Science into practice investigating the control of cavity spot

The HDC PhD studentship scheme aims to deliver high-quality research and support the development of high-calibre, practical-minded individuals for the benefit of the horticultural industry in the commercial and academic arenas.

Studentship project CP 46 investigated possible sustainable approaches to the control of cavity spot such as companion planting and pre-crop rotations. The final report is now available to download from the HDC website.

The grower action points are:

- P. violae has a wide host range among other crops and weeds and there is little benefit from long rotations out of carrots. However, very short rotations should still be avoided as non-cavity spot factors will reduce yield if carrots directly follow carrots.

- Companion planting cannot yet be recommended to growers due to the potential loss of yield.

- Most crops in the year or two years before carrots had little effect on disease levels. However, forage rape slightly increased disease and should be avoided. From a cavity spot point of view, potatoes in the previous year is a good thing but growers should carefully consider their attitudes to controlling volunteers before choosing fields that have had this crop.

For further information on CP 46 and the work of HDC studentships, visit the HDC website.

Other news

The East Malling Trust, HDC and HTA are providing funding for horticultural fellowship awards for scientists working in fields of study crucial to the future efficiency and competitiveness of horticultural crops. The deadline for applications is 28 January 2011.

Horticultural Development Company

For details on all HDC activities, visit www.hdc.org.uk.


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