scholarly journals First record of spotted wing drosophila Drosophila suzukii (Diptera: Drosophilidae) in Montenegro

2015 ◽  
Vol 30 (1) ◽  
pp. 35-40 ◽  
Author(s):  
Sanja Radonjic ◽  
Snjezana Hrncic

The spotted wing drosophila Drosophila suzukii Matsumura (Diptera: Drosophilidae) is an invasive pest originating from Southeast Asia. It was detected for the first time in Europe in 2008 (Spain and Italy) and subsequently in other European countries. It is a highly polyphagous pest that infests healthy, ripening fruit and presents a serious threat to fruit production, particularly of soft skinned fruit. In the first half of October 2013, a new fruit fly species was unexpectedly detected in Tephri traps baited with the three-component female-biased attractant BioLure that is regularly used for monitoring the Mediterranean fruit fly Ceratitis capitata Wiedem. (Diptera: Tephritidae) in Montenegro. Brief visual inspection identified the new species as the spotted wing drosophila D. suzukii. The pest was first recorded in several localities on the Montenegrin seacoast around Boka Kotor Bay. After the finding, all Drosophila specimens were collected from traps for further laboratory observation. A quick follow-up monitoring of other Tephri traps was carried out within the next few days on the rest of the seacoast (localities from Tivat to Ulcinj). Additionally, Tephri traps were set up around Lake Skadar and in the city of Podgorica, as well as on fresh fruit markets in Podgorica. The results of this preliminary study showed that D. suzukii was present in all surveyed locations and adults were captured until late December. Both sexes were found in traps with BioLure. Our data show that D. suzukii is present in southern parts of Montenegro and there is a serious threat of its further spreading, particularly towards northern parts of the country where the main raspberry and blueberry production is placed. The results also show that Tephri traps baited with BioLure can be used for detection and monitoring of spotted wing drosophila.

2018 ◽  
Vol 5 (4) ◽  
pp. 63
Author(s):  
Troy Cloutier ◽  
Francis Andrew Drummond ◽  
Judith Collins

The recently introduced spotted wing drosophila is one of the most serious pests in small fruit production in the United States and Europe. Most control relies upon multiple applications of synthetic insecticides. In an effort to find less-toxic insecticides to consumers, farm workers, and wildlife, we conducted two laboratory trials and a semi-field trial in order to assess the potential for disodium octaborate tetrahydrateformulated and sold as Octabor®(U.S. Borax, Inc.) as a control for spotted wing drosophila in wild blueberry. We found that Octabor at 0.6 and 1.0% (w/v) applied to wild blueberry fruit resulted in higher mortality of flies than non-treated control fruit. Addition of sugar to Octabor enhanced mortality in one of the two trials, with an interaction between sugar addition and Octabor rate suggesting that the addition of sugar provided the greatest enhancement at the low rate. Our semi-field study showed that an apparent repellency effect of Octabor provided protection of fruit from infestation for up to 3 days. Also in the semi-field study, we observed a delayed effect on fly mortality. Increased fly mortality occurred over time, relative to the non-treated control fruit. The greatest fly mortality, relative to the non-treated control, resulted from flies being exposed to fruit treated 3 and 7 days prior to fly exposure, but not immediately after the treatment of Octabor. We speculate on why this type of delay in mortality might have occurred.    


2019 ◽  
Vol 41 (1) ◽  
Author(s):  
Ricardo Falcão de Sá ◽  
Alessandro da Silva Oliveira ◽  
Rita de Cassia Costa de Oliveira ◽  
José Carlos Marques dos Santos ◽  
Aldenise Alves Moreira ◽  
...  

Abstract Brazil is the fourth world’s largest banana (Musa spp.) producer and largest consumer. Mediterranean fruit fly Ceratitis capitata (Wiedemann, 1824) (Diptera: Tephritidae) is the main pest of quarantine importance in the exploration of fresh fruits. This species has shown wide ecological plasticity, with adaptation in several native and exotic hosts and different edaphoclimatic conditions. In November 2017 and March 2018, banana samples of AAB subgroup, Prata Anã, Prata Pacovan and Prata BRS Princesa, were collected from orchards located in the fruit producing region of São Francisco, Juazeiro, Bahia, Brazil. Fruits were sent to the laboratory for processing aimed at obtaining adults. A total of 177 tephritid pupae were obtained in Prata Anã variety, emerging 106 C. capitata adults. The total infestation rates in puparia kg fruit-1 and puparia fruit-1 were 7.45 and 0.70, respectively. Thus, the association between banana and C. capitata was recorded for the first time in Brazil and the probable implications related to this bitrophic association will be discussed.


