The Integrated Use of Some Common Agrochemicals and Different Entomopathogenic Nematode Species in The Control of Planococcus citri (Risso, 1813) (Hemiptera: Pseudococcidae)
INTERNATIONAL JOURNAL OF TROPICAL INSECT SCIENCE, vol.0, no.0, pp.1-17, 2023 (SCI-Expanded, Scopus)
- Publication Type: Article / Article
- Volume: 0 Issue: 0
- Publication Date: 2023
- Doi Number: 10.21203/rs.3.rs-3396003/v1
- Journal Name: INTERNATIONAL JOURNAL OF TROPICAL INSECT SCIENCE
- Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, Agricultural & Environmental Science Database, Aquatic Science & Fisheries Abstracts (ASFA), BIOSIS, CAB Abstracts, Food Science & Technology Abstracts, Veterinary Science Database
- Page Numbers: pp.1-17
- Erciyes University Affiliated: Yes
Abstract
EPNs are an important component of integrated pest management(IPM) strategies and understanding
their antagonistic and synergistic interactions with other biocontrol options is of crucial importance in
promoting their use. In the current study, the antagonistic and synergistic effects of azadirachtin,
sulfoxaflor, mineral oil, and thyme oil on the survival and pathogenicity of S. bicornutum, S. carpocapsae,
H. indica, and H. bacteriaphora were investigated under controlled conditions(25 ± 1°C). The toxicity of
agrochemicals to IJs was evaluated in 12-well plates and the IJs of each EPN species (5000IJs/50µL
ddh2O) were exposed to the recommended field concentrations of agrochemicals. In the pathogenicity
tests, the agrochemical and IJs solutions were applied to potato tubers at the concentration of
3000IJs/ml. The results revealed that all tested EPN species were quite compatible with azadirachtin,
sulfoxaflor, mineral oil, and thyme oil and showed survival over 95% after 72 hours of exposure to tested
agrochemicals. EPNs and mineral oil combination induced the highest efficacy on the Planococcus citri
(Risso, 1813) (Hemiptera: Pseudococcidae) adults and all EPN species caused mortalities over 90% 72
hours after treatment except for S. bicornotum and mineral oil combination. The synergistic effect was
observed in all combinations of EPNs with agrochemicals except for thyme oil. The results indicate that
EPNs applied in combination with azadirachtin, sulfoxaflor, and mineral oil could provide more chances
for successful control of P. citri. However, further studies are required to determine the antagonistic and
synergistic effects of tested chemicals on EPNs in field conditions.