Canopy spray application technology in specialty crops: a slowly evolving landscape

Area of Science:

• Agricultural Engineering
• Crop Protection Science
• Sustainable Agriculture

Background:

• Specialty crops require pesticide applications for pest and disease management to meet market quality standards.
• Traditional radial air blast sprayers are inefficient, causing substantial chemical wastage (approx. 40%) and off-target drift (approx. 15%).
• Low adoption of precision sprayers is attributed to farmer risk aversion and regulatory hurdles.

Purpose of the Study:

• To highlight the inefficiencies of current pesticide application technologies in specialty crop production.
• To discuss the potential of precision sprayer technologies in improving application efficiency and sustainability.
• To identify future trends in pesticide application technology, focusing on sensor-controlled systems.

Main Methods:

• Review of existing pesticide application technologies in specialty crops.
• Analysis of the limitations and benefits of traditional versus precision sprayers.
• Discussion of factors influencing the adoption of new agricultural technologies.

Main Results:

• Precision sprayers demonstrate significant improvements in reducing chemical wastage and off-target drift compared to radial air blast sprayers.
• Despite clear benefits, the adoption rate of precision sprayers remains low among specialty crop producers.
• Increasing labor costs and demand for sustainable practices are driving interest in more efficient application technologies.

Conclusions:

• Sensor-controlled sprayer technology, applying proportionate amounts of spray, is identified as the likely primary precision sprayer technology for the future.
• Addressing farmer risk aversion and regulatory issues is crucial for wider adoption of efficient spray technologies.
• The shift towards sustainable agriculture and efficient resource management will accelerate the adoption of advanced pesticide application systems.