2019 ◽  
Vol 41 (4) ◽  
Author(s):  
Nguyen Thi Oanh ◽  
Nguyen Kim Bup ◽  
Khuat Dang Long

 The eulophid wasp, Anselmella malacia Xiao & Huang, 2006 (Hymenoptera: Eulophidae), is reared from fruits of the water apple, Syzygium samarangense, and is reported as an important phytophagous developing as seed-eaters of Syzygium species in Malaysia. Analysing specimens of pest insects infested inside of pear-shaped fruits of the cultivated water apple, S. samarangense, in Dong Thap Province, South Vietnam, a total of four insect species were recorded as the important pests for fruits of six varieties of the cultivated water apples. The hymenoteran wasp, A. malacia, is recorded for the first time from Vietnam. Further evidence is needed to prove A. malacia being an invasive pest in Vietnam. The associated hymenopteran parasitoid assemblage with the fruit infested insect pests is also provided. 


2019 ◽  
Vol 113 (1) ◽  
pp. 181
Author(s):  
Špela MODIC ◽  
Primož ŽIGON ◽  
Jaka RAZINGER

The Spotted-wing drosophila (SWD), <em>Drosophila suzukii</em> (Matsumura, 1931) (Diptera, Drosophilidae) was recorded for the first time in Slovenia in autumn 2010. Shortly thereafter, it turned out to be one of the most important insect pests of soft and stone fruit in Slovenia and elsewhere. Within the expert work in the field of plant protection, more precisely within task inventarisation of beneficial organisms for biological control, the presence of indigenous <em>D. suzukii</em> parasitoids was investigated in 2018. Sentinel traps baited with <em>D. suzukii</em> larvae and pupae in banana slices enriched with artificial food medium for drosophilids were used for inventorying <em>D. suzukii</em> parasitoids in raspberries. The pupal parasitoid<em> Trichopria drosophilae </em>(Perkins, 1910)<em> </em>(Hymenoptera: Diapriidae) and the larval parasitoid <em>Leptopilina heterotoma </em>(Thompson, 1862)<em> </em>(Hymenoptera: Figitidae)<em> </em>were recorded parasitizing <em>D. suzukii</em>for the first time in Slovenia in August 2018 in Central Slovenia (Ljubljana).<p> </p><p> </p><p> </p>


2020 ◽  
Vol 113 (2) ◽  
pp. 1047-1051
Author(s):  
Shane Foye ◽  
Shawn A Steffan

Abstract The spotted-wing drosophila, Drosophila suzukii Matsumura, is an exotic species in North America and represents a major threat to fruit production. Efforts to manage D. suzukii have focused primarily on insecticides, but such controls may, at times, be unreliable, given that D. suzukii larvae are often ensconced within fruit. The fruit interior, however, may represent suitable foraging substrates for carnivorous/entomopathogenic nematodes. In preliminary trials, a rare nematode species, Oscheius onirici Torrini et al., was shown to be highly virulent against D. suzukii when the nematodes were applied directly to fly larvae. To address the more important question of whether this nematode would be as virulent when applied to fruit, we set up assays in which blueberries were infested with D. suzukii larvae and then sprayed with O. onirici infective juveniles (IJs). Across two laboratory trials, O. onirici IJs suppressed D. suzukii puparia by 78.2%. Oscheius onirici IJs were able to search effectively within fruit substrates, find the fly larvae therein, and kill the flies before they could pupariate. Oscheius onirici, therefore, may represent a viable new bio-control agent for D. suzukii management and should be field-tested across a broader diversity of cropping systems.


2021 ◽  
Vol 80 (3) ◽  
pp. 53-57
Author(s):  
Lautaro E. Bennardo ◽  
Lucas E. Kreiman ◽  
Luciano M. Gandini ◽  
Johnma J. Rondón ◽  
Lucía Turdera ◽  
...  

Here we report on the first peculiar detection of the spotted-winged drosophila, Drosophila suzukii (Matsumura) on Martín García Island, a wildlife refuge located in the Río de la Plata estuary, Argentina. Flies were collected using banana baited traps fermented with live yeast, in sandy areas with abundant presence of cactus in the interior of the island. The absence of cultivated host plants, e.g., fruit crops, and the small population of humans inhabiting the island make the presence of D. suzukii in this wildlife refuge unexpected. Previous detection of this fly in South America happened mostly within commercial fruit orchards and/or neighboring fields.


2017 ◽  
Vol 10 (3) ◽  
pp. 259-260 ◽  
Author(s):  
Ricardo Adaime ◽  
Rodrigo Souza Santos ◽  
Tatyane da Silva Azevedo ◽  
Adriana da Silva Vasconcelos ◽  
Maria do Socorro Miranda de Sousa ◽  
...  

