The effect of early harvest on infestation rate of Bactrocera oleae (Gmelin) (Diptera: Tephritidae) as well as yield, acidity and fatty acid composition of olive oil

Topuz, Halil; Durmuşoğlu, Enver

doi:10.1007/bf03356256

Cited by 8 publications

(10 citation statements)

References 7 publications

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“…The same increase in degree‐day accumulation would result with an increase in active fruit infestation between 0.0097 and 0.0179%. This finding confirms that earlier harvesting would prevent olive fruit fly damage in fruits .…”

Section: Discussionsupporting

confidence: 85%

“…During the summer period, the eggs behavior is characterized by a remarkable increase of mortality because of high temperature and this makes the eggs most susceptible stage to the high summer temperature [37]. High temperatures and low humidity prevent female maturation in summer months [5]. Explained conditions are probably the main reason why the fruit infestation of The data were obtained from Koprivnjak et al [13] b)…”

Section: Discussionmentioning

confidence: 99%

“…It is present in all olive growing areas in the Mediterranean countries . Adults prefer to feed on nectar, honey dew, and other opportunistic sources of liquid or semi‐liquid food . The larvae feed on mesocarp tissue, boring galleries inside the fruit, and allowing infestations of bacteria and fungi .…”

Section: Introductionmentioning

confidence: 99%

“…Numerous studies reported that the model of the early harvest reduces infection and damage of the olive fruit fly at the most possible lowest level. Optimal harvesting time is the most important factor that determines the olive oil quality and quantity .…”

Section: Introductionmentioning

confidence: 99%

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Reduction of olive fruit fly damage by early harvesting and impact on oil quality parameters

Rojnić¹,

Bažok

Barčić³

2014

Euro J Lipid Sci & Tech

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Olive fly population was monitored weekly on two olive cultivars (Buža and Istarska bjelica), from June until mid October, in Rovinj and Livade (Istria, Croatia). The number of eggs, larvae, and pupae was established and the total and active infestation was calculated. The fruit infestations for early and for late harvesting were obtained based on the calculated regression equation. For the prediction of the changes in the oil quality parameters linear regression slopes, obtained by Koprivnjak et al., were used. We established a strong positive correlation between DD accumulation and cumulative capture of flies, as well as with the total and active fruit infestations. According to obtained results it can be stated that I. bjelica is less sensitive to decrease in total phenols amount, to increase in free fatty acids mass ratio and to increase in peroxide values comparing to Buža. Moreover, the differences in investigated parameters between earlier and late harvesting dates in I. bjelica are lower due to lower infestation predicted for both harvesting dates and due to lower sensitivity to the changes in quality parameters. Therefore, early harvesting date as a model for preventing fruit damage and as a model for preventing negative change in oil quality parameters is a valid tool. However, the effectiveness of this model could also depend on the characteristics of olive cultivar. Practical applications: Understanding the factors that affect the olive fly attack is the basis of scientific and practical interest in the production of olives and olive oil. Research of monitoring methods allows reliable forecasting and determining protection measures. Knowledge about this topic could contribute to the reduction of insecticides use and to the improvement of quality and food safety concept in olive oil production. Damaged olive fruits are proved to directly affect the quantitative and qualitative properties of olive oils. The most important fruit damage is caused by the olive fly (Bactrocera oleae Gmelin).

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Section: Discussionsupporting

confidence: 85%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Reduction of olive fruit fly damage by early harvesting and impact on oil quality parameters

Rojnić¹,

Bažok

Barčić³

2014

Euro J Lipid Sci & Tech

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“…On the other hand, a weak negative correlation was observed between the altitude and infestation rate (Pearson correlation: -0.206; P = 0.01). Topuz and Durmuşoğlu (2008) found that the adult population of olive fruit fly was low in July and August and reached the highest level at the end of the October. The infestation rate was observed parallel to the adult population densities.…”

Section: Discussionmentioning

confidence: 96%

Occurrence, damage, and population dynamics of the olive fruit fly ( Bactrocera oleae Gmelin) in the Turkish Republic of Northern Cyprus

Helvacı¹,

Aktaş²,

Özden³

2018

Turk J Agric For

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Introduction Olive tree (Olea europaea L.) is a member of the family Oleaceae, which is reported to have originated in Mesopotamia (including Southeast Anatolia) (Sakar and Ünver, 2016). Today, olive and olive oil productions are important elements of the Mediterranean cuisine (Delgado-Pertinez et al., 2000; Owen et al., 2000; Ercişli et al., 2011). Olive fruits are traditionally known to the beneficial for human health and are either consumed as oil or table olives (Medeiros, 2001). Ninety-eight percent of the world's olive trees are situated in the Mediterranean region (Öztürk et al., 2009). Historically, the islands of Cyprus and Crete are known as the origins of olives (Tozlu, 2007). Although many old cultivars are still cultivated to some extent in Northern Cyprus, the most cultivated cultivar is the local variety for both oil and table olives, and cultivar Gemlik is also being produced (Tozlu et al., 2011). Olive trees can host many different insects, both pest and beneficial. Olive fruit fly (Bactrocera oleae Gmel.) (Diptera; Tephritidae) is a key pest of olive fruit, and if not adequately controlled, extensive crop losses may reach as high as 80% in oil-producing areas and 100% in areas growing table olive varieties (Tabic et al., 2011). Recent research in southern Crete during 2006 analyzed the effect of olive fruit fly infestation on olive oil acidity in an organic olive orchard using McPhail traps. This research showed that infestation rates were the lowest and not significantly different during July, August, and September; however, although the means for October and November were significantly higher than those for July, the infestation rates were still very low at 3.6% and 3.1%, respectively (Volakakis et al., 2008). In 2008, additional research on olive fruit fly control using OLIPE traps in Israel compared the efficiency of the homemade OLIPE trap with a commercial Fruitect trap at 11 locations in Jordan, Israel, and Palestine, and the presence of the olive flies and infestation levels were compared. The nonsignificant influence found between the 2 traps for all of the parameters measured could have resulted from the small plots, variability among study sites, low infestation levels, or actual trap inefficiency (Tabic et al., 2011). In the Adana region of Turkey, Bozbuğa and Ulusoy (2008) conducted studies to determine population

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The estimation of optimal harvesting period for olives, based on losses in the physical and mechanical properties caused by olive fruit fly infestation at different orchard altitudes

Sakin

2022

Int J Trop Insect Sci

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The effect of early harvest on infestation rate of Bactrocera oleae (Gmelin) (Diptera: Tephritidae) as well as yield, acidity and fatty acid composition of olive oil

Cited by 8 publications

References 7 publications

Reduction of olive fruit fly damage by early harvesting and impact on oil quality parameters

Reduction of olive fruit fly damage by early harvesting and impact on oil quality parameters

Occurrence, damage, and population dynamics of the olive fruit fly ( Bactrocera oleae Gmelin) in the Turkish Republic of Northern Cyprus

The estimation of optimal harvesting period for olives, based on losses in the physical and mechanical properties caused by olive fruit fly infestation at different orchard altitudes

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