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Use of sub-lethal effects in honeybees in pesticide risk assessment - PN0944

There is increasing concern that sub-lethal effects may have significant impacts on honeybee colonies, e.g imidacloprid. Reported sub-lethal effects have included rejection of returning foragers from the hive, e.g. with some herbicides, reduction of homing instinct and inability to fly with some pyrethroids. However, these data have not been summarised and their potential for use in risk assessment addressed. Significant amounts of data are collected in field and semi-field studies as well as routine laboratory studies but it is currently unclear how these data can be used in risk assessment. In many cases laboratory generated data cannot be easily extrapolated to the field, e.g. proboscis extension reflex. This study aims to address the types of sublethal effects reported for pesticides and how studies may be designed to include such sublethal effects and the results incorporated into risk assessments.
Objective 1 To complete a detailed literature review of sublethal effects relevant to honeybees and assess their potential for impact on colonies.
Objective 2 To develop guidance on the collection and reporting of appropriate data on sublethal effects in laboratory, semi-field and field studies.
Project Documents
• Final Report : Use of sub-lethal effects in honeybees in pesticide risk assessment   (136k)
Time-Scale and Cost
From: 2001

To: 2002

Cost: £31,785
Contractor / Funded Organisations
Central Science Laboratory
Environmental Effects              
Pest and Weed Control              
Pesticide use              
Plants and Animals              
Fields of Study
Pesticide Safety