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Updated: Jun 25, 2026

A Wind Tunnel for Odor Mediated Insect Behavioural Assays

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Interception of spray drift by border structures. Part 1: wind tunnel experiments.

M De Schampheleire¹, D Nuyttens, D Dekeyser

¹Ghent University, Laboratory of Crop Protection Chemistry Coupure Links 653, BE-9000 Gent, Belgium. Mieke.Deschampheleire@UGent.be

Communications in Agricultural and Applied Biological Sciences

|February 21, 2009

Summary

Field border structures like artificial screens and crops can intercept spray drift. The type of structure significantly impacts interception, but height does not, offering new drift mitigation strategies for crop sprayers.

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Area of Science:

Agricultural Engineering
Environmental Science
Agronomy

Background:

Spray drift from agricultural field crop sprayers poses environmental risks.
Current drift mitigation strategies do not fully incorporate field border structures.
Research is needed to evaluate the efficacy of various border structures in reducing spray drift.

Purpose of the Study:

To investigate the drift-intercepting potential of artificial screens, plastic Christmas trees, and potato canopies.
To assess the influence of structure type and height on spray drift interception.
To evaluate the effectiveness of these structures as novel drift mitigation measures for crop sprayers in Belgium.

Main Methods:

Drift-interception experiments were conducted in a wind tunnel at the International Centre for Eremology.
Various artificial screens (0.5-1m height, 16-63% open area), plastic Christmas trees (0.5-0.75m height), and a potato canopy were tested.
Interception structures were positioned 1m from the field border.

Main Results:

The type of border structure significantly influenced spray drift interception.
Artificial screens, plastic Christmas trees, and potato canopies demonstrated varying levels of drift interception.
The height of the artificial screens and plastic Christmas trees did not have a significant effect on drift interception.

Conclusions:

Field border structures show promise as effective drift mitigation measures.
Selecting the appropriate type of border structure is crucial for maximizing spray drift interception.
Further research can optimize the design and placement of border structures for enhanced agricultural sprayer efficiency and environmental protection.