Journal of Applied Entomology - Zeitschrift für angewandte Entomologie (1996) 120, 493-499

J.S. Kennedy, G. Van Impe, Th. Hance and Ph. Lebrun (1996)
Demecology of the false spider mite, Brevipalpus phoenicis (Geijskes) (Acari, Tenuipalpidae)
Journal of Applied Entomology - Zeitschrift für angewandte Entomologie 120 (8), 493-499
Abstract: A life and fecundity table has been constructed for Brevipalpus phoenicis, a serious pest of plantation crops, and various demographic parameters have been calculated. Although this mite has been found to possess a low growth rate (r_m = 0.127), it possesses high rates of survival even in its senescence. Under constant experimental conditions the net reproduction rate is 33.2 eggs/mite, the generation time is 27.6 days and the population doubles once in 5.5 days. The stable age profile of the population is distributed as 74.9%, 19.24% and 6.07% of eggs, immatures and adults, respectively. Another aspect considered in this paper is the evolution of the population in function of an effective initial population of 10 individuals. This mite takes a longer time to reach constant growth rate and stable age distribution (156 days), however, the population growth is astronomical. The damage caused by them passes beyond the economic injury level within 34 days by an effective initial population of 10 mites in a tea bush having 100 leaves. This suggests an earlier intervention to check the population. The demographic analysis reveals that the following five aspects of its life history, namely high survival and fertility rates, reproductive intensity in the prime youth, lack of diapause, parthenogenetic mode of reproduction and euryphagy on perennial crops, are of major importance. Reasons for the importance of these characteristics are also 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): Thierry Hance

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

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Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
	Brevipalpus phoenicis	Apple (Malus)
	Brevipalpus phoenicis	Citrus (genus)
	Brevipalpus phoenicis	Peach/nectarine (Prunus persica)
	Brevipalpus phoenicis	Pear (Pyrus)
	Brevipalpus phoenicis	Olive (Olea europaea)
	Brevipalpus phoenicis	Ficus (crop)
	Brevipalpus phoenicis	Tea (Camellia sinensis)
	Brevipalpus phoenicis	Coconut (Cocos nucifera)
	Brevipalpus phoenicis	Guava (Psidium)