Mortality of Different Stages of Plodia interpunctella (Lepidoptera: Pyralidae) at Three Temperatures in Controlled Atmosphere of High Nitrogen
| Autor: | Dianxuan Wang, Chuqiao Chen, Fuji Jian, Yilin Huang, Dingyue Wang, Digvir S. Jayas |
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| Rok vydání: | 2020 |
| Předmět: |
0106 biological sciences
Controlled atmosphere animal structures Nitrogen media_common.quotation_subject Insect Moths Biology 010603 evolutionary biology 01 natural sciences Lepidoptera genitalia Animal science Animals media_common Pyralidae Larva Ecology Atmosphere fungi Pupa Temperature General Medicine biology.organism_classification Plodia interpunctella 010602 entomology Insect Science Instar |
| Zdroj: | Journal of Economic Entomology. 113:1105-1109 |
| ISSN: | 1938-291X 0022-0493 |
| DOI: | 10.1093/jee/toaa038 |
| Popis: | The lethal exposure time to controlled atmospheres of high nitrogen at stored grain temperatures is an important information for control of stored-product insects. The mortality of 1-d-old egg, 1-wk-old (first or second instar) larva, 3-wk-old (fourth or fifth instar) larva, and 1-d-old pupa of Plodia interpunctella (Hübner) was determined at 18 ± 1, 23 ± 1, and 28 ± 1°C in 98% N2 mixed with air. At 18°C, the lethal exposure times to achieve 100% mortality were 12.7 ± 0.7, 16.3 ± 0.3, 19.7 ± 0.7, and 14.7 ± 0.7 d for 1-d-old egg, 1-wk-old larva, 3-wk-old larva, and 1-d-old pupa, respectively. Temperature had significant effect on the lethal exposure time, and increase of the temperature significantly decreased the lethal exposure time. The order of the insect stages from the highest to lowest for LT50 values was follows: 3-wk-old larva > 1-wk-old larva > 1-d-old pupa ≥ 1-d-old egg. The minimum lethal exposure times required to kill all stages of P. interpunctella were about 20, 16, and 12 d at 18, 23, and 28°C, respectively. |
| Databáze: | OpenAIRE |
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