Articles
Insecticidal effect of plant extract of lemon-scented tea tree (Leptospermum petersonii B.) on Leptinotarsa decemlineata Say (Col.: Chrysomelidae)
Article number
1269_32
Pages
245 – 250
Language
English
Abstract
In this study, the efficacy of extracts obtained from Leptospermum petersonii Bailey (Myrtaceae) on Leptinotarsa decemlineata Say (CPB, Coleoptera: Chrysomelidae) using two different methods was investigated.
Bioassays were used to determine the effect of varying concentrations (0.05, 0.1, 0.3, 0.4 and 0.5%) of extracts.
Experiments were carried out using 3 cm diameter leaf disks of Solanum tuberosum L. (Solanaceae). Third instar larvae of about 30-35 mg weight were used in leaf disc dipping and larvae dipping methods.
In addition, the effects of extract on L. decemlineata reproductive capacity was investigated.
For this purpose, 3- to 5-day-old adults were used.
The highest effect occurred at concentration 0.5% while the smallest effect was at 0.05%. In leaf dipping method, the extract of 0.5% concentration showed the highest mortality in the larval stage (92%). In the larva dipping method, mortality at the same concentrations was 88%. At the lowest concentration, females laid lower numbers of eggs compared to the untreated.
Bioassays were used to determine the effect of varying concentrations (0.05, 0.1, 0.3, 0.4 and 0.5%) of extracts.
Experiments were carried out using 3 cm diameter leaf disks of Solanum tuberosum L. (Solanaceae). Third instar larvae of about 30-35 mg weight were used in leaf disc dipping and larvae dipping methods.
In addition, the effects of extract on L. decemlineata reproductive capacity was investigated.
For this purpose, 3- to 5-day-old adults were used.
The highest effect occurred at concentration 0.5% while the smallest effect was at 0.05%. In leaf dipping method, the extract of 0.5% concentration showed the highest mortality in the larval stage (92%). In the larva dipping method, mortality at the same concentrations was 88%. At the lowest concentration, females laid lower numbers of eggs compared to the untreated.
Authors
P. Erdogan, E. Hassan
Keywords
plant extract, insecticidal effect, fecundite, Colorado potato beetle
Groups involved
- Division Temperate Tree Fruits
- Division Vine and Berry Fruits
- Division Tropical and Subtropical Fruit and Nuts
- Division Ornamental Plants
- Division Vegetables, Roots and Tubers
- Commission Banana
- Division Horticulture for Development
- Division Precision Horticulture and Engineering
- Division Plant Genetic Resources, Breeding and Biotechnology
- Division Plant-Environment Interactions in Field Systems
- Division Postharvest and Quality Assurance
- Division Greenhouse and Indoor Production Horticulture
- Division Landscape and Urban Horticulture
- Division Horticulture for Human Health
- Commission Cultivar Registration
- Division Temperate Tree Nuts
- Commission Agroecology and Organic Farming Systems
Online Articles (39)