Ecology and Management of Apple Snails in Rice

Horgan, Finbarr G.

doi:10.1007/978-3-319-47516-5_15

Cited by 11 publications

(23 citation statements)

References 46 publications

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“…Adverse impacts in tropical natural wetlands include the reduction or elimination of macrophytes, changes in nutrient flux, and an increase in phytoplankton, which together disrupt the functioning of wetlands, with a shift from clear to turbid waters (Carlsson et al, ). Until now, all efforts to eradicate P. maculata and P. canaliculata have failed, and only some level of control has been achieved in reducing its impact on agriculture or reducing its spread (EFSA PLH, ; Horgan, ). The apple snail has caused significant damage to rice fields in the wetlands of the northern Ebro Delta (Figure ).…”

Section: Introductionmentioning

confidence: 99%

A native bird as a predator for the invasive apple snail, a novel rice field invader in Europe

Bertolero¹,

Navarro

2018

Aquatic Conservation

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1. Since 2009 the apple snail Pomacea maculata has become a new invader of Oryza sativa (rice) fields and wetlands in Europe, only invading the Ebro Delta (northeastern Spain) thus far. It is considered a highly invasive and damaging species, resulting in large economic losses worldwide.2. Despite the severe impact of the invasive apple snail on both cultivated and natural wetlands, it has become an abundant potential resource for native avian predators.3. In this study, stable isotope analysis was used to assess the consumption of the apple snail by the glossy ibis Plegadis falcinellus in the Ebro Delta. 4.The results indicate the importance of the apple snail in the diet of this native bird. In particular, isotopic results indicated that apple snails and freshwater coleopterans were the main prey in the diet of glossy ibis chicks, accounting for 26-40% of their diet. Thus, this native bird species could potentially help in the biological control of this invasive snail, but is not expected to eradicate it. 5. Although the spread of this pest in rice fields and wetlands is not desirable, we predict that the apple snail will follow a path similar to other invasive species, such as the red swamp crayfish Procambarus clarkii, in establishing itself as part of the wetland food web.

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Section: Introductionmentioning

confidence: 99%

A native bird as a predator for the invasive apple snail, a novel rice field invader in Europe

Bertolero¹,

Navarro

2018

Aquatic Conservation

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“…Snail damage to rice fields following the introduction of apple snails to several rice producing countries has been mainly treated using chemical molluscicides despite effective cultural control methods (Adalla and Magsino, 2006;Yanes-Figueroa et al, 2014). In fields treated with molluscicides in tropical Asia, surviving apple snails can grow rapidly, due to reduced intraspecific competition, representing a more serious threat to developing rice plants than untreated rice plots that have high-density snail populations but smaller individuals (Horgan, 2017). Farmer surveys in Ecuador have indicated that fields treated with molluscicides may also have a greater propensity for insect damage (Horgan et al, 2014b).…”

Section: Molluscicidesmentioning

confidence: 99%

“…A focus on botanical pesticides is prevalent in research on (i) storage pests, because of the need to avoid chemical contamination of foods (Isman, 2006); (ii) apple snails, because of a need to avoid chemical pesticides in water bodies (Horgan, 2017); and (iii) witchweed (Striga spp. : Orobanchaceae) -largely due to the discovery of strigolactones that can stimulate the germination of parasitic weeds and reduce their densities in the seed bank (Yoneyama et al, 2009;Dubey et al, 2010).…”

Section: Pest Management For Rice: Scientific Approachesmentioning

confidence: 99%

Integrated pest management for sustainable rice cultivation: a holistic approach

Horgan¹

2017

Burleigh Dodds Series in Agricultural Science

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“…An increasing use of molluscicides by rice farmers over the last several decades suggests that aquatic snails have become a major challenge to rice farmers in some regions (Joshi & Sebastian, ; Horgan et al ., ,b). In particular, invasive apple snails now affect rice farming activities throughout much of the humid tropics and subtropics as well as in southern Europe and the southern USA (Joshi & Sebastian, ; Horgan, ). The global extent of rice farming (Table ; Fig.…”

Section: Introductionmentioning

confidence: 99%

“…Production practices are largely determined by socio‐economic factors and are influenced by tradition and culture as well as by regional agricultural policy implemented through government and private agricultural extension services. Rice‐production practices will often determine the vulnerability of the rice crop to diseases and pests, including vulnerability to apple snails (Horgan, , ). Apple snails are found in most rice‐producing regions and systems (Table ).…”

Section: Introductionmentioning

confidence: 99%

The ecophysiology of apple snails in rice: implications for crop management and policy

Horgan

2018

Annals of Applied Biology

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This review relates the ecology and physiology of apple snails (Ampullariidae) to their impact on rice-production systems. Two species in particular, Pomacea canaliculata and Pomacea maculata, have been introduced to several rice-growing regions. Flooded rice systems represent a high-quality habitat for these apple snails because of similarities in the environmental conditions (water temperature, salinity, pH, water flow velocity) necessary for both rice production and for snail survival and development. Furthermore, amphibious respiration, a capacity to aestivate during dry periods, as well as cold acclimation and tolerance (particularly in P. canaliculata), increases the resilience of apple snails to rice farming practices, including agrochemical applications, intermittent drainage and crop rotations -under a wide range of climatic conditions. Risks to regional rice production depend on four principal factors: these are (a) regional climate, (b) regional rice-production systems, (c) prevailing production practices, and (4) the presence/absence of invasive, non-native apple snails. Based on these criteria, lowland irrigated rice in tropical and subtropical regions that is wet-direct seeded is most vulnerable to damage from both native and non-native apple snails (albeit with greater losses from non-native snails because of normally higher densities). Adequate quarantine regulations, particularly in vulnerable tropical regions that are adjacent to centres of recent outbreaks (e.g. India and Bangladesh adjacent to Myanmar, Peru and Colombia adjacent to Ecuador) and attention to the preparedness of farming systems could reduce potential impacts as these highly invasive snails continue to spread. The urgent development of labour-saving crop-establishment methods that reduce dependencies on chemical molluscicides is necessary to achieve sustainable rice production in regions at risk from non-native apple snails.

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Ecology and Management of Apple Snails in Rice

Cited by 11 publications

References 46 publications

A native bird as a predator for the invasive apple snail, a novel rice field invader in Europe

A native bird as a predator for the invasive apple snail, a novel rice field invader in Europe

Integrated pest management for sustainable rice cultivation: a holistic approach

The ecophysiology of apple snails in rice: implications for crop management and policy

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