scholarly journals Use of Early Ripening Cultivars to Avoid Infestation and Mass Trapping to Manage Drosophila suzukii (Diptera: Drosophilidae) in Vaccinium corymbosum (Ericales: Ericaceae)

2014 ◽  
Vol 107 (5) ◽  
pp. 1849-1857 ◽  
Author(s):  
Emily Hampton ◽  
Carissa Koski ◽  
Olivia Barsoian ◽  
Heather Faubert ◽  
Richard S. Cowles ◽  
...  
Keyword(s):  
Vaccinium Corymbosum ◽  
Mass Trapping ◽  
Drosophila Suzukii ◽  
Early Ripening

scholarly journals Evaluation of Monitoring Traps and Lures for Drosophila suzukii (Diptera: Drosophilidae) in Berry Plantings in Florida

Insects ◽  
2019 ◽  
Vol 10 (10) ◽  
pp. 313 ◽  
Author(s):  
Dasia S. Harmon ◽  
Muhammad Haseeb ◽  
Lambert H. B. Kanga ◽  
Oscar E. Liburd
Keyword(s):  
Production Systems ◽  
Insect Pest ◽  
Vaccinium Corymbosum ◽  
Economic Damage ◽  
Highbush Blueberry ◽  
Limited Information ◽  
Drosophila Suzukii ◽  
Trapping Period ◽  
Southern Highbush ◽  
Monitoring Traps

Drosophila suzukii (Diptera: Drosophilidae) is an invasive insect pest that was detected in Florida in August 2009 in Hillsborough County. Very limited information is available for berry growers to properly detect and monitor this serious pest in southern highbush blueberry (hybrids of Vaccinium corymbosum L. × V. darrowi Camp), rabbiteye blueberry (Vaccinium virgatum L.), and blackberry (Rubus fruticosus L.) production systems. We compared several D. suzukii traps and lures/baits at two sites in Florida. The traps evaluated included Trécé, Scentry, and a standard homemade cup trap. These traps were compared with various baits and lures, including Trécé lure, Scentry lure, yeast bait, and Suzukii trap, under Florida production systems. Early detection is important to develop an effective monitoring system so management action can be taken before economic damage occurs. Data were recorded as overall trends, as well as in 4–5 trapping periods from early to late season. Overall, the Scentry trap baited with Scentry lure, the Trécé trap baited with Trécé lure + yeast, and the Trécé trap baited with Scentry lure were the best performing traps. Yeast-based traps were also attractive to D. suzukii early in the season, but they did not provide consistent captures as the season progressed. The Scentry trap with yeast bait, the Scentry trap with Scentry lure, the Trécé trap with Trécé lure + yeast bait, and a cup trap with yeast bait caught most of the flies during the first trapping period in 2015 and 2016 in the rabbiteye blueberry. In the southern highbush blueberry, the population of D. suzukii was much lower than in the rabbiteye blueberry planting, and the Scentry trap with Scentry lure captured the highest number of flies during the first trapping period in 2016. In the blackberry, the Scentry trap with Scentry lure numerically had the highest captures during the first trapping period, but this was not significantly different from the cup trap with yeast bait, the Trécé trap baited with Suzukii trap, and the Trécé trap with Trécé lure. Overall, the Scentry trap with Scentry lure was the most consistent trap that captured D. suzukii flies throughout the season in the three production systems—rabbiteye blueberry, southern highbush blueberry, and blackberry. Growers in low pressure systems that are similar to Florida can use the Scentry trap with Scentry lure to monitor D. suzukii populations.

scholarly journals Raspberry as a Source for the Development of Drosophila suzukii Attractants: Laboratory and Commercial Polytunnel Trials

Insects ◽  
2019 ◽  
Vol 10 (5) ◽  
pp. 137 ◽  
Author(s):  
Rodrigo Lasa ◽  
Ricardo A. Toledo-Hernández ◽  
Douglas Rodríguez ◽  
Trevor Williams
Keyword(s):  
Baker’S Yeast ◽  
Spotted Wing Drosophila ◽  
Mass Trapping ◽  
Baker's Yeast ◽  
Drosophila Suzukii ◽  
Commercial Products ◽  
Apple Cider ◽  
Baited Traps ◽  
Capture Rates ◽  
Better Than

