Article
Microbiology
Catarina Campos, Luis Gomes, Fernando T. Rei, Tania Nobre
Summary: This study analyzed the microbiota of olive fruit flies and identified several persistent bacterial communities, offering new opportunities for symbiosis-based pest management.
FRONTIERS IN MICROBIOLOGY
(2022)
Article
Genetics & Heredity
Maria-Eleni Gregoriou, Martin Reczko, Evdoxia G. Kakani, Konstantina T. Tsoumani, Kostas D. Mathiopoulos
Summary: In this study, an integrated approach was used to elucidate the reproductive system and mating procedures of the olive fruit fly. RNAseq analysis revealed changes in gene expression post-mating, with functional analysis through RNAi silencing showing a significant reduction in oviposition rate. These findings provide a foundation for future investigations and development of new tools for controlling the olive fruit fly population.
Article
Computer Science, Information Systems
Nariman Mamdouh, Ahmed Khattab
Summary: This paper presents a deep learning framework for detecting and counting olive fruit flies, which utilizes data augmentation, including negative samples, and normalizing images to improve detection accuracy. The proposed framework achieves a precision of 0.84, a recall of 0.97, an F1-score of 0.9, and a mean Average Precision (mAP) of 96.68%, outperforming existing pest detection systems significantly.
Article
Biochemistry & Molecular Biology
Inga Siden-Kiamos, Venetia Koidou, Ioannis Livadaras, Evangelia Skoufa, Sevasti Papadogiorgaki, Stefanos Papadakis, George Chalepakis, Panagiotis Ioannidis, John Vontas
Summary: The olive fruit fly requires the endosymbiotic bacterium Candidatus Erwinia dacicola to complete its development in olives. The bacteria reside extracellularly in the gastric caeca of the larvae and are discharged into the midgut during the transition to late third instar larvae. The abundance of bacteria fluctuates during development, with a peak in the second instar larvae.
INSECT BIOCHEMISTRY AND MOLECULAR BIOLOGY
(2022)
Article
Entomology
Evangelia I. Balampekou, Dimitrios S. Koveos, Apostolos Kapranas, Georgios C. Menexes, Nikos A. Kouloussis
Summary: This study examined the effect of mating status, age class, and diet quality on starvation resistance in the olive fruit fly. The results showed that mating status, age, and diet had significant impacts on the fly's starvation resistance, with mated adults showing less resistance, younger adults enduring longer, and the fly feeding on a restricted diet enduring longer than those on a full diet.
Article
Biochemistry & Molecular Biology
Maja Versic Bratincevic, Ana Bego, Ivana Nizetic Kosovic, Maja Jukic Spika, Filipa Burul, Marijana Popovic, Tonka Nincevic Runjic, Elda Vitanovic
Summary: The study evaluated the release rate, duration, and biological efficiency of yeast volatile compounds associated with olive fruit flies in different dispensers. Significant differences were found in the release ratio of 2-phenethyl acetate compared to other volatiles. The attraction of olive fruit flies increased with decreasing concentrations of the tested volatiles. Rubber septa containing 2-phenethyl acetate showed better results in attracting flies compared to other compounds.
Article
Multidisciplinary Sciences
Tania Nobre
Summary: The olive fruit fly poses significant pest problems in olive growing areas and has a close evolutionary history with olive trees and symbiotic bacteria. Unique 16S haplotypes were found in the Tunisian population, indicating potential host-symbiont specificity.
Article
Multidisciplinary Sciences
Anastasia M. A. Terzidou, Dimitrios S. Koveos, Nikos T. Papadopoulos, James R. Carey, Nikos A. Kouloussis
Summary: Olive fruit flies reared in the laboratory on an artificial diet may have lower locomotor activity levels and different rest patterns compared to flies reared on olives. This difference in activity and rest patterns can affect the ability of laboratory flies to compete with wild males in the field.
Article
Entomology
G. A. Desurmont, M. Tannieres, M. Roche, A. Blanchet, N. C. Manoukis
Summary: The study tested different screen types for designing an effective augmentorium for controlling pests, and found that one screen type ('crystal mesh') was the best option, providing effective control against olive fruit fly and Mediterranean fruit fly.
JOURNAL OF INSECT SCIENCE
(2022)
Article
Biology
Manuela Rebora, Gianandrea Salerno, Silvana Piersanti, Alexander Kovalev, Stanislav Gorb
Summary: Researchers used electron and fluorescence microscopy to examine the ultrastructure and development of white patches in Bactrocera oleae. They found that the white patches are a result of modified air sacs under transparent cuticle, forming a three-dimensional photonic solid responsible for light scattering. This study sheds light on the biological role of white patches in insects and the use of structural color produced by tracheal structures.
