Allium resources

AHDB Horticulture funded an extensive programme of research on many aspects of commercial allium production. The available reports and resources are listed below.

PESTS OF ALLIUM:

Bean seed fly

Identification and control of bean seed fly in allium crops


Thrips

Control of thrips in allium and brassica crops


Leek moth

Identification and symptoms caused by the leek moth


Nematodes

Research project: Molecular methods for detection of stem nematode (Ditylenchus dipsaci) in soil and predicting risk of damage to onions and leeks

Research project: Improving risk assessment for free living nematodes in leeks




DISEASES OF ALLIUM:

Research project: Delivery of a Diagnostic test pilot scheme for Brassicas and Onions

Downy mildew

Onion downy mildew risk predictor

Research project: Further development and calibration of detection tests for conidia of onion downy mildew in combination with the Morph forecast model MILIONCAST

Research project: Bulb and Salad Onion - Evaluation of an integrated disease management system to ascribe risk of downy mildew disease on commercial crops in the UK


Leek rust

Leek rust


Onion neck rot

Onion neck rot factsheet

Evaluating onion neck rot seed treatments

Research project: Determining the effectiveness of seed treatments on the occurrence of neck rot disease in onions caused by Botrytis spp.

Research project: Onion neck rot - seed infection, pathogens and treatments


White rot

Research project: Investigation into the control of White Rot in bulb and salad onion crops

Research project: Integrated Allium white rot control using composts and Trichoderma viride

Research project: Optimising field-scale control of Fusarium basal rot and white rot of onion using Trichoderma colonised composts and pellets, and biofumigant Brassica and onion residues

Research project: Developing disease prediction of onion basal rot using a quantitative molecular test


White tip

Research project: Leeks white tip control (Phytophthora porri)




OTHER TOPICS ON ALLIUM:

Extending the season

Research project: FV 387 Improving quality and extending the season for late UK Leeks

Research project: FV 387a Improving quality and extending the season for late UK Leeks

Research project: FV 387b Improving quality and extending the season in late leek crops in the UK


Irrigation and nutrient management

Irrigation in bulb onions

Interpretation of allium leaf nutrient analysis

Nitrogen requirements for leeks

Research project: Impact of irrigation practices on Rinjnsburger bulb onion husbandry, quality and storability

Research project: Nitrogen requirements for leeks

Research project: Quantifying over-winter nitrogen requirements of the leek crop


Resistance

Research project: Use of plant defence elicitors to provide induced resistance protection in Brassica, Allium and Radish crops


Storage

Independent assessment of field and storage potential of onion varieties 2017/18

Research project: Relationship between disease incidence in stored bulb onions and first year sets

Research project: FV 348 Independent assessment of field and storage potential of varieties

Research project: FV 348a Independent assessment of field and storage potential of onion varieties

Research project: FV 348b Independent assessment of field and storage potential of varieties

Research project: FV 348c Independent assessment of field and storage potential of varieties

Research project: FV 348d Independent assessment of field and storage potential of varieties


Varieties

Onion variety trials


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