| Autor: |
El-Helaly AA; Cairo University, Faculty of Agriculture, Department of Economic Entomology and Pesticides, Giza, Egypt., El-Masarawy MS; Cairo University, Faculty of Agriculture, Department of Economic Entomology and Pesticides, Giza, Egypt., El-Bendary HM; Fayoum University, Faculty of Agriculture, Plant Protection Department, Fayoum, Egypt. |
| Jazyk: |
angličtina |
| Zdroj: |
Brazilian journal of biology = Revista brasleira de biologia [Braz J Biol] 2021 Oct-Dec; Vol. 81 (4), pp. 899-908. Date of Electronic Publication: 2021 Nov 30. |
| DOI: |
10.1590/1519-6984.230140 |
| Abstrakt: |
Experiments were performed investigating citronella (Cymbopogon winterianus Jowitt) as a repellent to honeybee Apis mellifera (L.) (Hymenoptera: Apidae) in Egypt, it was conducted in laboratory in the Department of Entomology and Pesticides Science, Faculty of Agriculture, Cairo University, to check long-term survival of honeybee when exposed to different nano insecticides alone or combined with citronella at the same examination box for each. In this study, we used a modeling approach regarding survival data of caged worker bees under chronic exposure to four insecticides (Chloropyrophos, Nano-chloropyrophos Imidacloprid, Nano-Imidacloprid) each of them was supplemented in a box alone and in combination with citronella. Having three replicates and five concentrations (100, 200, 300, 400 and 500 ppm). Laboratory bioassay of these insecticides showed that chloropyrophos and nano chloropyrophos were the most toxic at their high dose (500 ppm) with LT50 of 120.98 and 122.02 followed by 132.14 and 136.5 minutes for Imidacloprid and Nano-Imidacloprid, respectively. No consumption occurred by bees to mixed sugar syrup with insecticides in all treatments when citronella was added. These data highly recommended that adding citronella is very effective when nicotinoid pesticides are used to longevity honeybee life and keep bee safe. |
| Databáze: |
MEDLINE |
| Externí odkaz: |
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