COMMUNICATIONS BIOLOGY
(2021)
Review
Plant Sciences
Avi Sadka, Catriona H. Walker, Dor Haim, Tom Bennett
Summary: The majority of food eaten worldwide relies on the fruit and seed produced by a small number of crop plants. With the growing global population, there is an urgent need to increase yields of these crops without expanding land use or chemical inputs. Many of these crops exhibit fruit-flowering feedbacks, where early fruit production can inhibit further fruit production through various mechanisms. Understanding and overcoming these feedbacks could lead to increased crop yields without additional resources.
JOURNAL OF EXPERIMENTAL BOTANY
(2023)
Review
Biochemistry & Molecular Biology
Christina Skodra, Vaia Styliani Titeli, Michail Michailidis, Christos Bazakos, Ioannis Ganopoulos, Athanassios Molassiotis, Georgia Tanou
Summary: The olive tree is the most important perennial crop in the Mediterranean region, but olive drupe research has received less attention. Olive drupe ripening is a complex process involving numerous physiological and molecular changes. The application of -omics techniques provides a systematic description of olive fruit development and ripening.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2021)
Article
Biochemistry & Molecular Biology
Vasilij Valencic, Bojan Butinar, Maja Podgornik, Milena Bucar-Miklavcic
Summary: Olives affected by active and damaging infestation showed differences in their chemical composition, with varying amounts of compounds like biophenols and sterols. The oils from infested olives had distinct levels of various components, such as higher amounts of certain biophenols and lower amounts of specific fatty acids, depending on the severity of infestation.
Article
Chemistry, Multidisciplinary
Giandomenico Corrado, Alessandro Mataffo, Antonio P. Garonna, Rosa Rao, Boris Basile
Summary: In this study, the oviposition preferences of the olive fruit fly in six Italian olive cultivars were investigated, and the relationship between fruit size and infestation level was explored. The genetic diversity among cultivars was also assessed using SSR markers, aiming to find a potential correlation with infestation levels. The results showed a non-linear relationship between fruit size and infestation level, and co-inertia analysis revealed possible shared patterns of diversity and relationships between the genetic and infestation datasets. This study highlights the complex and diverse nature of the interaction between the olive fruit fly and its host, emphasizing the importance of understanding non-linear relationships for accurate genotypic-specific predictions and models.
APPLIED SCIENCES-BASEL
(2023)
Article
Biology
Mona Awad, Haifa Ben Gharsa, Omnia Abdullah ElKraly, Andreas Leclerque, Sherif M. M. Elnagdy
Summary: In this study, the diversity of peach fruit fly populations from Egyptian olive orchards was investigated using molecular genetic methods to understand if the fly has adapted to olives once or multiple times. The study also compared the microbiome composition of the fruit flies developing in olives and other fruits. The results suggest that the development of peach fruit flies in olives may be related to specific bacteria. These findings contribute to our understanding of similar adaptive events and the development of control strategies for the peach fruit fly.
Article
Entomology
Meredith Shrader, Hannah J. Burrack, Doug Pfeiffer
JOURNAL OF ECONOMIC ENTOMOLOGY
(2020)
Article
Agronomy
Gabriel Zilnik, Dylan A. Kraus, Hannah J. Burrack
Summary: The study found that soil applications of chlorantraniliprole are not effective for controlling early season tobacco budworm in the field and showed differences in control efficacy between the phytotron and field experiments.
Article
Multidisciplinary Sciences
Johanna E. Elsensohn, Marwa F. K. Aly, Coby Schal, Hannah J. Burrack
Summary: Female insects perceive and use complex information during oviposition site selection, with interactions varying by species and ecological niche. Larval presence and host marking influence oviposition behavior in D. suzukii, with adult marking deterring oviposition in certain conditions. These findings suggest the presence of a host marking pheromone in Drosophila and may provide insights into infestation and preference patterns within crop fields and natural areas.
SCIENTIFIC REPORTS
(2021)
Review
Entomology
Torsten Schoneberg, Margaret T. Lewis, Hannah J. Burrack, Matthew Grieshop, Rufus Isaacs, Dalila Rendon, Mary Rogers, Nikki Rothwell, Ashfaq A. Sial, Vaughn M. Walton, Kelly A. Hamby
Summary: Integrated Pest Management is a science-based process that focuses on reducing pesticide use and utilizing cultural controls to manage pests in an environmentally sustainable manner.
