The Coconut Mite: Current Global Scenario

Aratchige, N.S.; Kumara, A. D. N. T.; Suwandharathne, N. I.

doi:10.1007/978-981-10-1524-3_16

Cited by 4 publications

(3 citation statements)

References 37 publications

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“…The presence of the pest was based on the availability of any of the developmental stages and symptomatic fruits. These presence records were supplemented by an extensive scientific literature search (Aratchige et al, 2016; L. C. P. Fernando et al, 2003; Howard et al, 1990; Lawson‐Balagbo et al, 2008; Navia et al, 2013), utilizing online databases, such as Web of Science, Science Direct, Google, Google Scholar, PubMed, and MEDLINE. We searched online using keywords, such as A. guerreronis , coconut mite, coconut eriophyid mites, first report, coconut pest, distribution of coconut mite, and the biology of coconut mite.…”

Section: Methodsmentioning

confidence: 99%

“…Coconut mite can be detected by a visible triangular white spot on the fertilized nuts (Mariau, 1969), found along the edge of the coconut's perianth. Mite infestations cause reductions in the yield of copra, a premature drop of coconut, reduced coconut fibre length and tensile strength, small deformed fruits, and result in a reduction in husk availability (Alam & Islam, 2014; Aratchige et al, 2016; P. P. Kumar & Ramaraju, 2010; Naseema Beevi et al, 2003; Wickramananda et al, 2007). Significant economic copra losses associated with mite infestations ranged from 10% to 16% in West Africa (Julia & Mariau, 1979), 0%–30% in Mexico (Hernandez, 1977), and 0%–31.5% in St. Lucia (Moore et al, 1989).…”

Section: Introductionmentioning

confidence: 99%

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Model‐based prediction of the potential geographical distribution of the invasive coconut mite, Aceria guerreronis Keifer (Acari: Eriophyidae) based on MaxEnt

Aidoo

Silva

Santana

et al. 2022

Agri and Forest Entomology

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The coconut mite Aceria guerreronis Keifer (Acari: Eriophyidae), is a destructive mite pest of coconut, causing significant economic losses. However, an effective pest management strategy requires a clear understanding of the geographical areas at risk of the target pest. Therefore, we predicted the potential global distribution A. guerreronis using a machine learning algorithm based on maximum entropy. The potential future distribution for A. guerreronis covered the 2040 and 2060 periods under two climate change emission scenarios (SSP1‐2.6 and SSP5‐8.5) in the context of the sixth assessment report (AR6) of the Intergovernmental Panel on Climate Change. The MaxEnt model predicts the habitat suitability for A. guerreronis outside its present distribution, with suitable habitats in Oceania, Asia, Africa, and the Americas. The habitat suitability for the pest will decrease from 2040 to 2060. The areas with the highest risk of A. guerreronis are those with an annual average temperature of around 25°C, mean annual precipitation of about 1459 mm, mean precipitation seasonality close to 64%, an average variation of daytime temperature of about 8.6°C, and mean seasonality of temperature of about 149.7°C. Our findings provide information for quarantine measures and policymaking, especially where A. guerreronis is presently still absent.

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Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Model‐based prediction of the potential geographical distribution of the invasive coconut mite, Aceria guerreronis Keifer (Acari: Eriophyidae) based on MaxEnt

Aidoo

Silva

Santana

et al. 2022

Agri and Forest Entomology

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“…Possible explanation is that A. guerreronis are not attracted (or repelled) due to volatile or non-volatile cues from the coconut varieties tested but their colonization, feeding, reproduction and survival may be affected by the presence of any chemical or non-chemical properties of the coconut varieties. In general, most of the commercial coconut varieties are damaged by A. guerreronis(Navia et al 2013;Aratchige et al 2016).…”

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confidence: 99%

Searching behaviour and the egg production of the coconut mite, Aceria guerrernis on selected coconut varieties in Sri Lanka

Wijewardene,

Aratchige,

Kumara

et al. 2023

Preprint

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Coconut is a major livelihood crop in many tropical countries in the world. Its production is affected by many biotic and abiotic factors and among the biotic factors, pests play a major role in reducing the coconut production. The coconut mite, Aceria guerreronis (Keifer) is one of the major pests of coconut in many countries causing severe yield losses including immature fruit drop, deformed fruits, empty fruits, and reduced fruit weight. Chemical and biological methods have been mostly used to control A. guerreronis. In Sri Lanka, some commercial varieties are known to show least damaged compared to other varieties. But the reason for this observation is not known. The varieties used in this study, Ran Thembili (RT), Gon Thembili (GT), Sri Lanka Green Dwarf (SLGD), Sri Lanka Yellow Dwarf (SLYD) and Sri Lanka Tall (SLT) are used as parent palms in producing hybrid coconut varieties in Sri Lanka. Therefore, it is worthwhile to understand the mechanisms behind the different susceptibility levels of these varieties to A. guerreronis and this information can be used in selecting parental palms in future breeding for A. guerreronis tolerant/resistant coconut varieties. Therefore, the experiments reported in this paper were conducted to understand whether different coconut varieties provide volatile or non-volatile cues for A. guerreronis or whether their egg production is affected by different varieties. The preference of A. guererronis towards the coconut varieties RT, GT, SLGD, SLYD and SLT were tested on a 5-arm runway arena and the egg production was also measured on young fruits of the above varieties. The results revealed that A. guererronis do not prefer any of the varieties tested. Their egg production was higher on RT compared to SLYD and SLT. Although A. guerreronis populations and their damages were shown to be higher on SLGD and SLT in previous study, it was not reflected in the egg production on them in the present study. Therefore, we conclude that volatile or non-volatile cues of different coconut varieties do not provide signals for A. guerreronis to select certain coconut varieties over other varieties and their egg production is affected by the coconut varieties. However, apparently susceptible coconut varieties (SLGD and SLT) are not preferred by A. guerreronis for the selection for colonization or for the egg production. Other physical barriers in different coconut varieties such as the shape of the fruits and perianth tightness appear to affect the varietal susceptibility of coconut varieties to A. guerreronis.

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