The effects of phenolic compounds on the abundance of olive psyllid, Euphyllura straminea Loginova in commercial and promising olive cultivars

Abstract The olive psyllid (Euphyllura straminea Loginova) has been reported as a key pest of olive in Iran. Field observations have shown that the infestation rates of various olive cultivars differ among olive psyllid. This study aimed to determine the levels of total phenol and 3,4-dihydroxypheny...

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Main Authors: Mahmoud Azimi, Aref Marouf, Seyyed E. Shafiei, Azizollah Abdollahi
Format: Article
Language:English
Published: BMC 2025-07-01
Series:BMC Plant Biology
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Online Access:https://doi.org/10.1186/s12870-025-06862-7
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author Mahmoud Azimi
Aref Marouf
Seyyed E. Shafiei
Azizollah Abdollahi
author_facet Mahmoud Azimi
Aref Marouf
Seyyed E. Shafiei
Azizollah Abdollahi
author_sort Mahmoud Azimi
collection DOAJ
description Abstract The olive psyllid (Euphyllura straminea Loginova) has been reported as a key pest of olive in Iran. Field observations have shown that the infestation rates of various olive cultivars differ among olive psyllid. This study aimed to determine the levels of total phenol and 3,4-dihydroxyphenylethanol (DHPE), as well as the horticultural traits of various olive cultivars, such as Zard, Conservolia, Arbequina, Picual, Cornicabra, Kaissy, Direh, and Koroneiki, and how they correlate with the infestation rates of the olive psyllid. The maximum and minimum numbers of psyllid nymphs were observed in the Arbequina (19.79 ± 2.28) and Direh (2.13 ± 0.38) cultivars, respectively. In contrast, the highest and lowest amounts of DHPE were recorded in the inflorescences of the Direh (11.47 ± 0.54 mg/g) and Arbequina (5.37 ± 0.30 mg/g) cultivars, respectively. Moreover, a rise in the concentration of DHPE in the inflorescences of different olive cultivars is associated with a reduction in the nymph population found within those inflorescences. A negative correlation was observed between the amount of total phenol and the number of nymphs on the inflorescence of olive cultivars. It was concluded that DHPE phenolic compounds might play an effective role in pest attack.
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spelling doaj-art-dbd1fe324f70478295b30b1aa922248e2025-08-20T03:37:20ZengBMCBMC Plant Biology1471-22292025-07-012511710.1186/s12870-025-06862-7The effects of phenolic compounds on the abundance of olive psyllid, Euphyllura straminea Loginova in commercial and promising olive cultivarsMahmoud Azimi0Aref Marouf1Seyyed E. Shafiei2Azizollah Abdollahi3Crop and Horticultural Research Department, West Azerbaijan Agricultural and Natural Resources Research Center, AREEOPlant Protection Reseach Department, Agricultural and Natural Resources Research Center of Zanjan, AREEOOlive Research Station of Tarom, Agricultural and Natural Resources Research Center of Zanjan Province (AREEO)Olive Research Station of Tarom, Agricultural and Natural Resources Research Center of Zanjan Province (AREEO)Abstract The olive psyllid (Euphyllura straminea Loginova) has been reported as a key pest of olive in Iran. Field observations have shown that the infestation rates of various olive cultivars differ among olive psyllid. This study aimed to determine the levels of total phenol and 3,4-dihydroxyphenylethanol (DHPE), as well as the horticultural traits of various olive cultivars, such as Zard, Conservolia, Arbequina, Picual, Cornicabra, Kaissy, Direh, and Koroneiki, and how they correlate with the infestation rates of the olive psyllid. The maximum and minimum numbers of psyllid nymphs were observed in the Arbequina (19.79 ± 2.28) and Direh (2.13 ± 0.38) cultivars, respectively. In contrast, the highest and lowest amounts of DHPE were recorded in the inflorescences of the Direh (11.47 ± 0.54 mg/g) and Arbequina (5.37 ± 0.30 mg/g) cultivars, respectively. Moreover, a rise in the concentration of DHPE in the inflorescences of different olive cultivars is associated with a reduction in the nymph population found within those inflorescences. A negative correlation was observed between the amount of total phenol and the number of nymphs on the inflorescence of olive cultivars. It was concluded that DHPE phenolic compounds might play an effective role in pest attack.https://doi.org/10.1186/s12870-025-06862-7Host preferenceOlive psyllid3,4-dihydroxyphenyl ethanolEuphyllura straminea
spellingShingle Mahmoud Azimi
Aref Marouf
Seyyed E. Shafiei
Azizollah Abdollahi
The effects of phenolic compounds on the abundance of olive psyllid, Euphyllura straminea Loginova in commercial and promising olive cultivars
BMC Plant Biology
Host preference
Olive psyllid
3,4-dihydroxyphenyl ethanol
Euphyllura straminea
title The effects of phenolic compounds on the abundance of olive psyllid, Euphyllura straminea Loginova in commercial and promising olive cultivars
title_full The effects of phenolic compounds on the abundance of olive psyllid, Euphyllura straminea Loginova in commercial and promising olive cultivars
title_fullStr The effects of phenolic compounds on the abundance of olive psyllid, Euphyllura straminea Loginova in commercial and promising olive cultivars
title_full_unstemmed The effects of phenolic compounds on the abundance of olive psyllid, Euphyllura straminea Loginova in commercial and promising olive cultivars
title_short The effects of phenolic compounds on the abundance of olive psyllid, Euphyllura straminea Loginova in commercial and promising olive cultivars
title_sort effects of phenolic compounds on the abundance of olive psyllid euphyllura straminea loginova in commercial and promising olive cultivars
topic Host preference
Olive psyllid
3,4-dihydroxyphenyl ethanol
Euphyllura straminea
url https://doi.org/10.1186/s12870-025-06862-7
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