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Bugeilus Fawr Project

Integrated Pest Management for grassland and arable systems

The primary aim is to establish effective and sustainable pest management strategies that prioritise reduced reliance on pesticides and other chemical controls.

First published:
14 May 2026
Last updated:
14 May 2026
Status:
Complete
Farmed by:
Arfon Evans
Location:
2 Refail Bach, Rhoshirwaun
Sector:
Beef

Overview

Bugeilus Fawr is a 320-acre mixed farming operation located on the Lleyn Peninsula in Wales. The farm's primary emphasis is livestock production, utilising a 6-7 year pasture rotation system alongside the annual cultivation of 30 acres of spring barley. To enhance soil health and forage quality, red clover and diverse herbal leys are incorporated into the rotation. 

The farm maintains a 120-head Belgian Blue cross, Limousin cross suckler herd (including replacements) with Charolais and Limousin bulls, in addition to a 500-head Texel x Mule sheep flock.

This project seeks to develop a comprehensive Integrated Pest Management (IPM) strategy for Bugeilus Fawr. The focus will encompass both the farm's grassland and arable systems. 

The primary aim is to establish effective and sustainable pest management strategies that prioritise reduced reliance on pesticides and other chemical controls. Key objectives include:

  • Identifying and assessing prevalent pest species (insects, diseases, weeds, and others) and pressure levels across the farm.

  • Emphasising weed management identification for effective control strategies.

  • Evaluating the potential of cultural, mechanical, and biological control methods for all identified pests.

  • Designing a multi-faceted IPM approach that combines the most suitable practices for Bugeilus Fawr's specific needs.

A successful IPM strategy will offer Bugeilus Fawr the following potential benefits:

  • Improved crop and livestock health through reduced pressures from pests, diseases, and weeds.

  • Reduced pesticide use, promoting ecological health and potentially reducing input costs.

  • Enhanced biodiversity due to supporting beneficial insect populations and natural pest control mechanisms.

The project will also contribute to the Sustainable Land Management outcomes including:

  1. Resource efficiency

  2. Reduced greenhouse gas emissions

  3. Protected natural landscapes and historic environment

  4. High animal health and welfare

  5. Clean Water, Mitigate flood & drought risk

Latest Project Timeline

Key Results:

  • Increased crop yield through optimized fertilisation and seeding techniques.
  • Reduced pesticide and fertiliser use by 25%, improving soil and environmental health and minimizing runoff.
  • Reduced labour by 20% through efficient seeding and drilling methods.

Background: 

Bugeulus Fawr, owned by Messrs Evans, focuses on enhancing productivity and sustainability across 30 acres of spring barley, 12 acres of winter barley, and a perennial ryegrass-red clover mix. The farm utilized conventional ploughing to reduce weed pressure during establishment for barley and direct drilling for the grass-clover mix, aiming to improve yield, reduce input costs, and enhance environmental sustainability. The project also focused on tailored fertilizer plans, weed management, and pest control to optimize crop health and yields.

Purpose of Work:

  • Improve winter and spring barley yields through optimised fertilisation and seeding.
  • Successfully establish a perennial ryegrass and red clover mix with minimal soil disturbance.
  • Enhance resource efficiency by implementing precise soil health practices, pest control, and targeted weed management.

What We Did:

  • Ploughed and used combination seeding for barley, integrating fertilizer application.
  • Soil samples were taken to create tailored fertilizer plans using the AHDB RB209 guidelines.
  • Direct-drilled the ryegrass-red clover mix, reducing soil disturbance and improving moisture retention.
  • Applied pre-seeding herbicides to control perennial weeds like dock and chickweed.
  • Used slug traps to monitor populations and applied insecticides when aphid thresholds for BYDV were exceeded.
  • Ensured all chemical applications were guided by BASIS and FACTS-qualified experts.

Outcomes:

  • Fertilizer and Pesticide Reduction: Reduced pesticide and fertilizer use by 25% compared to previous years with tailored applications.
  • Weed Control: Successfully reduced common dock, chickweed, and charlock pressure, improving crop establishment.
  • Slug Control: Timely use of slug traps and molluscicides prevented significant crop damage.
  • BYDV Risk Reduction: Aphid monitoring helped minimize BYDV risks in winter barley.
  • Labour Efficiency: Reduced labour hours by 20% through combination seeding and direct drilling methods.

How to Apply on Your Farm:

  • Conduct soil sampling to assess nutrient levels before planting.

  • Use the AHDB RB209 Fertilizer Recommendations to create crop-specific fertilizer plans.

  • Employ conventional ploughing and combination seeding for barley crops.

  • Direct drill perennial ryegrass and red clover mixes for better moisture retention and seedling establishment.

  • Use targeted herbicides and slug traps to manage weed and pest pressures effectively.

Previous Project Timelines


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