Effect of olive fruit fly infestation on the quality of olive oil from Chemlali cultivar during ripening

2010 ◽  
Vol 48 (11) ◽  
pp. 3235-3241 ◽  
Author(s):  
Faten Mraicha ◽  
Mohieddine Ksantini ◽  
Olfa Zouch ◽  
Mohamed Ayadi ◽  
Sami Sayadi ◽  
...  
Keyword(s):  
Olive Oil ◽  
Fruit Fly ◽  
Olive Fruit Fly ◽  
Olive Fruit

Green detection of the olive fruit fly pest by the direct determination of its sexual pheromone

2015 ◽  
Vol 7 (17) ◽  
pp. 7228-7233 ◽  
Author(s):  
María del Carmen Alcudia-León ◽  
Soledad Cárdenas ◽  
Miguel Valcárcel ◽  
Rafael Lucena
Keyword(s):  
Olive Oil ◽  
Direct Determination ◽  
Fruit Fly ◽  
Bactrocera Oleae ◽  
Olive Fruit Fly ◽  
Sexual Pheromone ◽  
Olive Fruit ◽  
Olive Trees

Bactrocera oleaeGmelin, the olive fruit fly, is considered a serious pest in the cultivation of olive trees since the larvae feed on the fruit damaging the productivity and quality of the final products (olive fruit and olive oil).

scholarly journals Population dynamics of pre-imaginal stages of olive fruit fly Bactrocera oleae Gmel. (Diptera, Tephritidae) in the region of Bar (Montenegro)

2013 ◽  
Vol 28 (1) ◽  
pp. 23-29 ◽  
Author(s):  
Tatjana Perovic ◽  
Snjezana Hrncic
Keyword(s):  
Population Dynamics ◽  
Developmental Stages ◽  
Fruit Fly ◽  
Bactrocera Oleae ◽  
Yield Reduction ◽  
Olive Fruit Fly ◽  
Application Timing ◽  
Olive Fruit ◽  
Fruit Drop

Olive fruit fly is the most harmful pest of olive fruits and important for oil production. Damage involves yield reduction as a consequence of premature fruit drop, but also a reduced quality of olive oil and olive products. There is little available data regarding the biology of Bactrocera oleae in Montenegro. Knowledge of the pest life cycle and development would improve optimization of insecticide application timing and protection of fruits, and reduce adverse effects on the environment. Investigation was conducted on the Zutica variety in an olive grove located in Bar during a three-year period. Population dynamics of the pre-imaginal stages and level of fruit infestation were monitored from mid-July until the end of October. The results of this three-year investigation showed that the beginning of infestation was always at the end of July. It was also found that, depending on environmental conditions, the level of infestation was low until the end of August. In September and October it multiplied, and reached maximum by the end of October. Regarding infestation structure, eggs and first instar larvae were the dominant developmental stages of the pest until the middle of September. From mid-September until mid-October all developmental stages (eggs, larvae, pupae) were equally present in infested fruits. Pupae, cocoons and abandoned galleries prevailed until the harvest.

Influence of zeolitite foliar coating on photosynthesis, VOC emission and quality of extra virgin olive oil

2021 ◽  
Author(s):  
Lucia Morrone ◽  
Luisa Neri ◽  
Osvaldo Facini ◽  
Giulio Galamini ◽  
Valeria Medoro ◽  
...  
Keyword(s):  
Olive Oil ◽  
Photosynthetic Rate ◽  
Virgin Olive Oil ◽  
Fruit Fly ◽  
Tree Canopy ◽  
Plant Responses ◽  
Slight Reduction ◽  
Olive Fruit Fly ◽  
Olive Fruit ◽  
Foliar Treatment

<p>Olive fruit fly (Bactrocera oleae) is the most dangerous pest of olive fruits and strongly impairs both quality and quantity of the resulting olive oil. Organic farms have few tools against this pest and are constantly looking for effective and sustainable products; furthermore, for conventional farms the recent ban on dimethoate use in EU, made the defence from B. oleae very difficult. In this context the use of zeolitites, applied as particle films, began to take hold.</p><p>Since particle film covers the leaves, the organs responsible for gas exchange, a study on the plant responses to zeolite foliar coating was carried out by measuring photosynthetic rates from July to October (harvest) in two orchards located at San Lazzaro di Savena and Montiano in the Emilia Romagna region (Italy), respectively under organic and conventional farming.</p><p>Plant response to foliar treatment was also evaluated by measuring oil quantity in olives fruits. The layer of particle film covering leaves and fruits reduces the attractiveness of visual cues and prevents insects from recognizing and finding the plant parts on which they lay eggs: volatile organic compounds (VOC) emitted from both leaves and olives could act as oviposition promoters and were determined as well. Finally, chemical and sensory analyses on the resulting olive oils were performed. In the San Lazzaro orchard the tested treatments were: natural zeolitite (NZ), natural zeolitite enriched with ammonium (EZ) and Spyntor Fly® (SF), a protein bait based on spinosad for the control of B. oleae. In the Montiano orchard the treatments tested were: Dimethoate (DM), an organophosphate insecticide, natural zeolite with a reduced dose of dimethoate (ZN-DM) and negative control (Test).</p><p>Photosynthetic activity of plants treated with EZ was higher than the other two treatments in all dates, while no differences in photosynthetic rate were found between SF and NZ. In the Montiano orchard a slight reduction in photosynthetic rate was found only on the last two dates. The analyses of the VOC emitted by leaves and fruits allowed to identify respectively 35 and 31 different chemical compounds, belonging mainly to the chemical classes aldehydes, alkanes and alcohol, ketones, esters, ethers and terpenes. Chemical and sensory characteristics of oils were influenced by the incidence of olive fruit fly rather than foliar treatment with zeolite. In the Montiano orchard, subjected to a severe B. oleae attack, the effectiveness of the zeolite against the pest was observed, and the oil from untreated plants showed higher chemical parameters associated with secondary oxidation phenomena. In the San Lazzaro orchard, where  a weak B. oleae attack occurred, sensory differences were recorded between treated (NZ and EZ) and untreated plants. According to the results of this study, the use of zeolite film cover on olive tree canopy do not negatively influence the plant physiology and represents a useful tool against olive fruit fly.</p>

