Euzophera bigella (Zeller) (Lepidoptera: Pyralidae) and Dasineura oleae (F. Low) (Diptera: Cecidomyiidae): Emerging olive crop pests in the Mediterranean?

Simoglou, K. B.; Karataraki, Aggeliki; Roditakis, N. E.; Roditakis, Emmanouil

doi:10.1007/s10340-012-0418-1

Cited by 22 publications

(19 citation statements)

References 21 publications

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“…Global climate change is influencing the geographical distributions and phenology of many insect species [13] , [14] , [15] , [16] , some of which are major crop pests. Such changes will inevitably lead to the appearance of new pests in some areas and changes to the biology of well established pests in others [17] , [18] , [19] , [20] , Guo et al [21] found that higher temperatures can lead to earlier egg hatching and eclosion in three Inner Mongolian grasshopper species [ Dasyhippus barbipes (Fischer de Waldheim), Oedaleus asiaticus B. Bienko, and Chorthippus fallax (Zubovsky)], which will likely extend their distribution northward as climate change continues. Another good example is the diamondback moth.…”

Section: Introductionmentioning

confidence: 99%

Identification of the Key Weather Factors Affecting Overwintering Success of Apolygus lucorum Eggs in Dead Host Tree Branches

Pan

Liu

et al. 2014

PLoS ONE

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Understanding the effects of weather on insect population dynamics is crucial to simulate and forecast pest outbreaks, which is becoming increasingly important with the effects of climate change. The mirid bug Apolygus lucorum is an important pest on cotton, fruit trees and other crops in China, and primarily lays its eggs on dead parts of tree branches in the fall for subsequent overwintering. As such, the eggs that hatch the following spring are most strongly affected by ambient weather factors, rather than by host plant biology. In this study, we investigated the effects of three major weather factors: temperature, relative humidity and rainfall, on the hatching rate of A. lucorum eggs overwintering on dead branches of Chinese date tree (Ziziphus jujuba). Under laboratory conditions, rainfall (simulated via soaking) was necessary for the hatching of overwintering A. lucorum eggs. In the absence of rainfall (unsoaked branches), very few nymphs successfully emerged under any of the tested combinations of temperature and relative humidity. In contrast, following simulated rainfall, the hatching rate of the overwintering eggs increased dramatically. Hatching rate and developmental rate were positively correlated with relative humidity and temperature, respectively. Under field conditions, the abundance of nymphs derived from overwintering eggs was positively correlated with rainfall amount during the spring seasons of 2009–2013, while the same was not true for temperature and relative humidity. Overall, our findings indicate that rainfall is the most important factor affecting the hatching rate of overwintering A. lucorum eggs on dead plant parts and nymph population levels during the spring season. It provides the basic information for precisely forecasting the emergence of A. lucorum and subsequently timely managing its population in spring, which will make it possible to regional control of this insect pest widely occurring in multiple crops in summer.

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Section: Introductionmentioning

confidence: 99%

Identification of the Key Weather Factors Affecting Overwintering Success of Apolygus lucorum Eggs in Dead Host Tree Branches

Pan

Liu

et al. 2014

PLoS ONE

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“…In Greece, the polyphagous moth Euzophera bigella (Zeller) (Lepidoptera: Pyralidae) was noticed for the first time infesting the olive tree in 2011. Strong infestations were recorded in the province of Amphipolis with few cases of tree death [100]. The reasons for this outbreak were not investigated; however, Simoglou et al (2012) [100] hypothesized a combination of climate alterations as the main driver.…”

Section: Olive Mothsmentioning

confidence: 99%

“…Strong infestations were recorded in the province of Amphipolis with few cases of tree death [100]. The reasons for this outbreak were not investigated; however, Simoglou et al (2012) [100] hypothesized a combination of climate alterations as the main driver.…”

Section: Olive Mothsmentioning

confidence: 99%

“…Under increasing temperature (atmosphere and soil), the olive tree starts suffering, and the production of secondary metabolites and other plant defensive traits (e.g., the phenomena of "talking tree" (host-host) and "crying for help" (host-parasitoids)) may be affected [2]. This may cause a disequilibrium of the tritrophic interaction and the consequent occurrence of pest outbreaks [2,100]. The tritrophic interaction of Dasienura oleae (Diptera: Cecidomyiidae), its parasitoids and the olive tree could be hypothetically altered by global heating.…”

Section: Figurementioning

confidence: 99%

“…The recent outbreaks of Dasineura oleae (Angelini) (Diptera: Cecidomyiidae) in several Mediterranean regions prompted the consideration of this gall pest as a serious threat for the olive grove [ 100 , 105 , 106 , 107 , 108 ]. Little is known about this species, since before these outbreaks it has never been assumed as problematic [ 108 ].…”

Section: Influence Of Climate On Some Of the Major Secondary Pests Of O Europaeamentioning

confidence: 99%

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Climate Change and Major Pests of Mediterranean Olive Orchards: Are We Ready to Face the Global Heating?

