Fargro News Update November 2005

Fogging and ULV (Aerosol) applications

Fargro supply a range of Dynafog, thermal and cold fogging equipment, which can be used for many purposes. The advantages of using these techniques over conventional high volume sprayers are:

* Spray droplets are optimally sized to improve targeting.
* No run off of chemicals compared to conventional high volume applications.
* Reduces labour costs considerably as the work is carried out more quickly.
* Avoids application of high volume spray (excess water) when disease is prevalent particularly during low light cold temperature conditions.

Fog Particles and High Volume Spray Droplets

Fog particles seen through the eye of a needle compared to typical large droplets from high volume spray.

What is a fog application?

Typically a thermal fog has a droplet size from 0.15 - 10 micron and is characterised by a highly visible spray cloud. A standard cold ULV aerosol application produces droplet sizes of mainly 10 - 25 micron, but can produce droplets up to 50 microns through adjustment of the flow rate. A ULV aerosol application cannot be seen in the same way as a thermal fog. Fogging has extremely effective properties when it comes to pest and disease control. Such treatments can result in a quick reduction of an existing pest population when an effective fast acting insecticide is used.


Movement of small fog particles around a target

A typical high volume (knapsack) spray droplet would be in the range of 100-200 micron. Fogging techniques produce far more droplets from the same volume of liquid and therefore improved pest targeting. Coverage is far more efficient, from which effective control follows (1ml of liquid would produce 556,000,000 droplets at a particle size of 15 micron).

Uses

Crop protection, disinfection, humidification, and odour control. Whatever your requirements we can match a machine to that use.

Disinfection

MISTER III

It is extremely important in many situations that good disinfection takes place, usually between crops or in animal houses. Droplets can be produced around 50 microns, which is optimal for animal house buildings with a degree of residual activity.

The use of certain disinfectants when used with fogging techniques is an ideal treatment for end of season glasshouse salad crops such as tomatoes and cucumbers where diseases can be present. Ask Fargro for details.

Pest and Disease Control

Small droplet distribution is essential for many pests and diseases in order to have efficacious results. Small particles can penetrate dense foliage crops and difficult to reach situations where conventional high volume sprays fail. Quick pest knockdown with excellent crop safety can be achieved with fogging technology.

Nightstar

Humidification

Many situations demand high humidity levels and Dynafog equipment can cater for that requirement.

What machine is right for you?

Choose from our large range and check with our experienced staff to determine how to get the best of each and every situation with fogging and misting equipment.

Fargro Market a wide range of fogging equipment and carry a wide range of spare parts. A comprehensive service, including training requirements and demonstrations of equipment is offered.

For further information contact Mike Pendennis on 01903 721591