Publications

Sep 2015

Effects of age and Reproductive Status on Tergal Gland Secretions in Queenless Honey bee Workers, Apis mellifera scutellata and A. m. capensis

Okosun, Olabimpe O., Yusuf, Abdullahi A., Crewe, Robin M., Pirk, Christian W. W.

Journal of Chemical Ecology

Secretions from tergal glands are part of a queen's pheromonal control of worker reproduction in honey bees. However, in...

Apr 2015

An improved odor bait for monitoring populations of Aedes aegypti-vectors of dengue and chikungunya viruses in Kenya

Owino, Eunice A., Sang, Rosemary, Sole, Catherine L., Pirk, Christian et al.

Parasites & Vectors

Background: Effective surveillance and estimation of the biting fraction of Aedes aegypti is critical for accurate determination...

2015

A small hive beetle lesson from South Africa

Pirk, Christian, Yusuf, A. A.

The small hive beetle in Europe

May 2015

Azimuth-dependent waggle dances; flight and foraging activities of the red dwarf honeybee, Apis florea Fabricius (1787)

Rod-Im, Preecha, Duangphakdee, Orawan, Radloff, Sarah, Pirk, Christian W. W. et al.

Journal of Apicultural Research

Waggle dances are a fundamental form of communication in honeybees. The patterns of a waggle dance contain both distance and...

Jul 2014

Impact of Varroa destructor on honeybee (Apis mellifera scutellata) colony development in South Africa

Strauss, Ursula, Pirk, ChristianW W., Crewe, RobinM, Human, Hannelie et al.

Experimental and Applied Acarology

The devastating effects of Varroa destructor Anderson & Trueman on European honeybee colonies (Apis mellifera L.) have been well...

Jan 2015

Mandibular gland pheromone contents in workers and queens of Apis mellifera adansonii

Yusuf, AbdullahiA, Pirk, ChristianW W., Crewe, RobinM

Apidologie

Apr 2015

Promoting effect of Fusarium oxysporum [f.sp. strigae] on abundance of nitrifying prokaryotes in a maize rhizosphere across soil types.

Musyoki MK, Cadisch G, Enowashu E, Zimmerman J et al.

Biolological Control

The integrated application of resistant crop varieties with biological control agents (BCAs) such as the Fusarium oxysporum...

Nov 2015

Response of ammonia-oxidizing bacteria and archaea to biochemical quality of organic inputs combined with mineral nitrogen fertilizer in an arable soil.

Muema EK, Cadisch G, Röhl C, Vanlauwe B et al.

Applied Soil Ecology

There exists a considerable knowledge gap about the effect of biochemical quality of organic inputs and their combination with...

Aug 2015

Candida albicans mutant construction and characterization of selected virulence determinants

Motaung TE, Albertyn J, Pohl CH

Journal of Microbiological Methods

Candida albicans is a diploid, polymorphic yeast, associated with humans, where it mostly causes no harm. However, under certain...