scholarly journals Development of spotted wing drosophila in fruits of two raspberry cultivars

2020 ◽  
Vol 23 (3-4) ◽  
pp. 77-90
Author(s):  
Ivana Pajač Živković ◽  
Darija Lemić ◽  
Boris Duralija ◽  
Aleksandar Mešić ◽  
Dana Čirjak
Keyword(s):  
Risk Assessment ◽  
Invasive Species ◽  
Spotted Wing Drosophila ◽  
Alien Invasive Species ◽  
Economic Damage ◽  
Drosophila Suzukii ◽  
Greenhouse Production ◽  
Soft Fruit ◽  
Greenhouse Cultivation ◽  
Soft Fruits

Spotted wing drosophila (Drosophila suzukii (Matsumura, 1931)) a polyphagous alien invasive species causes economic damages in cultivation of soft fruits all over the word. It is widespread in Croatia and considering that the economic damage occurred in greenhouse cultivation of soft fruit several years ago, new damage in this production can be expected. The pest development was monitored on 50 overripe fruits of cultivars 'Amira' and 'Sugana' cultivated in greenhouses in Zagreb in 2018 to investigate pest preference for these cultivars and to make a risk assessment in raspberry cultivation. Pest presence was recorded on both cultivars at the same time, and D. suzukii was dominant drosophilid species in development. Significantly more drosophilids as well as individuals of D. suzukii were developed on cultivar 'Amira'. On 'Amira' 373 female and 211 male of D. suzukii developed, while on 'Sugana' 253 female and 142 males developed. Average number of pests per fruit on 'Amira' counted 11.68 and on 'Sugana' 7.9. Drosophila suzukii develops in high populations in the greenhouse production of raspberry cultivars, which poses a serious risk for their cultivation in the study site.

scholarly journals Population dynamics of spotted wing drosophila (Drosophila suzukii) in orchards in the Zagreb area

2020 ◽  
Vol 23 (3-4) ◽  
pp. 91-102
Author(s):  
Ivana Pajač Živković ◽  
Irena Brlić Puškarić ◽  
Darija Lemić
Keyword(s):  
Invasive Species ◽  
Population Dynamics ◽  
Overlapping Generations ◽  
Host Plants ◽  
Climatic Conditions ◽  
Spotted Wing Drosophila ◽  
Drosophila Suzukii ◽  
Research Population ◽  
Zagreb Area ◽  
The City

The invasive species Drosophila suzukii (Matsumura, 1931), the spotted wing drosophila, was first recorded in Croatia in 2010. Since then, it has spread on Croatian territory but its presence has not yet been confirmed in the City of Zagreb. In this research population dynamics of D. suzukii was investigated in three orchards in Zagreb (Maksimir, Jelenovac, Zelenjak) in the period from 20th of March to 27th of November 2017. Feeding traps with apple vinegar were used for catching D. suzukii. The flight began in the period from 27th of June to 11th of July and lasted until 27th of November. The total pest catches were 874 specimens (Jelenovac 187, Maksimir 232 and Zelenjak 455). From September to November there was a continuous flight and a large increase in the number of caught flies, suggesting the presence of more overlapping generations. Besides the host plants, the development of the pest in this area is also enabled by suitable climatic conditions. The present population in the City of Zagreb County poses a danger to fruit producers in the Zagreb County. The results of this research are a contribution to better understanding of the population and the spread of the pest in Croatia.

Spatial distribution of spotted-wing drosophila (Diptera: Drosophilidae) and other insects in fruit of a sweet cherry (Rosaceae) orchard

2020 ◽  
Vol 152 (4) ◽  
pp. 450-473
Author(s):  
Amanda C. Chamberlain ◽  
Robert Lalonde ◽  
Howard M.A. Thistlewood
Keyword(s):  
Sweet Cherry ◽  
Prunus Avium ◽  
Spotted Wing Drosophila ◽  
Tree Canopy ◽  
Invasive Pest ◽  
Drosophila Suzukii ◽  
First Results ◽  
Southern Aspect ◽  
Rhagoletis Indifferens ◽  
Soft Fruits

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.

