Status of coconut mite Aceria guerreronis and biological control research in Sri Lanka

Fernando, L.C.P.; Aratchige, N.S.

doi:10.1007/978-90-481-9837-5_68

Cited by 20 publications

(29 citation statements)

References 8 publications

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“…The species of predators most often associated with A. guerreronis in this study (N. baraki, N. paspalivorus, Amblyseius largoensis (Muma), Bdella distincta (Bake & Balogh) and Proctolaelaps bickleyi (Bram)) have also been reported in studies conducted in other countries (Howard et al 1990, Fernando et al 2002, Ramaraju et al 2002, Moraes et al 2004 and most recently in a extensive survey in northern and northeastern Brazil (Lawson-Balagbo et al 2007). However, the relation between these predators and the population of A. guerreronis needs further evaluation.…”

supporting

confidence: 76%

Population dynamics of Aceria guerreronis Keifer (Acari: Eriophyidae) and associated predators on coconut fruits in Northeastern Brazil

Reis¹,

Gondim²,

Moraes³

et al. 2008

Neotrop. entomol.

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Neotropical Entomology 37(4): 457-462 (2008) PALAVRAS-CHAVE: Ácaro do coqueiro, ácaro predador, controle biológico, PhytoseiidaeABSTRACT -Aceria guerreronis Keifer can cause severe damage to coconuts in several countries around the world. Rare studies have been conducted to determine the predatory mites associated with A. guerreronis in Brazil. The study evaluated the prevalence of A. guerreronis and associated predators on the bracts and on the surface of the fruits underneath the bracts, for 12 months, on coconut palms grown along the coast of the States of Alagoas, Paraíba and Pernambuco, Northeastern Brazil. Mites of 10 families were found, but by far the most abundant species was A. guerreronis, corresponding to 99.5% of the mites collected. The prevailing species amongst the predators were the Phytoseiidae mites Neoseiulus baraki (AthiasHenriot) and Neoseiulus paspalivorus (De Leon). These are fl at mites that have short limbs, characteristics that allow them to invade the main habitat occupied by A. guerreronis. Other predators were found, but in low numbers, due mainly to their diffi culty in reaching the fruit areas most inhabited by A. guerreronis. However, these mites could prey on that pest when it leaves its preferred habitat to disperse. No signifi cant correlations were observed between the levels of abiotic factors and the population levels of A. guerreronis or of the phytoseiids associated with it. This probably occurred due to the simultaneous and confl icting effects of those factors on the mites in the fi eld, or to signifi cant differences between the climatic factors measured in the environment and those prevailing in the habitat occupied by A. guerreronis.

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supporting

confidence: 76%

Population dynamics of Aceria guerreronis Keifer (Acari: Eriophyidae) and associated predators on coconut fruits in Northeastern Brazil

Reis¹,

Gondim²,

Moraes³

et al. 2008

Neotrop. entomol.

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“…The control of this mite by chemicals is hampered by the protection provided by the bracts (Fernando et al 2002, de Moraes & Flechtmann 2008. Although some systemic chemicals have been shown effective in controlling the coconut mite (Mariau & Tchibozo 1973, Cabrera 1991, there is a major impediment to their use, as they can leave residues in the edible part of fruits.…”

Section: Introductionmentioning

confidence: 99%

Status of Aceria guerreronis Keifer (Acari: Eriophyidae) as a Pest of Coconut in the State of Sao Paulo, Southeastern Brazil

