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HomeFarming News‘A drone with a 20-litre tank can cover 15ha/hr’
Catherina Cunnane
Catherina Cunnane
Catherina Cunnane hails from a sixth-generation drystock and specialised pedigree suckler enterprise in Co. Mayo. She currently holds the positions of editor and general manager at That's Farming, having joined the firm during its start-up phase in 2015.
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‘A drone with a 20-litre tank can cover 15ha/hr’

The use of drone technology in precision agriculture has gained popularity in recent years.

However, there are still legislative barriers preventing widespread adoption, something which Agri-EPI and Connected Places Catapult explored in a recent webinar.

Currently, farmers can use drones for surveying, mapping, crop monitoring and disease detection.

But advances in technology mean autonomous crop pesticide applications could be a reality – if the regulations keep up.


Hannah Tew, ecosystem director at Connected Places Catapult, explained:

“Precision technology can tackle key agricultural challenges – using variable rate and precise application can reduce spray use and improve yields.”

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However, in the UK, the Sustainable Use Directive 14 forbids aerial spraying, including the use of drones. However, there is a derogation available through the Health and Safety Executive (HSE).

And drone technology is advancing all the time, as Bryn Bircher, policy officer at HSE highlighted.

He said: “We are heading into the fourth agricultural revolution. Things are changing rapidly. However, chemicals will still be around for a while.”

“There is the issue of drift; we know there is a lot of drift with a boom sprayer, but we don’t know the effect of drift from drones yet.”

And some drones do boast an impressive time-saving. “A drone with a 20-litre tank can cover 15 hectares an hour,” explained Robert Pearson at Auto Spray Solutions.

Not replacing conventional systems 

Jack Wrangham at Drone Ag stressed that it is important to remember that drones are not replacing conventional systems.

He said: “People will only use the drone if it’s better for the job than the conventional way.”

And it’s not just spraying, which drones could be useful for. They could be used for mapping, applying solid fertiliser, seeds, and slug pellets.

“Farmers could get field reports in minutes, just from flying a drone across the field – close up imagery can be used for crop uniformity and accessing the severity of weed patches,” said Mr Wrangham.

“This could inform variable rate applications, so chemicals are only applied where necessary.”

Regulatory challenges aside, the HSE is working alongside the Civil Aviation Authority (CAA) to establish what can be done to make drone operations safe.

“It is possible to apply for a permit, which will be unique to each business,” said Mr Bircher.

“We want to support new tech, and I hope we can do so with the existing legislation,” Bircher concluded.

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