Archives of Phytopathology and Plant Protection (2020) 53, 765-780

Gilda Adibmoradi, Jalal Jalali Sendi, Siavosh Tirgari, Sohrab Imani and Avid Razavi-Nematolahi (2020)
Insecticidal and morpho-physiological disorders caused by Thymus vulgaris L. essential oil on the elm leaf beetle, Xanthogaleruca luteola Müller (Coleoptera: Chrysomelidae)
Archives of Phytopathology and Plant Protection 53 (15-16), 765-780
Abstract: Elm leaf beetle, Xanthogaleruca luteola Müller (Col.: Chrysomelidae) a pest of ornamental elms. Thyme, Thymus vulgaris (Lamiaceae) is an important medicinal. In this study, effect of Thymus vulgaris L. essential oil was tested on X. luteola in laboratory. The LC ₃₀ and LC ₅₀ values were estimated by leaf dipping method to third instar larvae (LC₃₀ =2.065 and LC₅₀ =4.237% W/V). The feeding efficiency was significantly reduced in treated larvae except the approximate digestibility (94.82 in control and 98.23 in treatment). The treated larvae showed a significant reduction key biochemicals. Reduced glucose and uric acid but increased protein level was seen. Severe reduction in ovarian texture both morphologically and histologically was observed which depicts a prolonged effect of the used EO on survivors. We believe that the thyme EO has the potential to be formulated for smaller scale trial to meet the needs of an environmental friendly compound.
(The abstract is excluded from the Creative Commons licence and has been copied with permission by the publisher.)
Link to article at publishers website
Database assignments for author(s): Jalal Jalali Sendi

Research topic(s) for pests/diseases/weeds:
control - general

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Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
	Xanthogaleruca luteola	Elm (Ulmus)