Several commercial products and home-made attractants have been developed for monitoring and mass-trapping of the spotted wing drosophila, Drosophila suzukii. Growers in Mexico have adopted an attractant based on a fermenting mixture of raspberry pulp and sucrose, with anecdotally promising results. We compared the capture rates of traps baited with raspberry pulp + sucrose with captures from a range of alternative attractants. Raspberry pulp alone or with sucrose was more attractive than apple cider vinegar (ACV) or SuzukiiTrap and similar to baker’s yeast + sucrose in laboratory cage studies. Synthetic raspberry aroma (0.1–10% concentration), in water or mixed with ACV, did not improve capture rates in the laboratory. Traps baited with raspberry + sucrose or ACV had similar captures of D. suzukii in raspberry or blackberry polytunnels in Michoacán, Mexico. Raspberry + sucrose baited traps captured significantly higher numbers of other drosophilid species, leading to higher total numbers of captured flies (all species), which may explain why Mexican growers favor the raspberry-based attractant. The commercial products SuzukiiTrap and Z-Kinol had lower captures than ACV in polytunnels, although SuzukiiTrap had the highest selectivity in captures of D. suzukii (81% of flies captured). A two-component trap (2C trap) baited with ACV + ethanol as the drowning solution and raspberry pulp + sucrose or baker’s yeast + sucrose in a ventilated tube device was markedly more effective than the trap currently used by growers. We conclude that raspberry pulp + sucrose is as effective for the attraction of D. suzukii as ACV under commercial polytunnel conditions. The 2C trap performed better than the transparent cup trap currently used by berry producers in Mexico.

Mass trapping with Decis™ Trap to manage fly control of Rhagoletis cerasi and Drosophila suzukii in IPM cherry orchards

2020 ◽  
pp. 219-226
Author(s):  
L. De Maeyer ◽  
V. Companys ◽  
M. Ricci ◽  
N. Hyzy ◽  
J. Izquierdo Casas ◽  
...  
Keyword(s):  
Mass Trapping ◽  
Drosophila Suzukii ◽  
Fly Control ◽  
Rhagoletis Cerasi

scholarly journals Current integrated pest management tactics for the spotted wing Drosophila and their practical implementation in Switzerland

2017 ◽  
Vol 32 (1) ◽  
pp. 33-39 ◽  
Author(s):  
Catherine Baroffio ◽  
Mélanie Dorsaz ◽  
Fabio Kuonen
Keyword(s):  
National Level ◽  
Spotted Wing Drosophila ◽  
Invasive Pest ◽  
Economic Losses ◽  
Practical Implementation ◽  
Mass Trapping ◽  
Drosophila Suzukii ◽  
Operative Strategy ◽  
Small Fruit ◽  
Hygiene Measures

Drosophila suzukii (Matsumura, 1931) (Diptera: Drosophilidae), the spotted wing Drosophila (SWD) is a concern for small fruit and stone fruit growers. This invasive pest lays eggs in healthy fruits with a serrated ovipositor, resulting in considerable economic losses, mainly in berry crops. In Europe, it was first recorded in Switzerland in 2011, causing considerable damage in all small fruit crops, especially in later-developing crops (autumn raspberries, blackberries, blueberries and elderberries). The pest was found in all regions of the country, from low altitudes to the timberline. The range of host plants is very broad, not only affecting crops, but also wild fruits. Switzerland has implemented a strategy at the national level by combining an effective monitoring system with hygiene measures and mass trapping. Insecticide applications, usually based on spinosyns, are only considered as a last resort. In addition to this already operative strategy, innovative alternatives are considered, in particular the use of repellents or masking substances.

scholarly journals Integrated pest management approaches against Drosophila suzukii

