Experimental and Applied Acarology (1999) 23, 961-968

M. Madder, N. Speybroeck, J. Brandt and D. Berkvens (1999)
Diapause induction in adults of three Rhipicephalus appendiculatus stocks
Experimental and Applied Acarology 23 (12), 961-968
Abstract: Newly-moulted adults of three Rhipicephalus appendiculatus stocks, originating from Kenya, Zambia and Zimbabwe, were kept in different photoperiods (12h : 12h, 13h : 11h and 14h : 10h light : dark). The stock originating from Kenya showed almost no behavioural diapause in any of these day lengths, whereas virtually all individuals of the Zimbabwean stock entered a behavioural diapause irrespective of day length. Adults from the Eastern Province of Zambia, a transition zone between the multivoltine phenology in equatorial Africa and the univoltine in southern Africa, exhibited a photoperiod-dependent diapause response. The possible mechanisms of diapause regulation and their origin are discussed.
(The abstract is excluded from the Creative Commons licence and has been copied with permission by the publisher.)
Link to article at publishers website
Database assignments for author(s): Maxime Madder

Research topic(s) for pests/diseases/weeds:
general biology - morphology - evolution

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Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
	Rhipicephalus appendiculatus		Kenya
	Rhipicephalus appendiculatus		Zambia
	Rhipicephalus appendiculatus		Zimbabwe