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New Lab Up and Running

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09 May 2017

Our new lab in Harbury nr Leamington Spa is now up and running, following our move from Ryton at the beginning of the year. We are happy to receive plant heatlh clinic samples and seed health testing samples at the new place. Contact us...


Carrot field storage

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28 Feb 2017

We are having an open afternoon from 2-4 pm at the Yorkshire trial site. A chance to see the different treatments and their impact on quality first hand. Click here for details


Carrot field storage - New report

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17 Jan 2017

Our report on the first year of AHDB-Horticulure project FV 398b that is loolking at alternative 'insulation' materials for carrot field storage is now available from the AHDB-Horticulture website. Download the report...


Onion neck rot report

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15 Jun 2016

Our report on onion neck rot pathogens and seed treatments can now be downloaded from the HDC website. Around 26% of 2015 commercial bulb onion seed lots were found to be infested with neck rot. Both of the main neck rot pathogens Botrytis aclada and B. allii were detected, including from fungicide-treated seed. Some seed lots contained one or the other species, but some contained both. Both species seem to be equally prevalent. Fungicide seed treatments gave variable control, but physical treatment with hot water or steam were more consistent and are recommended for neck rot. Download the report...


Carrot field storage

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01 Sep 2015

Most UK carrots for winter/spring use are stored in situ in the field, covered with a thick layer of straw insulation. The sustainability of this system is becoming increasing challenged, so the AHDB have commission Plant Health Solutions in collaboration with Vegetable Consultancy Services to investigate potential alternatives that were identified in a previous desk study. Full story...


Onion neck rot: seed infection, pathogens and treatments

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01 Feb 2015

HDC is funding Plant Health Solutions to investigate seed-borne neck rot in onions. Neck rot can cause significant losses in stored onions. It is mainly caused by two species of Botrytis: B. aclada, B. allii; that were previously lumped together as one species (B. allii). The project aims to provide some insight into the relative importance of the two main species that cause it. Full story...


New HDC Bacterial Canker Project

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01 May 2014

Bacterial canker is a destructive disease of plums and cherries, caused by two distinct pathovars of Pseudomonas syringae: pv. morsprunorum (Psm) and pv. syringae (Pss). Psm is host specific to Prunus spp., whereas Pss has a much wider host range. HDC has commissioned Plant Health Solutions to carry out further work to improved control of this disease in fruit production (TF 217), capitalising on the information and experience gained during a previous project that focussed on nursery production: HNS 179 Full story...


Bacterial canker of stone fruit - New factsheet

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07 Feb 2014

Bacterial canker is a destructive disease of cherries and plums, potentially killing trees. It is caused by two distinct pathovars of Pseudomonas syringae: pv. morsprunorum and pv. syringae. We have produced a new factsheet targeted at its management in the nursery situation that has recently been published by the HDC. Download from the HDC


Bacterial diseases of herbaceous perennials - New Factsheet

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31 Jan 2014

A new factsheet on bacterial diseases of herbaceous perennials has recently been published by the HDC. Bacterial diseases can cause significant losses to growers of herbaceous perennials, but often go unrecognised until it is too late for effective control. The factsheet, written by Steve Roberts of Plant Health Solutions, summarises information from a recent HDC project on their identification and management. Most of the diseases in herbaceous nursery stock are caused by Pseudomonas spp. and Xanthomonas spp., these included leaf spots on acanthus, aquilegia, delphiniums, geraniums and blights on perennial wallflowers and lavender. Download from HDC...


Onion storage rots caused by Burkholderia gladioli

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20 Nov 2013

The most common cause of bacterial rots in stored onions in the UK seems to be Burkholderia gladioli pv. alliicola (formerly called Pseudomonas gladioli pv. alliicola). Problems are perceived to be worse in crops grown from sets, and in wet seasons. Testing has shown that the pathogen can be present in sets at the time of planting, and can be present in growing crops without any apparent symptoms. Our poster presented at the 2013 UK Carrot and Onion Conference is now available to download. Download the handout