Kimitec Launches its North American Website

Its finally up and live! is the perfect place to go to learn about the latest trials on this organic and non-organic line of fertilizers.  From Amifort to Tundamix, the Kimitec Group (along with the support of American Clay Works in North America) continue to focus increased yield, plant health and vigor.  Please follow this link to learn more about Kimitec Trials in hydroponics, commercial greenhouses and general agriculture.

Visit Hort Americas for additional technical information and to buy your Kimitec today.

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Hort Americas Teams up with Priva for Hydroponic Greenhouse Control Systems

Hort Americas is proud to announce our relationship with PRIVA North America (

“Priva creates innovative solutions for
climate control and process management that make minimal use of
scarce natural resources, such as energy and
water.”  For commercial hydroponic vegetable growers, vertical farmers, urban agriculturalist and greenhouse growers this includes (but does not limit) tools and management strategies for greenhouse/warehouse climate, fertilization, water (incl irrigation), labor, harvest as well other process and processing issues.

Check out this video to learn more about the history of Priva and how they may help your controlled environment agriculture production facility, vertical farm or hydroponic greenhouse.

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Horticoop online magazine BLAD (e-Leaf)

Horticoop B.V. has released the fourth issue of the magazine BLAD or e-Leaf in English.  Check it out!

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Hort Americas is now Certified to Provide Philips LEDs

Hort Americas recently finished its last round of training on Philips GreenPower Horticultural (Hydroponic) LED Product Portfolio. 

This training not only included intense product training, but it also included training on LED applications for:

1.)  Hydroponic Production of Greenhouse Vegetable Crops like Tomatoes, Peppers and Cucumbers
2.)  Hydroponic Production of Greenhouse Leafy Green and Herb Crops
3.)  Greenhouse Ornamentals
4.)  Seed Production
5.)  Tissue Culture
6.)  Growth Chambers and Grow Rooms
7.)  Needs of Research Facilities and Universities
8.)  Multi-layer Production
9.)  Vertical Farming
10.)  Urban Agriculture in Controlled Environments

Next step will be UL certification for the complete line of Philips GreenPower LEDs which are currently being trialed and commercially used in a wide variety of growing facilities around the world.

PlantLab along with many other forward thinkers is working with LEDs.
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Kimitec Organic Fertilizers, perfect for Hydroponically Grown Greenhouse Crops

Not alot of time for a post today, but wanted to put a teaser out there that we are looking at an organic fertilizer that should fit well with Hydroponically Grown Greenhouse Greens, Herbs and Veggies.

Email for details or check out our facebook page for images!/pages/Hort-Americas/133476796695370

Hope everyone is having a good summer!

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LED lighting promising for better light distribution and light as a control


LED lighting promising for better light distribution and light as a control

Most opportunities for LED lighting are in the preliminary application as a control light for better light distribution. This emerged from a meeting of the business platform light on July 7 at the Horticulture. The purpose of the meeting was the latest results from research, both in the floriculture and vegetable cultivation, to share and discuss.

The presentations and discussions with the 40 present researchers, consultants, suppliers and growers, showed that the replacement of SON-T by LED lighting is expected to have a few years away. This by the high costs and too little energy. And while the heat of a SON-T lamp added value, there is no need to replace it with LEDs. On the cost and energy efficiency of the lamp is however working hard by the suppliers.

But there are opportunities to control light and better light distribution over the crop with LEDs. Examples that were discussed were as LED control light in carnation to replace the bulb and LED in a more low-growing tulip. This requires a lot of interest from practice. The price of LED bulbs is still a bottleneck.

Led by as additional exposure with SON-T used between the crops, like tomatoes, is also an added value given. This additional production by the improved light utilization of the crop. The discussion showed that new research is to focus on the above opportunities, but one must closely reflect the practical results that also picked up more easily.

The meeting is with LTO Grow Service, Ministry EL & I Product Board for Horticulture and organized within the framework of the Platform of Light program Greenhouse as Energy Source and is a continuation of previous meetings. This is the innovation and action to significantly reduce CO2 emissions and greatly reduced dependence on fossil energy for the greenhouse in 2020.

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Lettuce Cultivation Using GreenPower LEDs

Urban farming using multilayer production continues to expand in Europe.  What does this mean for urban farmers in the U.S.?

