IPM and pesticide rules on golf courses

Few places is the use of plant protection products as strictly regulated as on Danish golf courses. As a greenkeeper you must both know the rules and be able to work according to IPM principles — the regulation on the education requires that the apprentice can apply IPM principles and data analysis to identify and combat pests and diseases in grass in a sustainable way. This article gives you the overview of the most important rules and concepts.

§IPM – prevent before you control

IPM stands for Integrated Pest Management, in Danish integrated pest management. The requirement comes from EU Directive 2009/128/EF on the sustainable use of pesticides, which requires professional users to think of chemistry as a last resort. The basic thinking is a fixed order in decisions:

• 01Prevent: robust grass varieties, correct fertilisation, aeration and good drainage so problems do not arise at all.
• 02Monitor: keep a systematic eye on the field — record disease signs, pests and weeds.
• 03Use thresholds: only fight when damage really threatens play quality or grass cover, not at the first spot.
• 04Choose non-chemical methods first: mechanical control, re-seeding, changed care.
• 05If chemistry is necessary: choose the most gentle, approved agent at the lowest effective dose.
• 06Evaluate: did the intervention work? Document and adjust the care plan.

§The golf regulation and load limits

The regulation on the use of plant protection products on golf courses — in common parlance the golf regulation — sets limits on how much pesticide load a golf course may apply to the environment and health per hectare. There are separate load limits for four active substance groups: herbicides (weed killers), fungicides (fungicides), insecticides (insect killers) and growth regulators. The load is calculated based on the active substance content of the products and their environmental and health profile, and the requirements depend on which course elements are treated — greens, tees, fairways and rough are not assessed equally.

§Reporting in Greendata

Each port facility must have a security assessment (PFSA) that maps threats and vulnerabilities, and a security plan (PFSP) that describes the concrete measures: how access is controlled, how goods are monitored during handling, and who is responsible for what. The plan is not just a piece of paper in a drawer — it's what underlies the fences, booms, cameras and procedures you encounter every day.

§Spray certificate and authorisation in MAB

You must not just grab a sprayer and start. Professional application of plant protection products requires training and authorization in the Danish Environmental Protection Agency's authorization system MAB. The spray certificate provides the basis for an S1 authorization, which covers application with, among other things, field sprayers; for hand and backpack sprayers there is a separate hand and backpack spray certificate. The authorization must be kept current: according to the EPA, certificate holders must complete a follow-up course every four years to maintain their authorization.

§IPM in everyday practice on the course

In practice, the rules mean that modern greenkeeping is data-driven. You monitor the course systematically, know the major fungal diseases like snow mould (Microdochium nivale) and their preferred conditions, and you use weather data and observations to time prevention: strengthened grass before autumn, removed dew on vulnerable greens, aeration against compaction. When a problem still grows over the threshold, you choose the method according to the IPM order — and document everything. It is precisely this combination of expertise and systematisation that the education's subjects on grass diseases, plant health and spraying build up.

“The best spraying is the one the course's maintenance made unnecessary.”

— IPM basic idea