scholarly journals Survey of Florida Olive Groves during Olive Fruit Development: Monitoring for Stink Bugs and Olive Fruit Flies

2021 ◽  
Vol 104 (4) ◽  
Author(s):  
Eleanor F. Phillips ◽  
Sandra A. Allan ◽  
Jennifer L. Gillett-Kaufman
Keyword(s):  
Fruit Development ◽  
Fruit Flies ◽  
Stink Bugs ◽  
Olive Fruit ◽  
Olive Groves

scholarly journals Olive Landscape Affects Bactrocera Oleae Abundance, Movement and Damage

2021 ◽  
Author(s):  
Marta Quero Ortega ◽  
Natalia Moreno ◽  
Cristina E. Fernández ◽  
Susana Pascual
Keyword(s):  
Landscape Structure ◽  
Fruit Fly ◽  
Bactrocera Oleae ◽  
Olive Fruit Fly ◽  
Olive Grove ◽  
Olive Fruit ◽  
Distance Analysis ◽  
Cost Distance ◽  
Olive Groves ◽  
The Relationship

Abstract The olive fruit fly, Bactrocera oleae (Rossi) (Diptera: Tephritidae), is a key pest of olive groves. Because of its economic importance and problems associated with chemical control, new approaches to reduce the damage caused by this pest and a deeper knowledge of the biology of the insect and the relationship of landscape structure to different biological parameters are needed. B. oleae can fly long distances and its ability to move within the landscape can determine the damage caused to olive groves. This work evaluates the effect of landscape structure on olive fruit fly abundance, movements and damage at three times of year—spring, early autumn and late autumn—in central Spain. This area is less dominated by olive groves than southern Spain, where the relationship between olive grove area and B. oleae abundance is already known. A cost-distance analysis is used to evaluate the landscape effect on the movement of the fly along the crop cycle. The olive grove area is the landscape composition factor with the greatest effect on the parameters studied, with a decrease in B. oleae abundance in a more complex landscape during spring and early autumn. The cost-distance analysis shows that the olive fruit fly moves mainly in spring, and amongst olive groves. There is no evidence that land uses other than olive groves serve as a summer refuge for B.oleae in the studied landscape context. Olive grove area and land use diversity index had significant effects on olive damage in more than one year.

scholarly journals Regulation of On-Tree Vitamin E Biosynthesis in Olive Fruit during Successive Growing Years: The Impact of Fruit Development and Environmental Cues

2016 ◽  
Vol 7 ◽  
Author(s):  
Egli C. Georgiadou ◽  
Vlasios Goulas ◽  
Thessaloniki Ntourou ◽  
George A. Manganaris ◽  
Panagiotis Kalaitzis ◽  
...  
Keyword(s):  
Vitamin E ◽  
Fruit Development ◽  
Environmental Cues ◽  
Olive Fruit ◽  
The Impact

Characterization of fungi associated with olive fruit rot and olive oil degradation in Crete, southern Greece

Plant Disease ◽  
2021 ◽  
Author(s):  
Emmanouil Alexandros Markakis ◽  
Emmanouil N. Roditakis ◽  
Georgios S. Kalantzakis ◽  
Anastasia Chatzaki ◽  
Stefanos K. Soultatos ◽  
...  
Keyword(s):  
Fungal Infection ◽  
Olive Oil ◽  
Fusarium Solani ◽  
Fruit Rot ◽  
Olive Fruit Fly ◽  
Sequencing Analysis ◽  
Oil Degradation ◽  
Olive Fruit ◽  
Olive Groves ◽  
Southern Greece