OLIVE FRUIT FLY EFFECTS ON FREE ACIDITY AND PEROXIDES VALUE OF OLIVE OIL

2014 ◽  
pp. 281-286
Author(s):  
G. Caruso ◽  
A. Loni ◽  
A. Raspi ◽  
R. Gucci ◽  
B. Bagnoli
Keyword(s):  
Olive Oil ◽  
Fruit Fly ◽  
Olive Fruit Fly ◽  
Free Acidity ◽  
Olive Fruit

Bactrocera oleae (olive fruit fly).

2021 ◽  
Author(s):  
K Varikou
Keyword(s):  
Olive Oil ◽  
Mediterranean Basin ◽  
Oil Production ◽  
Fruit Fly ◽  
Bactrocera Oleae ◽  
Olive Fruit Fly ◽  
Table Olives ◽  
Olive Fruit ◽  
Important Pest ◽  
The Mediterranean Basin

Abstract B. oleae is considered the most important pest of cultivated olives, Olea europaea L., in many of the areas of the Mediterranean basin, affecting the quality and quantity of both olive oil and table olives (Michelakis and Neuenschwander, 1983; Manousis and Moore, 1987; Economopoulos, 2002). Unlike the fruits attacked by most other Bactrocera spp., olives containing larvae of B. oleae are frequently included in the harvested crop and subsequent oil production.

scholarly journals A Pesticide Residues Insight on Honeybees, Bumblebees and Olive Oil after Pesticidal Applications against the Olive Fruit Fly Bactrocera oleae (Diptera: Tephritidae)

Insects ◽  
2020 ◽  
Vol 11 (12) ◽  
pp. 855
Author(s):  
Kyriaki Varikou ◽  
Konstantinos M. Kasiotis ◽  
Eleftheria Bempelou ◽  
Electra Manea-Karga ◽  
Chris Anagnostopoulos ◽  
...  
Keyword(s):  
Olive Oil ◽  
Bombus Terrestris ◽  
Lethal Dose ◽  
Fruit Fly ◽  
Bactrocera Oleae ◽  
Olive Fruit Fly ◽  
Olive Fruit ◽  
The Impact ◽  
Bee Colonies ◽  
Target Effects

In 2017 and 2018, a field survey was initiated on Greek olive orchards to investigate the attractiveness of bait spray applications and the impact of cover and bait sprays applied against the olive fruit fly Bactrocera oleae (Diptera: Tephritidae), on the honeybee, Apis mellifera L. and bumblebees Bombus terrestris, by investigating the pesticides’ residual prevalence. Bee colonies were evenly distributed in three sites located on coastal areas of Western Crete and visited almost weekly between July and October. Samples collected, were analyzed using existing or developed-optimized liquid and gas chromatographic methods. In bee samples, concentrations varied from 0.0013 to 2.3 mg/kg for dimethoate, from 0.0013–0.059 mg/kg for its metabolite omethoate, and from 0.0035 to 0.63 mg/kg regarding the pyrethroids, β-cyfluthrin and λ-cyhalothrin. In one bee sample dimethoate concentration exceeded both acute oral and contact median lethal dose (LD50). Residue findings in bees, along with verified olive oil residues corroborated that those insecticides had been applied in the olive orchards and transferred to bees. The possibility of non-target effects of the bait sprays to the bees, as well as the impact of the contaminated olive to the bees are discussed.

The effect of the olive fruit fly (Bactrocera oleae) on quality parameters, and antioxidant and antibacterial activities of olive oil

2016 ◽  
Vol 7 (6) ◽  
pp. 2780-2788 ◽  
Author(s):  
Lynda Medjkouh ◽  
Abderezak Tamendjari ◽  
Sonia Keciri ◽  
Joana Santos ◽  
M. Antónia Nunes ◽  
...  
Keyword(s):  
Olive Oil ◽  
Health Effects ◽  
Fruit Fly ◽  
Antibacterial Activities ◽  
Quality Parameters ◽  
Bactrocera Oleae ◽  
Olive Fruit Fly ◽  
Olive Fruit ◽  
Olive Oils

This study shows the importance of controlling the fly attack because it causes a decrease in the beneficial health effects of olive oils.

Sign in / Sign up

Export Citation Format

Share Document