Abstract
In The Netherlands windbreaks are commonly grown to protect orchards against wind damage and to improve micro-climate. Natural windbreaks of broad-leaved trees can
also reduce the risk of surface water contamination caused by spray drift during orchard spraying. Spray drift from pesticide applications is a major concern in the Netherlands, especially drift into watercourses. So far, several drift reducing measures have been accepted by waterboards and the Board for the Authorization of Pesticides (CTB). From the experiments it was concluded that the risk of spray drift contamination is high during the early developmental stages of the growing season. The 70% drift reduction in the early season as determined in previous experiments appears to be valid only for windbreaks with a certain degree of developed leaves. At full leaf stage, an 80–90% drift reduction
by the windbreak was measured. The use of evergreen windbreaks or windbreak species that develop in early season can reduce the risk of drift contamination considerably. Also,
the combination of drift reducing methods, such as one-sided spraying of the last fruit tree row and a windbreak is an effective method to reduce spray drift in the Netherlands
in early season.
also reduce the risk of surface water contamination caused by spray drift during orchard spraying. Spray drift from pesticide applications is a major concern in the Netherlands, especially drift into watercourses. So far, several drift reducing measures have been accepted by waterboards and the Board for the Authorization of Pesticides (CTB). From the experiments it was concluded that the risk of spray drift contamination is high during the early developmental stages of the growing season. The 70% drift reduction in the early season as determined in previous experiments appears to be valid only for windbreaks with a certain degree of developed leaves. At full leaf stage, an 80–90% drift reduction
by the windbreak was measured. The use of evergreen windbreaks or windbreak species that develop in early season can reduce the risk of drift contamination considerably. Also,
the combination of drift reducing methods, such as one-sided spraying of the last fruit tree row and a windbreak is an effective method to reduce spray drift in the Netherlands
in early season.
| Original language | English |
|---|---|
| Title of host publication | International Advances in Pesticide Application |
| Publisher | Association of Applied Biologists |
| Pages | 25-32 |
| Number of pages | 8 |
| Volume | 84 |
| Publication status | Published - 2008 |
Publication series
| Name | Aspects of Applied Biology |
|---|---|
| ISSN (Print) | 0265-1491 |
Keywords
- drift reduction
- Alder windbreak
- optical porosity
- one-sided spraying