CONTROLLING MILDEW WITH LIGHT TREATMENT


Avoid pesticides and let Thorvald do the job for you

Powdery mildews are among the most problematic plant pathogens to control with fungicides. Strawberries are particularly affected, as many commercial varieties are highly susceptible, are grown in climates that favor disease, and the powdery mildew pathogens rapidly become resistant to many of the best fungicides.

Weekly exposure of strawberries to shortwave UV light is highly effective in suppressing powdery mildew on strawberry, but the treatments must be applied at night to avoid damaging the plants. That creates a labor issue. No one wants to drag a UV light array behind tractor all night long. That’s where modern agricultural robots excel: they can carry the relatively lightweight lamp arrays, and they don’t mind working all night.

CONTROLLED MILDEW WITHOUT PESTICIDES

Allows you to control powdery mildew in strawberries without the use of pesticides.

THORVALD DOES THE JOB ON ITS OWN

Saves you time and money spent in applying pesticides, as the UV-treatment is autonomous.

OPENS UP FOR ORGANIC GROWING

Thorvald and UV-treatment is an environmental solution that is allowed in organic growing.

EFFICIENT FARM AND YIELD INCREASE

No yield loss due to stop in harvesting for using pesticides. Likely effect on the durability.

LIGHT TREATMENT LEADS TO

80-95%

PROVEN REDUCTION OF MILDEW

WHAT ARE THE PROVEN RESULTS?

Repeated trials in commercial strawberry fields in the US, and high tunnels systems in Norway have demonstrated that UV light, properly applied, can provide suppression of powdery mildew that is as good as the best available fungicides.

As a bonus, the treatments have also shown very good suppression of the eggs and immature stages of mites that feed on strawberry plants. Parallel trials in grapes, hops, and other specialty crops have shown similar benefits from UV treatments.

WHERE CAN THORVALD DO LIGHT TREATMENT?

OPEN FIELDS

The Thorvald robot can be custom assembled to any open field, and reduces soil compaction with its lightweight design.

POLY TUNNELS (real picture coming soon)

The Thorvald robot can be custom assembled to fit your polytunnels with high tables. All polytunnel environments are different which are solved with its modular design.

GREENHOUSE

The Thorvald robot can be custom assembled to fit any greenhouse. Upon special greenhouse environments we work together to find the best solution for light treatment.

WHICH PLANTS CAN I DO LIGHT TREATMENT ON?

STRAWBERRIES

Thorvald can do light treatment on strawberries in open fields or table tops.

CUCUMBER

Thorvald can do light treatment on cucumbers in greenhouses.

TOMATOES

Thorvald can do light treatment on tomatoes in greenhouses.

TECH SPECS

Open fields and tunnels

PERFORMANCE SPECIFICATIONS

Weight 220kg
Payload 150kg
Operation time/battery 2,5 h or 5 h (Requires extra battery pack)

Operation speed. Dosage dependent. (Typ. 0,4 to 0,8 m/s.)
Maximum speed: 1,5m/s.
Propulsion power 2kW
Wheel rotation: 360 deg +/- 180 deg

 

MECHANICAL

Fixed arc width with slightly adjustable wheel base.

Request a quote on light treatment or ask us about Thorvald and its services

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INTERESTED IN PICKING THE STRAWBERRIES AS WELL?

We will launch a strawberry picking implement to mount on the robot. Farmers who have already purchased the UV-treatment service will be given priority to the harvesting service when it is ready for the market. Read about the Strawberry harvester here

VIDEOS OF THORVALD DOING LIGHT TREATMENT

Thorvald driving autonomously at night while doing light treatment on strawberry plants in Florida to prevent mildew.

Thorvald driving autonomously in strawberry filed in Florida. The light treatment must be completed at night so this video only shows the details of the robot.

Thorvald doing light treatment on tomatoes in greenhouse. Video by: LandTek 2018.
(Norwegian audio and subtitles only).