Potential develop generation of the tomato leaf miner- Tuta absoluta (Meyrick) in Shida Kartly and Samtskhe-Javaxeti region of Georgia
Year: 2025
Type: article
Abstract: The tomato leaf miner- Tuta absoluta (Meyrick) (Lepidoptera: Gelechiidae) is a highly destructive insect pest to tomato plants and fruit. Other plants in the Solanacaeae family (potato, eggplant, tobacco, goji berry, etc.), and various wild solanaceous plants are also suitable hosts. T. absoluta was first found in 2011 In Georgia, quickly has spread in all regions of the country, of its high reproductive capacity and become a key pest T.absolutais spread and damaged plants in both greenhouses and open fields. In recent years the rapid growth of T. absoluta population has caused the significant damage of tomato in Georgia. Generally, in low zone and in greenhouse during vegetation season T. absoluta can develop 10-12 generations. The aim of this work was to established , phenology of T. absoluta and its develop in two geographical and climatically different region Shida Karthli (550-600 msl) and Samtskhe-Javakheti (1000-1100 msl) Region of the Western Georgia, 2020-2024, that the biological particulary of this insect can be also different. The degree-day model based on minimum and maximum temperatures reliably described the population dynamics estimated the T.absoluta completed 8-10 generations in the greenhouse tomato crop during the winter-spring growing season, where as in open-field crops the pest completed 6-7 generations on open field in spring-summer tomato in Shida Karthli. Different geographically and climatically condition in Samtskhe-Javakheti region insect develop in 4-5 generation in greenhouses condition on the tomato and 2-3 generation in open area of tomato and potato field per year.
Source: GEORGIAN SCIENTISTS
Institution: Samtskhe-Javakheti State University
Language: English
Subfield: Insect Science
Domain: Life Sciences
SDG: Zero hunger
Open Access status: diamond
OpenAlex ID: W4408182788