Italus Hortus ◽  
2019 ◽  
Vol 26 ◽  
pp. 67-75
Author(s):  
Nicola Mori ◽  
Manuel Sancassani ◽  
Fernanda Colombari ◽  
Patrizia Dall'Ara ◽  
Matteo Dal Cero ◽  
...  
Keyword(s):  
Integrated Pest Management ◽  
Pest Management ◽  
Integrated Management ◽  
Sun Exposure ◽  
Good Control ◽  
Generalist Predators ◽  
Mass Trapping ◽  
Drosophila Suzukii ◽  
Natural Habitats ◽  
Eggs And Larvae

The appearance of Drosophila suzukii in 2009 has strongly affected the cherry cultivation. Prior to SWD invasion, Italian cherry orchards were treated with only two insecticide applications, the first against aphids (Myzus cerasi Sulz.) before flowering and the second against Rhagoletis cerasi, about 20-30 days before harvest. After D. suzukii invasion, additional two-three pre-harvest (close to harvest) insecticide treatments are required, but the number of insecticide applications can increase to 5-8 depending on pest abundance, crop susceptibility and other environmental factors. The intensive use of insecticides poses serious concerns about the presence of residues on fruits exceeding maximum residue limits (MRLs), the development of resistance, and negative impacts on the environment beyond beneficials. To obtain a good and sustainable control of D. suzukii the chemical strategies should be coupled with cultural management the use of nets and parasitoids. To achieve good control of the carpophagus it is essential to monitor, as well as the adults with trap lured with blends of fermentig substances, the oviposition on the ripening fruit, because the percentage of infestation is not related to the number of catches in the food traps. Considering the viability of SWD eggs and larvae is lower under dry, warm conditions, cool humid microhabitats should be avoided by pruning to open up the canopy in order to increase airflow on the trees and reduce shading. In addition, the use of mulches reducing standing water can further contribute to the reduction of humidity in fruit orchards. Precision irrigation should also be incorporated to reduce pooling of water on the ground. Mass trapping, placing numerous traps around the perimeter outside fruit fields, is suitable and cost-effective method only for cultivations where the pest pressure is considerably low, if necessary insecticides could be applied to the surface of the traps to function as an attract-and-kill strategy. Among the sustainable protection techniques for the control of D. suzukii, the use of insect-proof nets has proved effective, reducing or completely replacing the use of insecticides in some instances, and providing high levels of exclusion of D. suzukii from the crop. During the ripening season, sanitary measures such as removal of dropped, infested and over-ripe fruits is suggested. The collection and treatment of infested fruit through sun exposure, disposal in closed containers, crushing, low temperature treatments, bagging and burying, to destroy D. suzukii eggs and larvae are Fig. 6 - Tecniche di produzione integrata per il contenimento di Drosophila suzukii Fig. 6 - Integrated production techniques for Drosophila suzukii control Integrated pest management against D. suzukii 73 essential IPM procedures to limit the infestation of healthy fruit. The augmentative release of parasitoids and conservation biocontrol of generalist predators, potentially, could contribute to the integrated management of D. suzukii populations, especially in natural habitats close to commercial crops, however further work on the effectiveness of native parasitoids and generalist predators in Europe and the USA, in the field, is required. In this paper, the integration of different tools for D. suzukii control will be discussed, in order to develop effective, eco-friendly and practical strategies in the management of the pest on cherry

scholarly journals Evolutionary shifts in taste coding in the fruit pest Drosophila suzukii

eLife ◽  
2021 ◽  
Vol 10 ◽  
Author(s):  
Hany KM Dweck ◽  
Gaëlle JS Talross ◽  
Wanyue Wang ◽  
John R Carlson
Keyword(s):  
Bitter Taste ◽  
Egg Laying ◽  
Taste Perception ◽  
Drosophila Suzukii ◽  
Ripe Fruit ◽  
Ripening Stages ◽  
Taste Sensilla ◽  
Early Ripening ◽  
Taste Coding ◽  
Taste Organ

