Expert insights on spraying precisely, safely and effectively from Dave Young's 40+ years in the industry.
Get OSST-compliant 2,4-D guidance, why CFLD-XC40 tapered nozzles matter, and size them with our spot-spray calculator before summer.
Dave Young
28 September 2025
Discover how ARAG CFLD-XC40 tapered spot-spray nozzles can extend your tank range, reduce chemical waste, and maximize efficiency in single spot spraying operations. Perfect upgrade for legacy WEED-IT rigs and broad-acre applications.
Dave Young
25 September 2025
Comprehensive analysis comparing PWFM tapered fan nozzles vs even fan nozzles for spot spraying on autonomous robot sprayers. Real-world WEED-IT Quadro swarm sprayer performance data from Rometron reveals superior precision agriculture technology for single-spot spraying applications.
Dave Young
17 September 2025
In a groundbreaking collaboration, ARAG and Carbon BEE have unveiled the ARAG FlowTRON / Carbon BEE integration, addressing the persistent challenges of spot spraying with unparalleled precision and efficiency. This innovative solution promises to transform agricultural spraying practices, particularly for broad-acre farmers in Australia. Here's how this cutting-edge technology solves spot-spraying problems and delivers exceptional results.
Dave Young
24 June 2025
The THREE rates you need to know about for Single Spot spraying
Dave Young
21 June 2025
On Thursday this week, one of my readers regarding overlapping nozzle rates on his vintage WEED-IT asked
Dave Young
7 March 2025
The first thing to understand about how the CBEE determines which nozzles to activate is this. The CBEE will turn on nozzles where a weed appears in the footprint (spray width) of the nozzle as specified in the configuration settings.
Dave Young
5 March 2025
This is just to follow on with the discussion relating to nozzle spray widths. Let's compare the spray widths of 110°, 80° and 60° nozzles.
Dave Young
5 March 2025
All new BATCH-IT is a batching and reporting App for single spot applications. Head scratching be gone!
Dave Young
4 March 2025
Understanding the relationship between isolated and overlapping nozzles is vital for correct nozzle selection. Unless you get that right and are clear on what your target objectives are, chemical batching and post job reporting will be suspect as well.
Dave Young
3 March 2025
The See & Spray Nozzle Pocket Guide provides all the information to work out a per nozzle flow rate required based on band width for single spot (isolated nozzle) applications. There are two sets of tables that provide theoretical values which should be used in place of nozzle spacing in the final worksheet.
Dave Young
1 March 2025
It has been quite a journey and I have ruffled a few feathers along the way in my quest to bring some accuracy and precision to the complex art of setting up a sprayer for isolated nozzle operation, that is to say Single-Spot Spraying.
Dave Young
20 February 2025
Since all spot sprayers are not the same, I'm going to classify them into three main groups. I'm not concerned with cameras or sensors just the rate controller and nozzles. The spraying bits.
Dave Young
9 February 2025
Based on my assessment and absent any evidence to the contrary (after publishing this information widely), it appears that EVERY single spot capable camera system, at least in Australia has a rate controller calibrating on blanket, not spot rates.
Dave Young
7 February 2025
In the last two episodes we’ve discussed the problems associated with switching from side safety to single spot, that is halving of the rate (approximately) and understanding that where multiple nozzles engage in single spot mode the rate between them doubles (approximately)
Dave Young
2 February 2025
Last week I wrote to you about what happens when you switch your spot spraying system from side safety (multiple nozzles) to single spot, that your application rate for isolated nozzles could drop off by up to half or even more depending on nozzle height, size and angle.
Dave Young
28 January 2025
When you take a spot spraying system and attach it to a boom sprayer, the expectation is that it will just work like normal. Well if two or more adjacent nozzles are firing, it probably does.
Dave Young
23 January 2025
Q&A with Gary Dorr of the APVMA on rate calculation and nozzle selection for Optical Spot Spray Technologies (OSST)
Dave Young
14 March 2024
110° nozzles on spot-sprayers - Really?
Dave Young
22 December 2023
Bitcoin accounting for SME's
Dave Young
22 December 2023
Coarse sprays.
Dave Young
22 December 2023
Dave on Optical Spot Sprayer Nozzles
Dave Young
22 December 2023
Dave’s Concise Pulse Width Modulation Guide
Dave Young
22 December 2023
Dave’s Concise Fungicide Spraying Guide
Dave Young
22 December 2023
Dave’s Concise Spray Drift Management Guide
Dave Young
22 December 2023
Dave’s Concise Stubble Spraying Guide
Dave Young
22 December 2023
Determining Sprayed Width for L/ha Applications.
Dave Young
22 December 2023
Duty Cycle Apps and Spray Calculators
Dave Young
22 December 2023
An article about stopping weeds in wheel tracks.
Dave Young
22 December 2023
Explaining the Spray Quality Standard ASABE S572.1
Dave Young
22 December 2023
PWM v Air Induction for Drift Management & Coverage
Dave Young
22 December 2023
Practical Guide to 2,4-D Spray Quality Compliance
Dave Young
22 December 2023
See & Spray Guidelines - Superseded on 14/03/2024 by OOST label rate compliance
Dave Young
22 December 2023
Spot-Spray basics.
Dave Young
22 December 2023
An article about stubble jet.
Dave Young
22 December 2023
What gripes a nozzle guy!
Dave Young
22 December 2023