Minimizing insecticides for control of spotted wing drosophila ( Drosophila suzukii ) in soft fruit using bait sprays

2021 ◽  
Author(s):  
Ralph Noble ◽  
Adam Walker ◽  
Charles Whitfield ◽  
Adrian Harris ◽  
Andreja Dobrovin‐Pennington ◽  
...  
Keyword(s):  
Spotted Wing Drosophila ◽  
Drosophila Suzukii ◽  
Soft Fruit

Potential Ecological Distribution of Alien Invasive Species and Risk Assessment: a Case Study of Buffel Grass in Arid Regions of Mexico

2004 ◽  
Vol 18 (6) ◽  
pp. 1504-1514 ◽  
Author(s):  
LAURA ARRIAGA ◽  
ALEJANDRO E. CASTELLANOS V. ◽  
ELIZABETH MORENO ◽  
JESÚS ALARCÓN
Keyword(s):  
Risk Assessment ◽  
Invasive Species ◽  
Arid Regions ◽  
Alien Invasive Species ◽  
Ecological Distribution ◽  
Buffel Grass

The Presence and Accessibility of Competitive Resources Affect Trapping Efficiency of Spotted-Wing Drosophila (Diptera: Drosophilidae)

2020 ◽  
Author(s):  
Sandeep Singh ◽  
Juan Huang ◽  
Matthew J Grieshop
Keyword(s):  
Laboratory Experiments ◽  
Production Systems ◽  
Spotted Wing Drosophila ◽  
Trapping Efficiency ◽  
Fruit Crops ◽  
Drosophila Suzukii ◽  
Growing Seasons ◽  
Yeast Cultures ◽  
Soft Fruit ◽  
Vinegar Fly

Abstract Spotted-wing drosophila (Drosophila suzukii, (Matsumura)) is an invasive vinegar fly that has become a serious threat to soft fruit crops. Monitoring for this pest is typically performed using drowning traps baited with live yeast cultures or fermentation volatile blends. Trapping programs using these compounds provide highly variable results across production systems, geographic regions, and growing seasons. Trap competition with fruit is one hypothesis for this inconsistency. This study evaluated the trapping efficiency of yeast and wine baits in the presence and absence of small quantities of host fruits in two binary-choice laboratory experiments. The first experiment evaluated trap capture in clear 946-ml traps with easily accessible water, apple pomace, blueberry, raspberry, strawberry, cherry, or grape as competitive influences. The second experiment evaluated the same competitors, but they were made less accessible. Recapture of flies in arenas containing competitive fruit was reduced by 64–88% when fruit was ‘accessible’ and from 0 to 51% when it was ‘inaccessible’ compared with arenas containing a water competitor. All fruit types provided statistically similar levels of trap interference. In the first experiment, yeast captured more flies compared with wine, whereas in the second experiment, wine captured more flies than yeast. Our results support the hypothesis that the presence of fruit or other reproductive resources will reduce trap captures and that this reduction is likely mediated by the relative accessibility of the fruit versus the trap. Thus, attempts to develop population estimates based on traps should incorporate fruit availability/accessibility.

scholarly journals POPULATION DYNAMICS OF DROSOPHYLA SUZUKII (MATSAMURA) IN SWEET AND SOUR CHERRY ORCHARDS IN THE CENTRAL BALKANS MOUNTAIN

2021 ◽  
Vol 37 (37) ◽  
pp. 96-102
Author(s):  
Petko Minkov ◽  
◽  
Nedyalka Palagacheva ◽  
Vasiliy Dzhuvinov ◽  
◽  
...  
Keyword(s):  
Population Dynamics ◽  
Red Wine ◽  
Sweet Cherry ◽  
Sour Cherry ◽  
Spotted Wing Drosophila ◽  
Drosophila Suzukii ◽  
The Balkans ◽  
Soft Fruits

The spotted wing drosophila (SWD) Drosophila suzukii, Matsumura is a polyphagous for many stone and soft fruits species. The pest was recorded in 2014 at sweet cherry orchards in our country and has become a real pest, because SWD attack the fruit when they start to ripe. During 2017-2019 the study was carried out in the Institute of Mountain Stockbreeding and Agriculture in Troyan – Central part of the Balkans Mountain. For monitoring were used traps with red wine and apple vinegar. The first flies at the sweet cherry were found during the second decade of May and in the sour cherry - a little later, at the beginning of June, when the fruit start to ripe. The peak of the population dynamics was established in the second half of June, after which the density began to decreasing. It was found that D. suzukii was preferred more the sweet cherry fruits than sour cherry fruits.

Potential Distribution of Alien Invasive Species and Risk Assessment: a Case Study of Erwinia amylovora in China

2007 ◽  
Vol 6 (6) ◽  
pp. 688-695 ◽  
Author(s):  
Chen CHEN ◽  
Juan CHEN ◽  
Bai-shi HU ◽  
Ying-hua JIANG ◽  
Feng-quan LIU
Keyword(s):  
Risk Assessment ◽  
Invasive Species ◽  
Potential Distribution ◽  
Erwinia Amylovora ◽  
Alien Invasive Species
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