Although most Drosophila species lay eggs in overripe fruit, the agricultural pest Drosophila suzukii lays eggs in ripe fruit. We found that changes in bitter taste perception have accompanied this adaptation. We show that bitter-sensing mutants of Drosophila melanogaster undergo a shift in egg laying preference toward ripe fruit. D. suzukii has lost 20% of the bitter-sensing sensilla from the labellum, the major taste organ of the head. Physiological responses to various bitter compounds are lost. Responses to strawberry purées are lost from two classes of taste sensilla. Egg laying is not deterred by bitter compounds that deter other species. Profiling of labellar transcriptomes reveals reduced expression of several bitter Gr genes (gustatory receptors). These findings support a model in which bitter compounds in early ripening stages deter egg laying in most Drosophila species, but a loss of bitter response contributes to the adaptation of D. suzukii to ripe fruit.

scholarly journals Postharvest Highbush Blueberry Fruit Antimicrobial Volatile Profiles in Relation to Anthracnose Fruit Rot Resistance

2007 ◽  
Vol 132 (6) ◽  
pp. 859-868 ◽  
Author(s):  
James J. Polashock ◽  
Robert A. Saftner ◽  
Matthew Kramer
Keyword(s):  
Vaccinium Corymbosum ◽  
Fruit Rot ◽  
Colletotrichum Acutatum ◽  
Postharvest Disease ◽  
Highbush Blueberry ◽  
Volatile Emissions ◽  
Wide Range ◽  
Early Ripening ◽  
Volatile Profiles ◽  
Antimicrobial Volatiles

Fruit of highbush blueberry (Vaccinium corymbosum L.) produce antimicrobial volatiles, including trans-2-hexenal, that may confer resistance to anthracnose fruit rot, an important postharvest disease caused by Colletotrichum acutatum J.H. Simmonds. To investigate whether aromatic volatiles in highbush blueberry fruit are associated with postharvest fruit rot resistance, we compared volatiles emitted from whole fruit and extracts from fruit kept in air at 20 °C for 0 to 6 days postharvest from cultivars having a wide range of resistance to anthracnose. Antimicrobial volatiles detected included the aldehydes, trans-2-hexenal and hexanal; the monoterpenes, limonene, linalool, 8-hydroxylinalool, α-terpineol, and terpinyl acetate; and the sesquiterpenes, cadinene, caryophyllene, and α-farnesene. There were significant correlations between some detected volatiles and these differed in whole fruit and extracts. Hexanal (in fruit extracts), trans-2-hexenal, terpinyl acetate, and cadinene emissions increased in most cultivars when fruit were kept in air at 20 °C for various times postharvest. Volatile emissions from whole fruit and extracts varied widely among the cultivars with early ripening cultivars generally showing higher volatile emissions than later ripening cultivars. Although the cultivars tested differed in quantities, and in some cases, the types of volatiles produced, these differences were not related to pedigree (i.e., species composition) nor to known anthracnose resistance ratings. Except for the confounded emissions of terpinyl acetate and cadinene, more than 80% of the variation observed for each volatile was attributable to the cultivar (genetic), year (environmental), and cultivar–by-year interaction. The results suggest that, although antimicrobial aldehydes and terpenes emitted from fully ripe highbush blueberry fruit and extracts might be important flavor and aroma components, they do not significantly contribute to disease resistance against anthracnose fruit rot.

scholarly journals ВМІСТ ХЛОРОФІЛІВ І КАРОТИНОЇДІВ У ПАГОНАХ ЛОХИНИ ВИСОКОРОСЛОЇ (VACCINIUM CORYMBOSUM L.)

