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Mild Abiotic Stress Affects Development and Stimulates Hormesis of Hemp Aphid Phorodon cannabis.
Durak, Roma; Jedryczka, Malgorzata; Czajka, Beata; Dampc, Jan; Wielgusz, Katarzyna; Borowiak-Sobkowiak, Beata.
Afiliación
  • Durak R; Department of Experimental Biology and Chemistry, University of Rzeszów, Pigonia 1, 35-310 Rzeszów, Poland.
  • Jedryczka M; Institute of Plant Genetics, Polish Academy of Sciences, Strzeszynska 34, 60-479 Poznan, Poland.
  • Czajka B; Department of Entomology and Environmental Protection, Poznan University of Life Sciences, Dabrowskiego 159, 60-594 Poznan, Poland.
  • Dampc J; Department of Experimental Biology and Chemistry, University of Rzeszów, Pigonia 1, 35-310 Rzeszów, Poland.
  • Wielgusz K; Department of Breeding and Agronomy of Fibrous and Energy Plants, Institute of Natural Fibers and Medicinal Plants-National Research Institute, Wojska Polskiego 71B, 60-630 Poznan, Poland.
  • Borowiak-Sobkowiak B; Department of Entomology and Environmental Protection, Poznan University of Life Sciences, Dabrowskiego 159, 60-594 Poznan, Poland.
Insects ; 12(5)2021 May 08.
Article en En | MEDLINE | ID: mdl-34066736
ABSTRACT
The hemp aphid Phorodon cannabis Passerini is a well- known (Asia, Europe) or newly emerging (North America) insect. It is a monophagous insect pest causing considerable damage in field and glasshouse cultivations. The aim of this work was to study the effects of meteorological (temperature) and agronomical (herbicide) factors on the biology of the hemp aphid. In one experiment, hemp plants were kept at constant temperatures ranging from 20 to 30 °C, and aphid survival and fecundity were measured. In a related experiment conducted at 20 °C, plants were treated with field-appropriate rates of a selective graminicide containing quizalofop-P-tefuryl (40 gL-1, 4.38%, HRAC group 1), commonly used to control weeds in hemp, and aphid enzyme activity was measured in addition to population parameters. We found that hemp aphids could live, feed and reproduce within the whole studied range of temperatures, demonstrating its great evolutionary plasticity. However, the optimal temperature for development was 25 °C, at which the insect lived and reproduced for 25 and 15 days, respectively, with an average fecundity of 7.5 nymphs per reproduction day. The herbicide treatment increased the activity of superoxide dismutase (SOD), catalase (CAT), ß-glucosidase, S-glutathione transferase (GST), oxidoreductive peroxidase (POD), and polyphenol oxidase (PPO) in the aphids, but only on certain days after treatment, which indicates a mild stress in aphid tissues, related to a higher reproduction and changed feeding behavior; aphids moved from the actively growing tips compared to untreated plants. The results of these experiments are discussed in terms of the impact on the future management of this pest.
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Texto completo: 1 Bases de datos: MEDLINE Idioma: En Revista: Insects Año: 2021 Tipo del documento: Article País de afiliación: Polonia

Texto completo: 1 Bases de datos: MEDLINE Idioma: En Revista: Insects Año: 2021 Tipo del documento: Article País de afiliación: Polonia