In November 2019, a severe outbreak of fruit rot was observed in olive orchards in Crete, southern Greece. Symptoms appeared primarily on fruits and stalks, resembling those caused by anthracnose. Typical symptoms were fruit rot, shrinkage and mummification, associated commonly with stalk discoloration and fruit drop. Disease incidence was estimated up to 100% in some cases and an unprecedented increase in olive oil acidity reaching up to 8% (percentage of oleic acid) in severely affected olive groves was recorded. Thirty-two olive groves were then surveyed, and samples of fruit, stalk, leaf and shoot were collected. Visual, stereoscopic and microscopic observations revealed several fungi belonging to the genera Alternaria, Botryosphaeria, Capnodium, Colletotrichum, Fusarium and Pseudocercospora. Fungal infection in fruits was commonly associated with concomitant infestation by the olive fruit fly Bactrocera oleae along with increased air temperature and relative humidity conditions that prevailed in October-November 2019. Twenty representative fungal strains isolated from symptomatic fruits and stalks were characterized by morphological, physiological and molecular analyses. By rDNA-ITS region and EF1-α gene sequencing analysis, these isolates were identified as Alternaria spp., A. infectoria, Botryosphaeria dothidea, Colletotrichum boninense sensu lato, Fusarium lateritium, F. solani species complex and Stemphylium amaranthi. Pathogenicity tests on punctured fruits revealed that all isolates were pathogenic; however F. solani isolates along with B. dothidea were the most virulent and wounds were necessary for efficient fungal infection. Moreover, as little as 10 spores of F. solani were sufficient of causing significant infection in punctured fruits. Fusarium solani was also capable of infecting olive fruits in the presence of B. oleae, with no additional wounding, in artificial inoculation experiments. Moreover, it was capable of colonizing and affecting olive blossoms. Further analyses in olive oil extracted from fruits artificially inoculated with F. solani indicated a significant increase in oil acidity, K232, K270 and peroxide value, whereas total phenols content was significantly decreased. To the best of our knowledge, this is the first report of Fusarium solani associated with olive fruit rot and olive oil degradation worldwide.

IRRIGATION DIFFERENTLY AFFECTS ENDOCARP AND MESOCARP GROWTH DURING OLIVE FRUIT DEVELOPMENT

2011 ◽  
pp. 297-302 ◽  
Author(s):  
R. Gucci ◽  
G. Caruso ◽  
H.F. Rapoport ◽  
E.M. Lodolini
Keyword(s):  
Fruit Development ◽  
Olive Fruit

scholarly journals Temporal and transient expression of stearoyl-ACP carrier protein desaturase gene during olive fruit development

1998 ◽  
Vol 49 (327) ◽  
pp. 1661-1669 ◽  
Author(s):  
K. Haralampidis ◽  
D. Milioni ◽  
J. Sanchez ◽  
M. Baltrusch ◽  
E. Heinz ◽  
...  
Keyword(s):  
Transient Expression ◽  
Fruit Development ◽  
Carrier Protein ◽  
Desaturase Gene ◽  
Olive Fruit

scholarly journals Sphingolipid Distribution, Content and Gene Expression during Olive-Fruit Development and Ripening

2018 ◽  
Vol 9 ◽  
Author(s):  
Carla Inês ◽  
Maria C. Parra-Lobato ◽  
Miguel A. Paredes ◽  
Juana Labrador ◽  
Mercedes Gallardo ◽  
...  
Keyword(s):  
Gene Expression ◽  
Fruit Development ◽  
Olive Fruit ◽  
Fruit Development And Ripening

Developing green insecticides to manage olive fruit flies? Ingestion toxicity of four essential oils in protein baits on Bactrocera oleae

2020 ◽  
Vol 143 ◽  
pp. 111884 ◽  
Author(s):  
Roberto Rizzo ◽  
Gabriella Lo Verde ◽  
Milko Sinacori ◽  
Filippo Maggi ◽  
Loredana Cappellacci ◽  
...  
Keyword(s):  
Essential Oils ◽  
Fruit Flies ◽  
Bactrocera Oleae ◽  
Olive Fruit

Phenolic profiles of eight olive cultivars from Algeria: effect ofBactrocera oleaeattack

2018 ◽  
Vol 9 (2) ◽  
pp. 890-897 ◽  
Author(s):  
Lynda Medjkouh ◽  
Abderezak Tamendjari ◽  
Rita C. Alves ◽  
Rahima Laribi ◽  
M. Beatriz P. P. Oliveira
Keyword(s):  
Olive Oil ◽  
Fruit Development ◽  
Oil Production ◽  
Bactrocera Oleae ◽  
Olive Fruit ◽  
Olive Fly ◽  
Olive Cultivars ◽  
Phenolic Profiles

Olive fly (Bactrocera oleaeR.) affects olive fruit development and olive oil production.

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