Article
Entomology
Gabriel Zilnik, Hannah J. Burrack
Summary: The tobacco budworm has developed resistance to various insecticides in the field, but the novel mode of action of chlorantraniliprole provides a rotation option to reduce resistance development. However, specific usage patterns in tobacco may increase resistance risk. Susceptibility studies showed that field populations were as susceptible as the laboratory strain, with some variation in larval growth inhibition.
JOURNAL OF ECONOMIC ENTOMOLOGY
(2021)
Review
Entomology
Gabriella Tait, Serhan Mermer, Dara Stockton, Jana Lee, Sabina Avosani, Antoine Abrieux, Gianfranco Anfora, Elizabeth Beers, Antonio Biondi, Hannah Burrack, Dong Cha, Joanna C. Chiu, Man-Yeon Choi, Kevin Cloonan, Cristina M. Crava, Kent M. Daane, Daniel T. Dalton, Lauren Diepenbrock, Phillip Fanning, Fatemeh Ganjisaffar, Miguel Gomez, Larry Gut, Alberto Grassi, Kelly Hamby, Kim A. Hoelmer, Claudio Ioriatti, Rufus Isaacs, Jimmy Klick, Laura Kraft, Gregory Loeb, Marco Valerio Rossi-Stacconi, Rachele Nieri, Ferdinand Pfab, Simone Puppato, Dalila Rendon, Justin Renkema, Cesar Rodriguez-Saona, Mary Rogers, Fabiana Sassu, Torsten Schoneberg, Maxwell J. Scott, Michael Seagraves, Ashfaq Sial, Steven Van Timmeren, Anna Wallingford, Xingeng Wang, D. Adeline Yeh, Frank G. Zalom, Vaughn M. Walton
Summary: Drosophila suzukii, also known as spotted-wing drosophila (SWD), is a highly adaptive pest that has caused significant economic impacts in fruit production regions worldwide. The pest's infestation leads to yield losses, shortened shelf life of fruits, and increased production costs, affecting fresh markets, frozen berries, and fruit export programs. Integrated pest management (IPM) strategies show promise in reducing chemical inputs, but require substantial changes to horticultural practices.
JOURNAL OF ECONOMIC ENTOMOLOGY
(2021)
Article
Entomology
Johanna E. Elsensohn, Coby Schal, Hannah J. Burrack
Summary: This study investigates the effects of adult crowding and spatial resource variation on oviposition rate in the invasive pest Drosophila suzukii. It suggests that oviposition behavior is more influenced by substrate than adult density, and that social interactions encourage oviposition, especially on unfamiliar or unnatural substrates. These results highlight the compensating effect of increased oviposition rate per female as adult populations decline, offering insights into population dynamics for researchers and crop managers.
JOURNAL OF ECONOMIC ENTOMOLOGY
(2021)
Article
Ecology
Laura J. Kraft, Tim L. Sit, Lauren M. Diepenbrock, Hamid Ashrafi, Rishi Aryal, Gina E. Fernandez, Hannah J. Burrack
Summary: The study focused on the feeding habits of adult Brachycera, particularly the polyphagous small fruit pest Drosophila suzukii. Molecular methods were developed to analyze adult D. suzukii gut contents, revealing differences in detection time between blueberry and blackberry meals, as well as variability between male and female gut contents. Field trials indicated that adult flies may not heavily rely on fruit food resources, as there were no significant differences in the presence of fruit DNA among collection points along transects in both locations.
FRONTIERS IN ECOLOGY AND EVOLUTION
(2021)
Article
Biology
Kumar Saurabh Singh, Erick M. G. Cordeiro, Bartlomiej J. Troczka, Adam Pym, Joanna Mackisack, Thomas C. Mathers, Ana Duarte, Fabrice Legeai, Stephanie Robin, Pablo Bielza, Hannah J. Burrack, Kamel Charaabi, Ian Denholm, Christian C. Figueroa, Richard H. Ffrench-Constant, Georg Jander, John T. Margaritopoulos, Emanuele Mazzoni, Ralf Nauen, Claudio C. Ramirez, Guangwei Ren, Ilona Stepanyan, Paul A. Umina, Nina V. Voronova, John Vontas, Martin S. Williamson, Alex C. C. Wilson, Gao Xi-Wu, Young-Nam Youn, Christoph T. Zimmer, Jean-Christophe Simon, Alex Hayward, Chris Bass
Summary: The study reveals the powerful evolutional ability of aphid Myzus persicae to develop resistance, showing a wide distribution of resistance mutations in global populations through host-plant adaptions and independent resistance mutations. The emergence and spread of these mechanisms are influenced by host-plant associations, offering new resistance mechanisms for insecticides.