Abstract. We report for the first time the presence of Ceratitis capitata (Wiedemann) (Diptera: Tephritidae) in the state of Acre, Brazil, reared from guava fruit (Psidium guajava L.) and star fruit (Averrhoacarambola L.). This finding increases our knowledge about the geographical records of this fruit fly in the Brazilian Amazon.Primeiro registro de Ceratitis capitata (Wiedemann) (Diptera: Tephritidae) no estado do Acre, BrasilResumo. Registra-se pela primeira vez a presença de Ceratitis capitata (Wiedemann) (Diptera: Tephritidae) no estado do Acre, Brasil, a partir de frutos de goiabeira (Psidium guajava L.) e de caramboleira (Averrhoacarambola L.), aumentando o conhecimento dos registros geográficos dessa mosca na Amazônia brasileira.


2020 ◽  
Vol 152 (4) ◽  
pp. 450-473
Author(s):  
Amanda C. Chamberlain ◽  
Robert Lalonde ◽  
Howard M.A. Thistlewood

AbstractSpotted-wing drosophila, Drosophila suzukii (Matsumura) (Diptera: Drosophilidae), is an invasive pest of many small and soft fruits. We present the first results concerning its oviposition in the canopy of a sweet cherry (Prunus avium Linnaeus; Rosaceae) orchard. We examined the distribution of arthropods emerging from fruits of five cultivars ripening successively over seven weeks, in interior and border rows, within four regions of the tree canopy (top/bottom height × north/south aspect), and measured the associated fruit ripeness (ºBrix). Single fruits were reared for more than two weeks: 1328 arthropods emerged from 887 cherries in June, and 10 426 emerged from 1071 cherries in July. When populations were low, significantly more D. suzukii were present in the northernmost row and northern canopy aspect. Later, its distribution with respect to cherry row, height, and aspect was homogenous. Drosophila suzukii density per sweet cherry was highest in the latest ripening cultivar, when its distribution was not homogeneous; significantly more D. suzukii were in the centre than the southernmost row, in the lower canopy, and the southern aspect, than elsewhere. In the early season, single egg clutches were found without aggregation. As population density increased, so did intraspecific aggregation, but D. suzukii did not co-exist with other Drosophila Fallén species, nor with Rhagoletis indifferens Curran (Diptera: Tephritidae) when present.


2018 ◽  
Vol 154 (3) ◽  
pp. 213-216
Author(s):  
C. Malumphy

The Eucalyptus leaf gall wasp, Ophelimus maskelli (Ashmead) (Hymenoptera: Eulophidae), an invasive pest of Eucalyptus spp., which has been rapidly increasing its geographical distribution, is recorded for the first time in the Canary Islands.


2020 ◽  
Vol 152 (4) ◽  
pp. 432-449
Author(s):  
William Champagne-Cauchon ◽  
Jean-Frédéric Guay ◽  
Valérie Fournier ◽  
Conrad Cloutier

AbstractDrosophila suzukii (Matsumura) (Diptera: Drosophilidae), the spotted-wing drosophila, is an invasive pest of fruit crops, which appeared in eastern Canada in 2010. It represents a major threat to lowbush blueberry (Vaccinium angustifolium Aiton; Ericaceae) in the Saguenay-Lac-Saint-Jean region, Québec, Canada, at the northern limits of its distribution. The dynamics, overwintering capacity, population fluctuations, and damage to lowbush blueberry of D. suzukii are unknown in Saguenay-Lac-Saint-Jean. We aimed to 1) document D. suzukii abundance and phenology in lowbush blueberry in separate localities; 2) evaluate the potential of D. suzukii to overwinter and examine population dynamics over three seasons; and 3) study the spatial distribution of D. suzukii in lowbush blueberry fields with respect to forested borders. Drosophila suzukii is abundant in lowbush blueberry fields of Saguenay-Lac-Saint-Jean. In spring, D. suzukii were absent until late June, when few summer-morph females appeared. Drosophila suzukii densities started to increase regularly in August, with increasing male proportions, to culminate in fall at high levels with balanced sex ratios. Overwintering remains uncertain, D. suzukii being undetectable in spring despite intensive trapping. Appearance of diapausing winter morphs at high densities indicates that D. suzukii responds appropriately to local conditions preceding cold winter. Models of variation of D. suzukii densities and lowbush blueberry fruit infestation with distance from borders indicate that forest borders are favoured habitats over lowbush blueberry fields and the source of D. suzukii moving to some extent into lowbush blueberry fields.


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