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Directed energy system

The video shows how Direct|Turf™ is applied: The delivery apparatus and DES (that white box) is pulled across the treatment area by a tractor or utility cart.  High efficiency batteries supply the source energy for the DES and are recharged, in part, by solar energy. Knife electrodes, specially designed to minimize surface disruption, slice the turf as the apparatus moves. The energy profile generated by the DES is applied to the spaced electrodes when they're fully inserted. The concentrated energy impacts the target organisms that reside in the soil and roots between the electrodes. The energy is constrained between the electrodes and will not dissipate or radiate from the treatment area.​ The area can be rolled or mowed immediately following the treatment. Play can typically resume right away. The Direct|Turf™  apparatus has a swath of 48" and is pulled at roughly 2mph. On average, a 7500sqft green can be treated in less than an hour. The batteries are capable of approximately 4 hours of treatment time, enough to cover 5 to 6 greens.


                                                                           Demonstrated Efficacy 
Trials performed by Oregon State University USDA/ARS scientists have validated the results of in-house experiments that showed a high level of control of a variety of nematode species. Follow-on trials targeting the challenging potato cyst nematode Globodera pallida, demonstrated a 90% reduction in pest viability.  Also, greenhouse trials targeting the fungal pathogens Phytophthora cinnamomi and Verticilium spp. demonstrated a significant reduction in fungal inoculum. Full-scale field trials in turf targeting root knot and the challenging  Anguina pacificae nematodes showed suppression comparable to available nematicide/fungicide applications.
  • The results of greenhouse trials showed significant reductions in nematode populations comparable to fumigants.
  • DES demonstrated a high level of control in trials targeting Phytophthora and verticillium.
  • The energy profile can be configured to target specific organisms.
  • Treatment suitable for fallow applications but is 10x more effective with the plant in place.

Lisi Global's patented Directed Energy System (DES) is an EPA-registered, non-chemical pest control device proven effective at controlling nematodes and fungal pathogens, as well as other pests with a soil borne phase, in cropping systems from golf turf to small berry fruits, trees to row vegetables.
  • DES delivers tailored doses of energy to the soil to control pests and pathogens.
  • Entirely non-chemical & non-thermal mode of action.
  • ZERO risk to the aquifer or surrounding environment/communities or labor.
  • ZERO persistence and ZERO re-entry delay; planting can occur immediately following treatment.
  • ZERO chance for pests to develop resistance.  
Published Results
Deployment
To ensure the safe and proper use of the technology, Lisi Global has developed a service delivery model for market deployment in golf and sports turf.  Similar to fumigation services, the company or its channel partners will provide the equipment and personnel to apply the treatment.  As the existing large-scale application concepts are developed, the treatment will be delivered in less time than fumigation (when re-entry delay is included) at a comparable cost.  

Development of the Technology
Near-term development focuses on refining energy profiles to target a wide variety of pests in turf. Along with targeted energy profiles, efficient application methods are also being developed to suit the unique characteristics of modern sports pitches so the technology can be applied in harmony with the many integrated systems that support healthy, durable playing surfaces. Long-term development goals focus on agriculture, specifically food crops. Whether in greenhouses or in the field, DE Technology can be effective at any stage of production when the target organisms are most accessible. From turf to agriculture, deploying this important solution where it will do the most good will be always be a top priority. 
Our Story
SIMPLY. CLEAN. SOIL.
  • Home
  • Direct|Turf
  • The DES
    • PUBLISHED RESULTS
  • OUR TEAM
    • DISTRIBUTION
    • OUR VISION
    • OUR STORY
  • CONTACT
  • Future Products
    • Direct|Yield
    • Direct|Batch
    • Direct|Organic
    • Direct|Vine
  • Blog