BEES

Small hive beetle

Greg Worley, Hugh Cai

The small hive beetle (SHB) is an emerging honeybee pest in Canada that is capable of damaging and stressing colonies in addition to causing honey spoilage. Although SHB has been reported in various parts of Canada including Ontario, it was the increase in reports of SHB in 2015 that led to the development of a provincial strategy for the management of SHB in order to limit its impact and spread.

The University of Guelph’s Animal Health Laboratory (AHL) with support from the Disease Surveillance Plan (DSP) has developed a substantive panel of tests for apiary pathogens (see callout box to the right). The partnership between the AHL and the Ontario Ministry of Agriculture, Food and Rural Affairs (OMAFRA) is exemplified by the AHL’s laboratory test for SHB.

The AHL is able to provide rapid and accurate confirmation of SHB by comparing the genetic material of the submitted specimen against known positive SHB nucleic acid. This confirmatory testing of SHB specimens is an example of how the AHL assists the provincial government in responding to threats to the health of managed honeybees using the Ontario Bees Act regulation. Given this expertise, other provincial governments are now submitting suspected SHB samples to AHL for confirmatory testing.

 

AHL bee pathogen and biomarker detection:

Viruses

Acute bee paralysis virus (ABPV)

Black queen cell virus (BQCV)

Chronic bee paralysis virus (CBPV)

Deformed wing virus (DWV)

Israeli acute paralysis virus (IAPV)

Kashmir bee virus (KBV)

Sacbrood virus (SBV)

Fungi - microsporidian

Nosema apis

Nosema cerenea

Mollicutes

Spiroplasma apis

Spiroplasma melliferum

Typanosomoid parasites

Crithida mellificae

Lotmaria passim

Insects

Apocephalus borealis (parasotoid phorid fly)

Tropilaelaps species (screening) (mite)

Varroa destructor mites (haplotyped)

Aethina tumida (small hive beetle)

Vitellogenin mRNA (a marker of overall honeybee health)

Bacteria - culture

Paenibacillus larvae ssp. Larvae (American foulbrood)

Melissococcus plutonius (European foulbrood)