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Update: Veranda O

Earlier this year Veranda O, a biopesticide, was labeled for commercial greenhouse use for food crops.  Recently, there have been some updates to the label and the product’s efficacy which we want to share with you.
Thielaviopsis (Black Root Rot) is now included as a pathogen controlled by Veranda O. 
Thus, the top three pathogens controlled are:
  • Botrytis
  • Rhizoctonia
  • Thielaviopsis
NOTE: Downy mildew control is minimal to ineffective (Straight from OHP).  
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Virtual Grower: A Decision Support Tool

Virtual Grower is a decision support tool for greenhouse growers. Users can build a greenhouse with a variety of materials for roofs and sidewalls, design the greenhouse style, schedule temperature set points throughout the year, and predict heating costs for over 230 sites within the US. Different heating and scheduling scenarios can be predicted with few inputs.

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LEDs and New Opportunities

We at Hort Americas continue to be amazed at what opportunities LEDs may allow for. We know and understand that it is still early in product development, but we also believe it is the way of the future.

We continue to be excited about our relationship with Philips and the opportunity to sell and market their Green Power LEDs (including the Philips Green Power Research Module, Green Power Production Module and the Green Power Flowering Lamp.

Check out this video from 2008. Even back then researchers were starting to see the possibilities…and trust us, these concepts are already working in parts of the world today!

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Pesticide Cheat Sheet

At Hort Americas we continue to add to our plant care product lineup. Therefore, we thought it would benefit our customers to have a reference chart or “cheat sheet”. Please click, download, and/or print this chart for your use. Contact us with any questions or comments.

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Hort Americas is looking for Pest Management Products for Small Growers

Hort Americas realizes that Urban Farms, Commercial Hydroponic Greenhouses and Vertical Farms come in a wide variety of sizes.  But, we also realize that most greenhouses have very similar problems when it comes to managing insects and diseases.

Also, since this is a very technical subject we recommend that you contact us at to learn more about products like:

Veranda O, Floramite, Pylon, Attain TR, Pyganic, Evergreen, Pygnaic, RootShield, Actinovate, Actino-Iron.

Again, many of these products are labeled for use on Veggies, many are Organic, but many are not so carefully read the approved label.  Hort Americas is also working with non-traditional pest management products like UV Light. Check out the video below.

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Using Ozone to Treat Biofilm, Algae, and Waterborne Pathogens

