12 May 1995

Trial confirms wheat spray needs

EXTENSIVE trials co-ordinated by Morley Research Centre, Norfolk, confirm the need to ensure winter wheat is well protected against leaf disease between late stem extension and ear emergence.

Fungicide timing is all-important, though product choice may often be less so, according to a Home-Grown Cereals Authority report* on the work.

It highlights the need to understand the biological properties of different materials, particularly new generation conazoles. And it shows how variety resistance may help cut inputs.

*Project Report No 103, entitled Fungicides for Controlling Leaf Diseases of Winter Wheat: Evaluation, Timing and Importance of Varietal Resistance, price £10 (inc p&p) is available from the Home-Grown Cereals Authority, Hamlyn House, Highgate Hill, London N19 5PR.