Short and long-term effects of azadirachtin A on development and egg production of Rhodnius prolixus
| Autor: | Eloi S. Garcia, Denise Feder, José Eugênio P. Lima Gomes, Heinz Rembold |
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| Jazyk: | angličtina |
| Rok vydání: | 1990 |
| Předmět: | |
| Zdroj: | Memorias do Instituto Oswaldo Cruz, Vol 85, Iss 1, Pp 11-15 (1990) |
| Druh dokumentu: | article |
| ISSN: | 0074-0276 1678-8060 |
| DOI: | 10.1590/S0074-02761990000100002 |
| Popis: | Azadirachtin A was given through a blood meal to 4th-instar larvae and to adult females of Rhodnius prolixus. Development (ecdysis) and egg production were inhibited in a dose-dependent manner. Long-term experiments with subsequent four feedings on azadirachtin-free blood were performed with 4th-instar larvae and with adult females. Only in the low-dose azadirachtin larval groups (0.01 and 0.1 microng/ml of blood), development was partially restored; after a single 1.0 microng/ml treatment about 50% of the treated larvae were still alive 120 days later without any adult emergence. Similarly fed females had a dose-dependent lower survival and egg deposition rate. The results are discussed in relation to the mode of azadirachtin A action. |
| Databáze: | Directory of Open Access Journals |
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