DOI: 10.16970/entoted.1845169 ISSN: 1010-6960

A new addition to the whitefly fauna of Azerbaijan: Trialeurodes lauri (Signoret, 1882) (Hemiptera: Aleyrodidae)

Gulnaz Ismaylova, Elyana Tahirova
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In this research, biophenology, life cycle, and host association of the whitefly Trialeurodes lauri (Signoret, 1882) (Hemiptera: Aleyrodidae), recorded for the first time in Azerbaijan, were studied. Research was conducted in 2017-2024 at the Applied Zoology Center (Institute of Zoology, MSERA), under the environmental conditions of Baku and the Absheron Peninsula. Field observations and laboratory analyses were used to examine seasonal development, population density, and life stages, while morphological features of the egg, and larval stages were studied using a JCM-6000 SEM. The results showed that adult emergence from pseudopupa occurs from late April to early May, depending on temperature. Larvae pass through four instars; the imago and first instar larvae are motile, whereas later instars are sessile and remain attached to the underside of leaves. Population density has been determined to be 150-300 pseudopupa (L4) per leaf. Although T. lauri is oligophagous, it has only been detected on Laurus nobilis L. (Laurales: Lauraceae) in Absheron. The species completes one generation per year and undergoes a prolonged diapause lasting about nine months. The presence of T. lauri in neighboring countries (Türkiye, Iran, and Russia) indicates a potential risk of further spread and impact on border regions.

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