| Title: | "Post-fumigation sub-lethal activities of phosphine and ethyl formate on survivorship, fertility and female sex pheromone production of Callosobruchus chinensis (L.)" |
| Author(s): | Chiluwal K; Lee BH; Kwon TH; Kim J; Park CG; |
| Address: | "Nepal Agricultural Research Council, Directorate of Agricultural Research, Lumle, Kaski, Gandaki Province, Nepal. knchilu@gmail.com. Institute of Quality and Safety Evaluation of Agricultural Products, Kyungpook National University, 80 Daehak-Ro, Buk-Gu, Daegu, 41566, Republic of Korea. USDA-ARS PBARC, 64 Nowelo, St. Hilo, HI, 96720, USA. Forest Insect Pests and Disease Division, National Institute of Forest Science, Seoul, 02512, Republic of Korea. Insect-Verse Laboratory, Jinju-Daero 859-1, Jinju, 52716, Republic of Korea" |
| DOI: | 10.1038/s41598-023-30190-1 |
| ISSN/ISBN: | 2045-2322 (Electronic) 2045-2322 (Linking) |
| Abstract: | "Phosphine (PH(3)) and ethyl formate (EF), the two popular fumigant disinfectants of stored product insect pests, are primarily evaluated for their knock down effects without considering their post-fumigation sub-lethal activities. The sub-lethal activities (adult survivorship, fecundity, sterility and female sex pheromone production) of the fumigants were evaluated on a field-to-storage insect pest adzuki bean beetle, Callosobruchus chinensis (L.). The adults' survivorship and female fecundity, both were dose-dependently affected by sub-lethal PH(3) and EF fumigation exposures. Hatchability of the eggs laid by fumigated female adults were also significantly affected. Gas-chromatography mass-spectrometry analysis of solid-phase micro-extraction from virgin fumigated C. cinensis females revealed that the PH(3) LC(25) (the lethal concentration required to kill the 25% of the population) fumigated female C. chinensis released significantly less amount of the pheromone components. In contrast, EF LC(25) exposure did not affect the pheromone release. This study unveils the facts that the EF and PH(3) fumigation have detrimental bioactivities against C. chinensis. Notably, this suggests to consider the sub-lethal EF and PH(3) fumigation rather than the dose required to instantly kill all the C. chinensis individuals for disinfestation of stored adzuki bean" |
| Keywords: | Female Animals *Sex Attractants/pharmacology Pheromones Survivorship Fumigation *Coleoptera Insecta *Phosphines Fertility *Insecticides/pharmacology; |
| Notes: | "MedlineChiluwal, Kashinath Lee, Byung Ho Kwon, Tae Hyung Kim, Junheon Park, Chung Gyoo eng Research Support, Non-U.S. Gov't England 2023/03/17 Sci Rep. 2023 Mar 15; 13(1):4333. doi: 10.1038/s41598-023-30190-1" |
