| Title: | Beetle Orientation Responses of Gastrophysa viridula and Gastrophysa polygoni (Coleoptera: Chrysomelidae) to a Blend of Synthetic Volatile Organic Compounds |
| Author(s): | Piesik D; Bocianowski J; Sendel S; Krawczyk K; Kotwica K; |
| Address: | "UTP University of Science and Technology, Department of Biology and Plant Protection, Laboratory of Entomology, Bydgoszcz, Poland. Poznan University of Life Sciences, Department of Mathematical and Statistical Methods, 28 Wojska Polskiego, Poznan, Poland. Institute of Plant Protection-National Research Institute, Department of Molecular Biology and Biotechnology, 20 Wladyslawa Wegorka, Poznan, Poland. UTP University of Science and Technology, Department of Agronomy, Bydgoszcz, Poland" |
| ISSN/ISBN: | 1938-2936 (Electronic) 0046-225X (Linking) |
| Abstract: | "The invasive weed Rumex confertus Willd. (mossy sorrel) is eaten and severely defoliated by oligophagous Gastrophysa viridula Deg. (dock leaf beetle) and Gastrophysa polygoni L. (knotweed leaf beetle). The most popular methods of plant protection involve the application of chemicals, but such methods often require repeated chemical treatments. Aromatic plants may constitute an eco-friendly alternative strategy owing to their repellent properties. To date, single compounds have been tested rather than blends; however, there is a need to investigate mixtures of compounds, because insects are subjected to blends of odors derived from their surrounding environments. The aim of the current study was to investigate behavioral responses of the dock leaf beetle and knotweed leaf beetle to a blend of synthetic plant volatile organic compounds. Plants were treated with standard repellents (a blend of volatile organic compounds) at two different concentrations (10 ng min-1 and 1,000 ng min-1). For further experiments, four rates (1 ng min-1, 10 ng min-1, 100 ng min-1, and 1,000 ng min-1 in 50 microl) were evaluated using a 4-way olfactometer. Leaf beetles of both sexes were repelled by the highest three concentrations tested. Female dock leaf beetles were also repelled by the lowest concentration tested, where individual components could have occasionally attracted insects. These results indicate a difference in responses to individual compounds and mixtures of compounds" |
| Keywords: | Animals *Coleoptera Female Insecta Male *Volatile Organic Compounds Gastrophysa sp behavior odors orientation response volatile organic compounds; |
| Notes: | "MedlinePiesik, Dariusz Bocianowski, Jan Sendel, Sebastian Krawczyk, Krzysztof Kotwica, Karol eng Research Support, Non-U.S. Gov't England 2020/08/02 Environ Entomol. 2020 Oct 17; 49(5):1071-1076. doi: 10.1093/ee/nvaa082" |