2020 ◽  
Vol 80 (3-4) ◽  
pp. 33-38
Author(s):  
N. J. Yavorska ◽  
N. M. Vorobets
Keyword(s):  
Diethyl Ether ◽  
Dry Weight ◽  
Vaccinium Corymbosum ◽  
Biologically Active ◽  
Raw Material ◽  
Energy Needs ◽  
Urgent Task ◽  
Early Ripening ◽  
Chlorophyll A And B ◽  
The Given

Since photosynthetic pigments are not only important for plants in photosynthesis,they are also biologically active substances in therapeutic usage, the search for plants with their high content remains an urgent task of nutraceuticals, pharmacy and medicine. In this study, the shoots of Vaccinium corymbosum L. varieties Bluejay (early ripening) and Bluecrop (medium ripening) grown in the experimental area in the Lviv region of Ukraine in the phenological phases: in flowering, fruiting, after fruiting, in preparation for winter dormancy have been used. 100 % acetone, 80 % acetone and diethyl ether were used as extractants. The content of chlorophylls and carotenoids was determined spectrophotometrically at wavelengths corresponding to their absorption maxima and calculated by formulas Holm-Wettstein, Lichtenthaler, Wintermans and de Mots. The findings of the study show that the content of chlorophyll a and b in the shoots of V. corymbosum depends on the extractant and the phenological phase of growth at which the plant material is collected. The best extractant was 100 % acetone, slightly worse 80 % acetone and diethyl ether, although in general the level of chlorophylls coincided. All of the extractants used were effective enough to remove carotenoids. The content of chlorophylls and carotenoids and their ratio in the shoots of investigated varieties of V. corymbosum is high and varies during the growing season: the highest content of chlorophylls is observed during flowering: 45.45±7.384 and 37.89±2.849 mg/100 g of dry weight in Bluejay and Bluecrop respectively. The content of carotenoids increases from the flowering phase to fruiting and remains at the same level long after its completion. The highest content of carotenoids was 5.49±0.451 and 5.73±0,143 mg/100 g of dry weight in Bluejay and Bluecrop respectively. It is assumed that the dynamics of chlorophyll content reflects the increase in the level of energy needs of the plant to ensure generative reproduction during the fruiting phase, followed by preparation for changes in temperature and insolation in winter. Some evidence of this may be the increase in the ratio of chlorophylls a/b during this period. In our opinion, further research on the use of P as a medicinal raw material would be beneficial, taking into account the given results.

scholarly journals Evaluation of Southern Highbush Blueberry Cultivars for Production in Southwestern Arkansas

2002 ◽  
Vol 12 (2) ◽  
pp. 271-274 ◽  
Author(s):  
P. Manjula Carter ◽  
John R. Clark ◽  
R. Keith Striegler
Keyword(s):  
Fruit Quality ◽  
Cold Hardiness ◽  
Vaccinium Corymbosum ◽  
Highbush Blueberry ◽  
Chilling Requirement ◽  
Production Potential ◽  
Vaccinium Ashei ◽  
Early Ripening ◽  
Quality And Reliability ◽  
Southern Highbush

Southern highbush blueberry, a hybrid of northern highbush (Vaccinium corymbosum) and southern-adapted Vaccinium species, has the potential to meet the need for an early-ripening blueberry in the southern U.S. southern highbush cultivars can ripen up to one month earlier than the earliest rabbiteye (Vaccinium ashei) cultivars currently grown in the southern U.S. However, chilling requirement and cold-hardiness are cultivar-dependent for southern highbush and cultivar testing has been necessary to determine the cultivars best adapted to specific hardiness zones. In a 4-year study at Hope, Ark. (hardiness zone 7b), several southern highbush cultivars were evaluated for productivity, fruit quality and reliability of cropping. Yields were based on 1089 plants/acre (2690 plants/ha) for southern highbush cultivars and 605 plants/acre (1494 plants/ha) for rabbiteye cultivars. `Ozarkblue' and `Legacy' showed the most adaptability at this location, yielding on average 11,013 lb/acre (12,309 kg·ha-1) and 10,328 lb/acre (11,543 kg·ha-1) respectively, compared to 4882 lb/acre (5456 kg·ha-1) for `Premier' (rabbiteye) over 4 years. `Ozarkblue' and `Legacy' also rated well for plant vigor and fruit quality. We would recommend `Ozarkblue' and `Legacy' for commercial planting in southwest Arkansas and believe these cultivars have production potential for other areas of the southern U.S. that have similar hardiness zones and soil type to southwest Arkansas.

Sign in / Sign up

Export Citation Format

Share Document