Caselli

Petacchi

2021

Insects

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Evidence of the impact of climate change on natural and agroecosystems is nowadays established worldwide, especially in the Mediterranean Basin, an area known to be very susceptible to heatwaves and drought. Olea europaea is one of the main income sources for the Mediterranean agroeconomy, and it is considered a sensitive indicator of the climate change degree because of the tight relationship between its biology and temperature trend. Despite the economic importance of the olive, few studies are nowadays available concerning the consequences that global heating may have on its major pests. Among the climatic parameters, temperature is the key one influencing the relation between the olive tree and its most threatening parasites, including Bactrocera oleae and Prays oleae. Therefore, several prediction models are based on this climatic parameter (e.g., cumulative degree day models). Even if the use of models could be a promising tool to improve pest control strategies and to safeguard the Mediterranean olive patrimony, they are not currently available for most O. europaea pests, and they have to be used considering their limits. This work stresses the lack of knowledge about the biology and the ethology of olive pests under a climate change scenario, inviting the scientific community to focus on the topic.

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A new PCR based molecular method for early and precise quantification of parasitization in the emerging olive pest Dasineura oleae

Magagnoli

Tondini

Ratti

et al. 2022

Pest Management Science

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BACKGROUND Dasineura oleae (Angelini 1831) (Diptera: Cecidomyiidae) was considered a minor pest in olive orchards, but in recent years severe outbreaks have been registered in several Mediterranean countries. Damage is caused by the feeding activity of larvae that induce gall formations and alters the physiological activity of the leaves. In Italy, this pest may be controlled by four Hymenoptera parasitoid species belonging to Platygaster and Mesopolobus genera such as Platygaster demades Walker 1835, Platygaster oleae Szelenyi 1940 (Hymenoptera: Platygastridae), Mesopolobus aspilus (Walker 1835) and Mesopolobus mediterraneus (Mayr 1903) (Hymenoptera: Pteromalidae), but parasitization becomes evident only after gall dissection. RESULTS In this study, we aim to: (i) design a primer for the detection of specimens belonging to Platygaster and Mesopolobus genera; (ii) develop a multiplex quantitative polymerase chain reaction (qPCR) protocol combined to a fast samples DNA extraction method; (iii) apply the developed protocol to field‐collected specimens and compare this method with traditional techniques based on visual estimation of parasitism rate on larvae. Primers were designed to anneal with cytochrome oxidase subunit I (COI) sequences of Platygaster and Mesopolobus genera while protocols were developed to be fast and capable to process several samples at the same time. Molecular analyses demonstrated to provide almost double of the parasitism rate assessed by visual inspection. Furthermore, on second instar larvae the PCR‐based method was able to detect ten‐fold times the parasitization rate estimated by visual inspection. CONCLUSION The application on a greater scale of this newly developed method could be fundamental in the determination of the biological control potential in olive orchards.

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Euzophera bigella (Zeller) (Lepidoptera: Pyralidae) and Dasineura oleae (F. Low) (Diptera: Cecidomyiidae): Emerging olive crop pests in the Mediterranean?

Abstract: The olive is one of the most important crops in Greece as in many Mediterranean countries. Several insects are considered serious pests of the olive crop.

Cited by 22 publications

References 21 publications

Identification of the Key Weather Factors Affecting Overwintering Success of Apolygus lucorum Eggs in Dead Host Tree Branches

Identification of the Key Weather Factors Affecting Overwintering Success of Apolygus lucorum Eggs in Dead Host Tree Branches

Climate Change and Major Pests of Mediterranean Olive Orchards: Are We Ready to Face the Global Heating?

A new PCR based molecular method for early and precise quantification of parasitization in the emerging olive pest Dasineura oleae

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