Traditional knowledge and rationale for weaver ant husbandry in the Mekong delta of Vietnam

Barzman, Marc; Mills, Nicholas J.; Cúc, Nguyễn Thị Thu

doi:10.1007/bf01530519

Cited by 49 publications

(44 citation statements)

References 8 publications

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“…Also, our results from the laboratory analysis of brix, total soluble solids, titrable acid and juice volume which are important quality parameters confirmed that the presence of O. longinoda had no effect on these fruit qualities. The parameters analyzed contribute to the sweetness of citrus fruits and thus confirm findings by Barzman et al (1996) that there is no difference between the sweetness of citrus fruits from trees with and without the weaver ant. Farmers perception corroborated by laboratory analysis suggests that the use of O. longinoda as a pest protectant will not result in any compromise on fruit quality.…”

Section: Discussionsupporting

confidence: 85%

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Farmers perception of a biological control agent, Oecophylla longinoda Latreille (Hymenoptera: Formicidae) and its effects on the quality of citrus fruits in Ghana

Abunyewah¹,

Afreh-Nuamah²,

Nboyine³

et al. 2015

Afr. J. Agric. Res.

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The red weaver ant, Oecophylla longinoda Latreille is a predator of many insect pests of tree crops and its presence in orchards is perceived to result in improved fruit quality. This study therefore sought to investigate farmers' perception of O. longinoda as a biological control agent for insect pests of citrus and its effect on fruit quality. A questionnaire-based survey was first used to investigate farmers' perception of O. longinoda in major citrus growing districts in Ghana. Field and laboratory experiments were also conducted to test the effect of the presence of the weaver ant at different densities on taste [total soluble solids (TSS), total acidity (TA) and juice volume (JV)]. The survey results showed that 56% of farmers regarded weaver ants as pests, while 40% considered them as beneficial insects. Seventy percent observed no difference in taste while 28% observed improvement in taste. With respect to fruit appearance, 42% of the respondents said O. longinoda had no effect on appearance while 50% reckoned that it negatively affected the appearance of citrus. Laboratory analyses of citrus fruits showed that O. longinoda had no significant effect on fruit qualities. The implications of these findings on the acceptance of O. longinoda by farmers and suggestions for overcoming the challenges of accepting this biological control agent are discussed.

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Section: Discussionsupporting

confidence: 85%

“…A survey in Mekong Delta of Vietnam also found the presence of Oecophylla sp. on citrus trees to be associated with increase external shine, juiciness and overall appeal of its fruits (Barzman et al, 1996).…”

Section: Introductionmentioning

confidence: 99%

Farmers perception of a biological control agent, Oecophylla longinoda Latreille (Hymenoptera: Formicidae) and its effects on the quality of citrus fruits in Ghana

Abunyewah¹,

Afreh-Nuamah²,

Nboyine³

et al. 2015

Afr. J. Agric. Res.

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“…only baited trapping and hand collection, were used during the present survey. Nest building on wet-zone cashew trees by O. smaragdina was observed during this study, as previously observed in the wet (Rickson & Rickson 1998) and arid zone (Withanage et al 2003) of Sri Lanka and in Australia (Peng et al 1997) and Vietnam (Barzman et al 1996). Although the nests of O. smaragdina were not observed on the cashew trees in the Plot 2, workers from any nest could forage on the same tree or neighbouring trees in the cashew field (Rickson & Rickson 1998).…”

Section: Taprobanae O Smaragdina T Albipes and Unknown Species Osupporting

confidence: 87%

Species Richness of Arboreal Ant Assemblages (Hymenoptera, Formicidae) and Frequency of <em>Oecophylla Smaragdina </em>(Fabricius) Occurrence in A Wet Zone Cashew (<em>Anacardium Occidentale L.</em>) Field in Sri Lanka

Dias

Perera

2016

J Sci.Univ.Kelaniya

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Ant assemblages on cashew trees in the wet zone of Sri Lanka were recorded throughout three phenological phases from March to June in 2015. Baited trapping and hand collection recorded fourteen ant species in five subfamilies and species richness observed on each occasion ranged from 7 to 11. Absence of serious cashew pests was noticeable in the current phenological cycle. Oecophylla smaragdina (Fabricius) was the only species recorded on all trees. Number of O. smaragdina nests observed on the same cashew trees in the two plots was recorded from April to June in 2015 and nests of the species were observed only on large and medium-sized trees. The materials carried by O. smaragdina workers on cashew tree branches were also collected, preserved in 70% ethanol and identified as far as possible using a Low Power Stereo-microscope and various plant and animal materials carried by workers confirmed that the species is an omnivore and a generalist predator. In the current study absence of serious damages caused by the cashew insect pests even without any insecticide application might be due to the presence of ant assemblages on cashew trees.

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“…of crops such as cashew nuts (Peng et al, 1995;Peng et al, 2004), citrus (Barzman et al, 1996) and mango (Sinzogan et al, 2008;Peng & Christian, 2005b). Therefore, Oecophylla is increasingly being utilized as a substitute to synthetic chemical pesticides as they are often equally or even more efficient in controlling pests and at the same time cheaper to use.…”

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confidence: 99%

Pupae Transplantation to Boost Early Colony Growth in the Weaver Ant Oecophylla longinoda Latreille (Hymenoptera: Formicidae)

Ouagoussounon¹,

Sinzogan²,

Offenberg³

et al. 2013

Sociobiology

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Oecophylla ants are currently used for biological control in fruit plantations in Australia, Asia and Africa and for protein production in Asia. To further improve the technology and implement it on a large scale, effective and fast production of live colonies is desirable. Early colony development may be artificially boosted via the use of multiple queens (pleometrosis) and/or by adoption of foreign pupae in developing colonies. In the present experiments, we tested if multiple queens and transplantation of pupae could boost growth in young Oecophylla longinoda colonies. Colonies with two queens artificially placed in the same nest, all perished due to queen fighting, suggesting that pleometrosis is not used by O. longinoda in Benin. In contrast, pupae transplantation resulted in highly increased growth rates, as pupae were readily adopted by the queens and showed high survival rates (mean = 92%). Within the 50-day experiment the total number of individuals in colonies with 50 and 100 pupae transplanted, increased with 169 and 387 %, respectively, compared to colonies receiving no pupae. This increase was both due to the individuals added in the form of pupae but also due to an increased per capita brood production by the resident queen, triggered by the adopted pupae. Thus pupae transplantation may be used to shorten the time it takes to produce weaver ant colonies in ant nurseries, and may in this way facilitate the implementation of weaver ant biocontrol in West Africa.

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Traditional knowledge and rationale for weaver ant husbandry in the Mekong delta of Vietnam

Cited by 49 publications

References 8 publications

Farmers perception of a biological control agent, Oecophylla longinoda Latreille (Hymenoptera: Formicidae) and its effects on the quality of citrus fruits in Ghana

Farmers perception of a biological control agent, Oecophylla longinoda Latreille (Hymenoptera: Formicidae) and its effects on the quality of citrus fruits in Ghana

Species Richness of Arboreal Ant Assemblages (Hymenoptera, Formicidae) and Frequency of <em>Oecophylla Smaragdina </em>(Fabricius) Occurrence in A Wet Zone Cashew (<em>Anacardium Occidentale L.</em>) Field in Sri Lanka

Pupae Transplantation to Boost Early Colony Growth in the Weaver Ant Oecophylla longinoda Latreille (Hymenoptera: Formicidae)

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