|
Abstract
|
|
|---|---|
| Hyposoter didymator (Thunberg) is a koinobiont endoparasitoid that emerges from the parasitization of economically important noctuid pests. H. didymator is also considered one of the most important native biocontrol agents of noctuids in Spain. Side effects of five insecticides with very different modes of action (fipronil, imidacloprid, natural pyrethrins + piperonyl butoxide, pymetrozine and triflumuron) at the maximum field recommended rate in Spain were evaluated on H. didymator parasitizing Spodoptera littoralis Boisduval larvae and pupae of the endoparasitoid. Parasitized larvae were topically treated or ingested treated artificial diet. Parasitoid cocoons were topically treated. Host mortality when parasitized larvae were treated, as well as further development of the parasitoid surviving (eg., percentage of cocoons spun, adult emergence, hosts attacked and numbered progeny) were determined. Toxicity after treatment of parasitized larvae differed depending on the mode of exposure and insecticide. Fipronil was always highly toxic; imidacloprid killed all host insects by ingestion but was less toxic to both host and parasitoids, when administered topically; natural pyrethrins+piperonyl butoxide and triflumuron showed differing degrees of toxicity, and pymetrozine was harmless. Parasitoid cocoons provided effective protection against all the insecticides, except fipronil. | |
|
International
|
Si |
|
JCR
|
Si |
|
Title
|
J ECON ENTOMOL |
|
ISBN
|
0022 0493 |
|
Impact factor JCR
|
1,201 |
|
Impact info
|
|
|
Volume
|
|
|
|
|
|
Journal number
|
100 |
|
From page
|
1789 |
|
To page
|
1796 |
|
Month
|
SIN MES |
|
Ranking
|
|