By: Agri Optics New Zealand  06-Dec-2011


Weeds drain nutrients and water from the soil reducing yield and profits.WeedSeeker® automatic spot spray system helps you save on chemical costs, cut down on time and labour, and reduce the

environmental impact of your field activities. WeedSeeker® automatic spot spray system is used to selectively apply herbicides to ‘weeds’, not bare ground and is highly effective wherever weeds occur intermittently. WeedSeeker® can also be used to selectively apply fungicides, insecticides, fertilisers and other inputs to targeted plants instead of ‘weeds’ in a range of applications. WeedSeeker® is being used in a wide range of applications including broad acre, pastoral and arable agriculture, horticulture and viticulture, as well as road, rail and right-of-way maintenance, airport runways, parking lots, parks and hiking trails.

Key Benefits:

  • Reduce chemical costs up to 80%
  • Eliminate manual spot spraying crews
  • Reduce spray passes by combining with mowing or discing equipment
  • Environmentally friendly
  • Can operate both night and day
  • Reduces spray drift
  • Retrofits to existing equipment
  • Helps reduce herbicide-resistant weeds

How WeedSeeker® works:

The WeedSeeker® system uses advanced optics and computer circuitry to sense the presence of a weed.When a weed enters the sensor's field of view, it signals a spray nozzle to deliver a precise amount of herbicide to that weed only. WeedSeeker® technology uses sensors and nozzles spaced at 300mm - 380mm apart.This is due to the narrower field of view associated with the WeedSeeker® sensors compared to a 500mm spacing on a standard boom.

WeedSeeker® Model 650

The WeedSeeker® Model 650 sensors operate on 12 volt, and are typically configured for a 300mm spray pattern matching its 300mm field of view. The 650 model is ideally suited for use in vineyards where sensors are mounted 455-760mm from the ground. Systems may have a single sensor or as many as 120 sensors mounted on a spray boom.

WeedSeeker® Model 655

The WeedSeeker® Model 655 sensors operate on 12 volt. They are typically spaced at 380mm apart, matching its 380mm field of view. The sensors operate at 610-760mm from the ground and typically have 60- 90 sensors or more mounted across the spray boom. The 655 model is used primarily in broad-acre applications due to the sensors being spaced further apart.


  • Two "field of view" options - 300mm and 380mm
  • Weatherproof
  • Operational both night and day
  • Modular system that can be added to
  • Capable of speeds up to 25km/hr
  • Optional radar spped control

Basic Specifications

Weight 1.2kg
Length 27.5cm
Width 8cm
Height 13cm
Power 12 volt

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