Potential contamination of surface and ground water sources from greenhouse runoff poses a challenge to our industry.  Tighter environmental restrictions, regulations, bruised reputations, and of course damage to our environment are all very real results of runoff.  Growers recognize the importance of conserving water and reducing runoff.  It has been estimated that on a per area basis greenhouse vegetable growers that recirculated their irrigation water used half the amount of water compared to non-recirculated operations.  Ornamental operations that did not recirculate their irrigation water used eight times the amount of water compared to their recirculated counterparts. These estimates are both crop and geographically dependent.  The values listed were the result of a study conducted in Canada.  The inescapable fact remains that growers heavily rely on the use of fertilizers and water to produce high quality crops.  Most growers would agree that if they can reuse their irrigation water and therefore maximize their fertilizer investment while also helping our environment the better it is for their company and everyone else.  The challenge of recycling irrigation water is the increased risk of transmitting waterborne plant pathogens. Untreated recirculated water is a looming disaster.  Furthermore, regardless of whether an operation recirculates its irrigation water they will experience biofilm if left untreated.  Biofilm is just that, a thin film of biological material e.g. bacteria, algae, and other potentially harmful and destructive micro-organisms that form on and coat numerous surfaces and can clog emitters.  It is common for growers to use chemical dosing to remove biofilm and pesticide applications to treat plants for diseases.  There is another solution.  Water treatment technologies make it easier and safer for growers to conserve water and protect their crops.  One technology available to growers is ozone.
Ozone has been around a very long time, occurs naturally, and is a strong sanitizing agent.  That smell in the air we so commonly encounter after a rainstorm: ozone.  The word ozone stems from the Greek verb “ozein” meaning “to smell”.  Ozone is made from oxygen.  Elemental oxygen (O2) exists as two atoms of oxygen. Ozone is the triatomic and unstable allotropic form of the gaseous oxygen.  When the bonds of O2 are broken either by UV rays from the sun or the energy from lightning, single oxygen atoms form.  A portion of these split atoms recombine with O2 molecules to form O3.  Ozone works to control algae and pathogens in irrigation water by oxidizing elements of cell walls before penetrating and oxidizing enzymes, proteins, DNA, RNA, and cell membranes.  Ozone has a short residual time in irrigation water yet it is strong enough to remove biofilm.  To produce ozone mechanically, oxygen from the air is converted by using an ozone generator.  The ozone generator uses electrical energy to cause O2 to break apart and reform as ozone.  The resulting ozone is then dissolved in water.  Ozone is often coupled with other technologies which increase its efficacy.  Pre-filtration provides an aid to ozone by removing larger organic particle debris.  The lower the organic load the more likely the ozone molecules will eliminate remaining algae and pathogens.  The required dose of ozone for any sanitation system depends on the intended application.  Destroying biofilm can be done with dissolved ozone residual levels of 0.2 parts per million for as little as 30 minutes.  Algae can be controlled with dissolved ozone residual levels of 0.01 to 0.05 ppm.  Ozone phytotoxicity can occur if residual levels of aqueous ozone exceed 1 ppm.  Therefore, high levels should be avoided.  Gaseous ozone levels as low as 0.075 ppm can reduce plant growth.  Inline monitoring of ozone is possible.  However, inline monitors are costly ($1,500 to $4,000) and require yearly maintenance cost of approximately $200.  Inline monitors can always be added to a system.  Most growers will elect to purchase a sample colorimetric kit.  Ozone is an oxidizer, so it can also be measured using an oxidation-reduction potential meter.  Growers need to recognize that installing an ozone system is a long-term investment.  Ozone sanitation systems are capital intensive.  However, the long term savings on labor and chemical dosing plus environmental friendliness make ozone sanitation an attractive alternative.  One company that understands irrigation sanitation is Pure O Tech, Inc.  
Pure O Tech’s BES-300 (Fig. 1), which stands for Biofilm Elimination System, supplies a concentration of ozone of up to 35 grams per hour and has an operating flow of up to 300 gpm.  The provision of ozone via the BES-300 eliminates and maintains microbial growth that clogs irrigation lines and emitters all the while increasing oxygen levels in the root zone.  The BES-300 offers drop-in installation, convenient service, and replacement parts.  With the BES-300, operations will experience reduced labor and hazardous chemicals are eliminated.  The result is cleaner irrigation tubing, increased production, and higher quality crops.  The BES-300 uses variable ozone injection rate to match the irrigation flow.  Pure O Tech’s design incorporates degassing and metering ozone in the irrigation lines.  Pure O Tech’s knowledge of mixing ozone and water utilizing an ozone generator makes them unique and worth consideration.  For more information on ozone sanitation and Pure O Tech products please contact or call (469) 532-2383.
Figure 1. Pure O Tech BES-300. Eliminates Biofilm from irrigation tubing.
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Dutch TV Spotlights LEDs from Philips

LEDs are gaining more and more popularity in the Netherlands.  From hydroponic production of tomatoes to young plant production to production of flowerin plants like kolanchoes.

If you speak Dutch you will really like the below video and growing flowering crops under LEDs in a multlayering style (vertical farming) and if you do not we think you should watch anyway and call us for help in translating.  Enjoy.

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Veranda O is now available

High humidity and cool, cloudy conditions are highly conducive to many plant pathogens that cause plant diseases.  Having the necessary tools to combat these diseases is very important for any successful integrated pest management program.  Hort Americas is pleased to announce another weapon in its arsenal against potentially devastating plant pathogens: Introducing Veranda™O from OHP, Inc.  Recently, vegetables (including cucurbits and others), strawberries and more, were added to the Veranda O label.  Plant pathogens controlled are botrytis, rhizoctonia, and other problem pathogens such as alternaria, and powdery mildew.  The mode of action works by inhibiting chitin synthase during cell wall development.  Veranda O should be used in rotation with other fungicides as part of an overall integrated pest management program.
Veranda O is classified as a “biopesticide”, has no cross-resistance to other fungicides, and is soft on beneficial insects.  The product is a water dispersible granule formulation containing 1.81 ounces of active ingredient polyoxin D per pound. The active ingredient polyonxin D, is a natural antibiotic and fermentation product of a soil bacterium.  With a 4-hour REI, Veranda O has a 0 day preharvest interval except grapes which have a 7 day preharvest interval.  Veranda O should be used at 4 to 8 ounces per 100 gallons of water.
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Pesticide Signal Words

At Hort Americas we receive questions on numerous topics. Recently we had someone ask us to explain pesticide signal words (Caution vs. Warning vs. Danger). Please click on the above title to access the Signal Word Fact Sheet offered by the National Pesticide Information Center (

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