

Eight IPM Principles.
The 8 Integrated Pest Management (IPM) Principles. Specific reference to Yellow Rust in Winter Wheat. The ability of the fungus causing yellow rust to overcome race specific genes is well know and documented; an early occurrence being in 1932 with the variety Vilmorin 23. From there you may remember Perdix in 1966, Sleipner 1985, Robigus 2000 and Warrior in 2011. These sudden degradation’s of varietal resistances make for spectacular newspaper headlines whist causing major


I knew that...
…it’s just that I had forgotten. Reviewing cereal production for 2026 I re-read some of the science associated with the Broadbalk long-term trial at Rothamsted. The experiment with over 180 years of data has worked with organic and inorganic fertilisers. This data forms the basis for commercial crop production worldwide. What are some of its key findings? It highlights the need for additional nitrogen and phosphate to increase yield. The application of chalk (lime) is es





