Can the red palm mite threaten the Amazon vegetation?
Open Access
- 1 December 2012
- journal article
- research article
- Published by Taylor & Francis Ltd in Systematics and Biodiversity
- Vol. 10 (4), 527-535
- https://doi.org/10.1080/14772000.2012.752415
Abstract
The red palm mite Raoiella indica Hirst (Tenuipalpidae) was first reported in the New World in 2004, dispersing quickly and widely while adopting new plant species as hosts. Since then, it has caused severe damage in this region, especially to coconut (Cocos nucifera L.). It was first found in Brazil in 2009, in the northern Amazonian state of Roraima. In the present study, native and introduced plants were sampled between March 2010 and February 2011 in sites of the 15 Roraima municipalities, to estimate its distribution and the associated mite fauna. In addition, monthly samples were taken from a coconut plantation in Mucajaí throughout the same period, for an initial appraisal of the levels R. indica could reach. It was found in 10 municipalities, on 19 plant species of four families. Six species are reported for the first time as hosts. Among the associated predators, 89.1% were Phytoseiidae, most commonly Amblyseius largoensis (Muma), Iphiseiodes zuluagai Denmark & Muma and Euseius concordis (Chant). The highest densities of R. indica, 1.5 and 0.35 mites/cm2 of leaflet (approx total of 331 and 77 mites/leaflet), were reached respectively in March 2010 and February 2011. The highest density of phytoseiids on coconut (0.009 mites/cm2 or about 2 mites/leaflet) was reached in November 2010. The average densities of R. indica recorded for Roraima were comparable to those reported for countries in which the mite is reportedly economically damaging. The dispersal of R. indica through the Amazon forest may result in damage to cultivated and native palms, and plants of other families, if the projected increase in both the frequency and the severity of drought events occurs. Parts of the Amazon have undergone periods of low rainfall, a condition that appears to favour the biology of this mite. Its eventual arrival to northeastern Brazil may result in heavy economic and ecological losses.Keywords
This publication has 23 references indexed in Scilit:
- External mouthpart morphology in the Tenuipalpidae (Tetranychoidea): Raoiella a case studyExperimental and Applied Acarology, 2012
- A review of the natural enemies of the red palm mite, Raoiella indica (Acari: Tenuipalpidae)Experimental and Applied Acarology, 2011
- Host plant range of Raoiella indica (Acari: Tenuipalpidae) in areas of invasion of the New WorldExperimental and Applied Acarology, 2011
- Prey-stage preferences and functional and numerical responses of Amblyseius largoensis (Acari: Phytoseiidae) to Raoiella indica (Acari: Tenuipalpidae)Experimental and Applied Acarology, 2011
- First Report ofRaoiella indica(Acari: Tenuipalpidae) in ColombiaThe Florida Entomologist, 2011
- Development and reproduction of Amblyseius largoensis (Acari: Phytoseiidae) feeding on pollen, Raoiella indica (Acari: Tenuipalpidae), and other microarthropods inhabiting coconuts in Florida, USAExperimental and Applied Acarology, 2010
- Feeding, Reproduction, and Development of the Red Palm Mite (Acari: Tenuipalpidae) on Selected Palms and Banana Cultivars in QuarantineThe Florida Entomologist, 2009
- First Record ofRaoiella indica(Hirst, 1924) (Acari: Tenuipalpidae) in Guadeloupe and Saint Martin, West IndiesInternational Journal of Acarology, 2006
- The red palm mite, Raoiella indica Hirst, a threat to palms in the Americas (Acari: Prostigmata: Tenuipalpidae)Systematic and Applied Acarology, 2004
- LV.—On some new species of red spiderAnnals and Magazine of Natural History, 1924