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Towards zero pesticides on apples - HH2502STF

Description
This project addresses the consumer demand and hence MAFF policy objectives of producing apples which are free of pesticide residues, of high quality and produced using methods safe to the environment. It aims to achieve this by developing integrated pest and disease management systems for scab-susceptible and resistant varieties, based on sound scientific principles, that use conventional pesticides up to petalfall and after harvest and rely on cultural and biocontrol methods during summer. Additional research will be conducted to identify biocontrol methods for control of pests and diseases mainly active post bloom which are currently controlled using conventional pesticides. The project results will be used to produce a protocol for the system for use by growers. The project will also characterise the arthropod and microbial biodiversity on apple trees under different pesticide management systems . This information may be used to improve the understanding of this complex and could result in more successful introduction of biocontrol agents on perennial crops.
Objective
Overall Objective
To develop further integrated methods of pest and disease management that avoid the use of conventional pesticides during apple fruit development and produce apples with zero pesticide residues

Specific Objectives
1 To develop methods of pest and disease management for apples that restrict the use of conventional pesticides to pre-petalfall and post-harvest.
2 To demonstrate the management system to growers, fruit cooperatives and multiple retailers and to encourage uptake by growers.
3 To investigate the practical use of SAR compounds in orchards for control of apple powdery mildew
4 To evaluate isolates of Ampelomyces quisqualis as biocontrol agents of apple powdery mildew.
5 To investigate the natural occurrence of entomopathogenic fungi in rosy apple aphid populations and the possibility of exploitinfg them for biocontrol.
6 To compare the diversity of arthropod populations in apple tree plots treated with season-long broadspectrum pesticide programmes or reduced pesticide programmes with that in untreated apple tree plots.
7 To compare the diversity of microbial populations in apple tree plots treated with season-long broadspectrum pesticide programmes or reduced pesticide programmes with that in untreated apple tree plots.
Project Documents
• Final Report : Towards zero pesticides on apples   (184k)
Time-Scale and Cost
From: 2001

To: 2004

Cost: £309,510
Contractor / Funded Organisations
Horticulture Research International
Keywords
Apples              
Biological Control              
Disease Control              
Farming              
Fruit              
Horticulture              
Organic Farming              
Pest Control              
Storage              
Fields of Study
Horticulture
Horticulture