Selectivity of Organic Products to Trichogramma pretiosum Riley (Hymenoptera: Trichogrammatidae)
| Autor: | A F Pomari-Fernandes, J T Amaro, Adeney de Freitas Bueno, Pedro Manuel Oliveira Janeiro Neves |
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| Rok vydání: | 2014 |
| Předmět: |
Trichoderma
Metarhizium biology fungi Biological pest control Bacillus thuringiensis Parasitism Metarhizium anisopliae Beauveria bassiana biology.organism_classification Hymenoptera Parasitoid Toxicology chemistry.chemical_compound Trichogrammatidae chemistry Insect Science Chlorpyrifos Animals Beauveria Pest Control Biological Baculoviridae |
| Zdroj: | Neotropical entomology. 44(5) |
| ISSN: | 1678-8052 |
| Popis: | The selectivity of various entomopathogens and one insecticide (chlorpyrifos = positive control) to Trichogramma pretiosum Riley (Hymenoptera: Trichogrammatidae) was evaluated in the laboratory, using the protocol established by the Working Group on "Pesticides and Beneficial Organisms" of the IOBC. The evaluated parameters were parasitism (%), adult emergence (%), and product repellency to the parasitoid when sprayed on host eggs prior to parasitism (free-choice and no-choice tests). Most of the studied entomopathogens (Bacillus thuringiensis var. kurstaki, Bacillus thuringiensis var. aizawai, Beauveria bassiana, Metarhizium anisopliae, and Trichoderma harzianum) had no effects on biological parameters and were classified as harmless to T. pretiosum. Emergence of parasitoids (progeny viability) was reduced, but remained above 90%, when host eggs were sprayed with Baculovirus anticarsia prior to parasitism in the free-choice test, and B. anticarsia was therefore considered harmless. Chlorpyrifos (positive control) caused high adult parasitoid mortality in all bioassays. While T. pretiosum and the tested entomopathogens may be used simultaneously in integrated pest management programs, the use of chlorpyrifos should be avoided. |
| Databáze: | OpenAIRE |
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