Oliveira¹,

Moraes²,

Dias³

2012

Neotrop Entomol

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The coconut mite, Aceria guerreronis Keifer, is one of the main pests of coconut palms (Cocos nucifera) in northeastern Brazil. The objective of this study was to evaluate the levels of the coconut mite and other mites on coconut palms in the state of São Paulo and to estimate the possible role of predatory mites in the control of this pest. The effect of cultivated genotypes and sampling dates on the mite populations was also estimated. We sampled attached fruits, leaflets, inflorescences, and fallen fruits. The coconut mite was the main phytophagous mite found on attached and fallen fruits, with average densities of 110.0 and 20.5 mites per fruit, respectively. The prevalent predatory mites on attached and fallen fruits were Proctolaelaps bulbosus Moraes, Reis & Gondim Jr. and Proctolaelaps bickleyi (Bram), both Melicharidae. On leaflets, the tenuipalpids Brevipalpus phoenicis (Geijsks) and Tenuipalpus coyacus De Leon and the tetranychid Oligonychus modestus (Banks) were the predominant phytophagous mites. On both leaflets and inflorescences, the predominant predatory mites belonged to the Phytoseiidae. Neoseiulus baraki (Athias-Henriot) and Neoseiulus paspalivorus (De Leon), predators widely associated with the coconut mite in northeastern Brazil and several other countries, were not found. The low densities of the coconut mite in São Paulo could be related to prevailing climatic conditions, scarcity of coconut plantations (hampering the dispersion of the coconut mite between fields), and to the fact that some of the genotypes cultivated in the region are unfavorable for its development.

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“…The coconut fruit is the most important plant part and often attacked by a range of herbivorous arthropods including the eriophyid mite Aceria guerreronis Keifer. Since the description of A. guerreronis from coconut fruits collected in the state Guerrero (Mexico) (Keifer 1965) the tiny eriophyid mite has been reported infesting coconut fruits in most coconut growing regions of Central and South America (Doreste 1968;Howard et al 1990;Lawson-Balagbo et al 2008), South Asia (Fernando et al 2002), Africa (Mariau 1969;Seguni 2002; KoY Negloh personal communication) and most recently from Oman (de Moraes personal observation).…”

Section: Introductionmentioning

confidence: 93%

Compatibility of Neoseiulus paspalivorus and Proctolaelaps bickleyi, candidate biocontrol agents of the coconut mite Aceria guerreronis: spatial niche use and intraguild predation

Lawson-Balagbo¹,

Gondim

Moraes

et al. 2008

Exp Appl Acarol

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The eriophyid mite Aceria guerreronis occurs in most coconut growing regions of the world and causes enormous damage to coconut fruits. The concealed environment of the fruit perianth under which the mite resides renders its control extremely difficult. Recent studies suggest that biological control could mitigate the problems caused by this pest. Neoseiulus paspalivorus and Proctolaelaps bickleyi are two of the most frequently found predatory mites associated with A. guerreronis on coconut fruits. Regarding biological control, the former has an advantage in invading the tight areas under the coconut fruit perianth while the latter is more voracious on the pest mites and has a higher reproductive capacity. Based on the idea of the combined use/release of both predators on coconut fruits, we studied their compatibility in spatial niche use and intraguild predation (IGP). Spatial niche use on coconut fruits was examined on artificial arenas mimicking the area under the coconut fruit perianth and the open fruit surface. Both N. paspalivorus and P. bickleyi preferentially resided and oviposited inside the tight artificial chamber. Oviposition rate of P. bickleyi and residence time of N. paspalivorus inside the chamber were reduced in the presence of a conspecific female. Residence of N. paspalivorus inside the chamber was also influenced by the presence of P. bickleyi. Both N. paspalivorus and P. bickleyi preyed upon each other with relatively moderate IGP rates of adult females on larvae but neither species yielded nutritional benefits from IGP in terms of adult survival and oviposition. We discuss the relevance of our findings for a hypothetic combined use of both predators in biological control of A. guerreronis.

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Status of coconut mite Aceria guerreronis and biological control research in Sri Lanka

Cited by 20 publications

References 8 publications

Population dynamics of Aceria guerreronis Keifer (Acari: Eriophyidae) and associated predators on coconut fruits in Northeastern Brazil

Population dynamics of Aceria guerreronis Keifer (Acari: Eriophyidae) and associated predators on coconut fruits in Northeastern Brazil

Status of Aceria guerreronis Keifer (Acari: Eriophyidae) as a Pest of Coconut in the State of Sao Paulo, Southeastern Brazil

Compatibility of Neoseiulus paspalivorus and Proctolaelaps bickleyi, candidate biocontrol agents of the coconut mite Aceria guerreronis: spatial niche use and intraguild predation

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