COMMUNICATIONS BIOLOGY
(2021)
Article
Entomology
Rufus Isaacs, Steven Van Timmeren, Brian E. Gress, Frank G. Zalom, Fatemeh Ganjisaffar, Kelly A. Hamby, Margaret T. Lewis, Oscar E. Liburd, Nupur Sarkar, Cesar Rodriguez-Saona, Robert Holdcraft, Hannah J. Burrack, Aurora Toennisson, Francis Drummond, Nathan Spaulding, Srinivas Lanka, Ashfaq Sial
Summary: Drosophila suzukii has become a challenge in berry and cherry crop production due to its ability to lay eggs in ripening fruit. Insecticides are commonly used to prevent infestation, and this study evaluated the resistance of D. suzukii populations collected across eight U.S. states. The results showed high overall susceptibility to insecticides, but also identified populations with resistance to spinosad, highlighting the need for further testing.
JOURNAL OF ECONOMIC ENTOMOLOGY
(2022)
Article
Environmental Sciences
Adam E. Kokotovich, S. Kathleen Barnhill-Dilling, Johanna E. Elsensohn, Richard Li, Jason A. Delborne, Hannah Burrack
Summary: This study conducted a survey of 184 stakeholders to explore their views on the potential benefits and adverse effects of gene drive technology for managing spotted-wing drosophila. The results reveal that stakeholders prioritize decreases in pesticide use and spotted-wing drosophila populations as the most important benefits, while expressing concerns about potential decreases in beneficial insects, increases in secondary pest infestations, and grower profits. It emphasizes the need to move beyond simplistic views of support or opposition to the technology and consider the factors that influence stakeholder decision making.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2022)
Article
Ecology
Johanna E. E. Elsensohn, Hannah J. J. Burrack
Summary: The presence and resource use patterns of the agricultural pest Drosophila suzukii were investigated in wild blackberries and cultivated blackberries in North Carolina. The study found higher infestation levels of D. suzukii eggs in natural areas, especially in under-ripe fruit. Oviposition preference varied between wild and cultivated fruit, with higher oviposition in wild berries when equal weights of fruit were offered, but higher oviposition in cultivated berries when fruit number was equal.
ECOLOGY AND EVOLUTION
(2023)
Article
Entomology
Melissa Pulkoski, Hannah Burrack
Summary: Cannabis sativa or hemp is a specialty crop in the United States that is of interest to replace tobacco production. The most significant pests in greenhouse grown hemp are twospotted spider mite, hemp russet mite, broad mites, and cannabis aphids. This study aimed to understand the effects of feeding by spider mites and green peach aphids on the concentration of economically significant cannabinoids in greenhouse grown plants.
ENVIRONMENTAL ENTOMOLOGY
(2023)
Article
Entomology
Serhan Mermer, Marco Valerio Rossi Stacconi, Gabriella Tait, Ferdinand Pfab, Ashfaq A. Sial, Joseph O. Disi, Hannah J. Burrack, Aurora Toennisson, Lan Xue, Chengzhu Zhang, Vaughn M. Walton
Summary: In this study, semi-field cage trials were conducted in three locations in the United States to evaluate the effect of different seasonal spray regimes on Drosophila suzukii populations in blueberry and blackberry crops. The results showed that all treatment schedules resulted in reduced infestation compared to untreated control treatments, and there were no discernible differences between the two schedules in blueberry. It highlights the need for further research to determine the optimal timing and sequence of insecticide applications for controlling D. suzukii populations in fruit crops.
JOURNAL OF ECONOMIC ENTOMOLOGY
(2023)
Article
Entomology
DeShae Dillard, Dominic D. Reisig, Hayden T. Schug, Hannah J. Burrack
Summary: Studies in the lab have shown that soil moisture and other variables are important for understanding the influence of environmental factors on the pupal stage of Heliothinae. A field study comparing pupation under different soil moisture and types found that soil moisture had a significant effect on adult emergence, while soil type had no effect on pupal depth or weight. The study highlights the importance of moisture in mediating pupal position, but further research is needed to fully understand the impact of moisture on pupation.
ENVIRONMENTAL ENTOMOLOGY
(2023)