biostimulant, scheduled for a North American launch in early 2026.
Based in British Columbia and Ontario, Houweling Americas works closely with growers to develop integrated solution programs that support yield, plant health and resilience. The company is part of Royal Houweling, a Dutch family business founded in 1925 and recently recognized with royal status for its long-term commitment to horticulture and sustainability.
For growers seeking technical guidance on hygiene protocols or product performance, the Houweling Americas team encourages direct engagement for further assistance.
For more information:
Houweling America
1-800-252-5824
houwelingamericas.com
Curing is one of those phases of cannabis production that almost everyone agrees is important, but that importance hardly translates into cannabis facilities. It’s understandable that growers want to maximize their canopy space first and foremost. After all, more flowers, more income. However, the irony is that by the time a plant reaches the curing room, most of the money has already been spent. The genetics are locked in, the lights have done their job, the rooms have been marked, the harvest has been carefully handled. And yet, quality is often validated or left behind.
Simon Knobel of Calyx Containers has spent an amazing amount of time thinking about this disintegration. The company started about 9 years ago, when Simon and his co-founder Alex were still in school and adult cannabis was becoming legal in Massachusetts. “Back then, cannabis packaging meant pill bottles, borrowed wholesale from the pharmaceutical world and reused without much thought,” explains Simon. “Our initial instinct wasn’t to do something revolutionary. It was just to build something that made sense for cannabis.”
As the company developed a range of packaging formats, the focus was on quality at the point of sale. “Scent retention, ease of use, shelf life, that was the pace of our design process. What took longer to fully register was that the degradation didn’t just happen after packaging. In many cases, it was already baked in during curing.”
Simon and Calyx did extensive market research to understand what was happening with quality degradation. “It’s good to talk not only with operators, but with consumers.” A story stuck. Simon recalls interviewing a client who was on a ski trip with his family and trying to hide the fact that he had cannabis with him. This awkwardness of smell, discretion and manipulation became a design problem. The sliding cover, integrated gasket, meant the elimination of the twisting motion that gave some users a literal pain in the wrist. But it also opened up a deeper line of research.
As Calyx began to talk more seriously with growers, a recurring question came up. Where exactly does quality start to slip? To answer this, the company partnered with the Cannabis Research Coalition and worked with Dr. Allison Justice on research based on the cure. “What we found was that it wasn’t particularly comfortable for anyone relying on legacy methods,” says Simon. “One of the biggest drivers of terpene preservation was the stability of water activity. When water activity drops below 0.55 aW, the stomata begin to collapse, then shrink, then break. At that point, the mono-terpenes escape.”
These mono-terpenes are responsible for most of the aromas associated with quality cannabis. “They are also volatile in nature. Once they’re gone, they’re gone,” highlighted Simon.
© Calyx Vessels
Basic methods and alternatives
Traditional healing methods are based on burping. Opening containers, exchanging air, manually regulating humidity. “This methodology works, but it also introduces oxygen. In addition, the plant material is also subject to mechanical stress. Both oxygen and mechanical stress accelerate degradation, thus hampering quality.”
Calyx Cure was designed as an alternative to that ritual. “Instead of active intervention, Calyx Cure uses a passive atmospheric film with selective permeation properties. The layers are designed to allow specific gases to move through the material while others are restricted. Biological curing processes continue, but without opening the container, without introducing excess oxygen and without handling the flower.”
In controlled studies, Calyx saw a 33% improvement in monoterpene profile preservation compared to traditional approaches such as turkey pouches. “Practically speaking, that first hit of aroma you get when you open a jar, driven largely by monoterpenes, is intact.”
Complicating the picture is that curing is not reversible. There is a persistent belief that if cannabis dries out too much, there are no moisture packs or other interventions that can bring it back. “Excessive drying slows down the enzymatic reactions, alters the aging process and permanently changes the composition of the terpenes. Once the quality is lost at that stage, the bottle cannot revive it,” he said.
© Calyx Vessels
Curing and speed to market
Therefore, post-harvest processes cannot be the last element of cannabis facility design. “Sometimes speed or short-term cost savings drive the decision. Cure less, move product faster and assume the container will handle the rest.” Market dynamics don’t help either. When a new market opens and the shelves are empty, speed is rewarded and cutting corners can be the difference between hitting dispensaries later.
Calyx approaches it as a manufacturing and engineering problem rather than a branding exercise. Unlike much of the packaging industry, which operates largely as a middleman, Calyx operates its own factory in Utah. “That vertical integration allows us to iterate quickly. New designs can be prototyped in 1 or 2 weeks.”
This can be a huge plus, as quality control is a hot topic in the wider world of agriculture, not just cannabis. The industry often talks about wanting nutraceutical or food standards. These industries have already solved the complexity of the supply chain. They know how to produce in one region and deliver consistently to another. Cannabis, especially if it wants to move globally, will need similar discipline.”
And as with food packaging, sustainability is part of that equation in cannabis. Calyx has extensively studied compostable and hemp-based structures. “Compostable materials struggle with terpene conservation and water activity control. If the package breathes too much, the plant pays the price.”
Instead, Calyx’s approach to sustainability is based on reducing the use of materials at the manufacturing level. “The cover molded joint is a good example,” explains Simon. “Traditional seals require cutting circular inserts from large sheets, creating huge waste. We’ve designed molds where a small amount of polymer forms the cover and joint in one plane, creating almost zero waste and a fully recyclable component.”
Healing, it seems, is not passive waiting. “It’s an active and fragile process,” says Simon. “And like most fragile things in cannabis, it benefits from being engineered rather than inherited.”
For more information:
Calyx vessels
1991 W Parkway Blvd. West Valley City, UT, 84119-2026
724-303-7481
(email protected)
calyxcontainers.com
Cannabis News
Michigan Lawmakers Weigh Bill To Create Statewide Cannabis Reference Lab To Standardize Testing
Cannabis News
Vivent Biosignals & Green Laniel join forces to bring plant-driven agriculture to the US
Vivent Biosignals and Green Laniel Consulting have announced a partnership to accelerate plant-driven irrigation and irrigation in key U.S. agricultural markets. Green Laniel Consulting is a US-focused provider of agronomic solutions led by Mauricio Manotas.
By combining Vivent’s ability to decode plant biosignals in real-time using plant biosensors, machine learning and AI with Green Laniel’s deep experience in agronomy, grower operations and US market access, the partnership allows growers to make decisions based on what really matters: how the plant itself is responding.
© Vivent Biosignals
The partnership will cover a variety of crops and production systems, initially plant-driven irrigation and greenhouses for perennial crops, including potatoes, directly guided by plant feedback.
“By combining Vivint’s plant-level intelligence with Green Laniel’s strong presence and agronomic leadership in the US, we are enabling a new generation of plant-driven farming systems. This partnership helps growers improve yields and quality while significantly increasing resource efficiency and sustainability.” says Mauricio Manotas, Green Laniel Consulting.
For more information:
Vivent Biosignals
Tel.: +41 79 5114627
Email: (email protected)
https://vivent-biosignals.com/
Vancouver Lift Expo 2023 Walk Around
Re-release of full CC2C News show from Monday the 10th.Full time coded content below in description
🌱Welcome To The Strain Show!
FAT NUGS CANNABIS Mag | DUSTIN HOXWORTH
Technical advances in cannabis curing focus on water activity and terpene stability
Michigan Lawmakers Weigh Bill To Create Statewide Cannabis Reference Lab To Standardize Testing
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