Repellent activity of desiccant dusts and conidia of the entomopathogenic fungus Beauveria bassiana when tested against poultry red mites (Dermanyssus gallinae) in laboratory experiments
Autor: | Ole Kilpinen, Tove Steenberg |
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Rok vydání: | 2016 |
Předmět: |
0106 biological sciences
0301 basic medicine Mite Infestations Dermanyssus gallinae Beauveria bassiana repellence 01 natural sciences Conidium Toxicology 03 medical and health sciences Mite Animals Beauveria Pest Control Biological Acari Acaricides Poultry Diseases Mites Ecology biology behavior Acaricide fungi Dust Humidity General Medicine Spores Fungal biology.organism_classification diatomaceous earth respiratory tract diseases 010602 entomology 030104 developmental biology Agronomy Animal ecology Insect Science parasite Entomopathogenic fungus Chickens |
Zdroj: | Kilpinen, O & Steenberg, T 2016, ' Repellent activity of desiccant dusts and conidia of the entomopathogenic fungus Beauveria bassiana when tested against poultry red mites ( Dermanyssus gallinae ) in laboratory experiments ', Experimental & Applied Acarology, vol. 70, no. 3, pp. 329-341 . https://doi.org/10.1007/s10493-016-0085-7 |
ISSN: | 1572-9702 0168-8162 |
DOI: | 10.1007/s10493-016-0085-7 |
Popis: | Desiccant dusts and entomopathogenic fungi have previously been found to holdpotential against the poultry red mite, which is an important pest in egg production and notoriously difficult to control. Both control agents may cause repellence in other arthropods and potentially also influence control levels adversely when used against the poultry red mite. Five desiccant dust products with good efficacy against the poultry red mite Dermanyssus gallinae caused avoidance behavior in mites when tested in bioassays. The repellent activity was correlated with efficacy, which was found to depend on both dose and relative humidity (RH). However, one desiccant dust was significantly less repellent compared to other dusts with similar levels of efficacy. Further, dry conidia of the fungus Beauveria bassiana were also shown to be repellent to poultry red mites, both when applied on its own and when admixed with a low dose of the desiccant dust Diamol. The pick-up of desiccant dust particles and fungus conidia from treated surfaces by mites did not differ depending on RH, whereas the overall efficacy of the two control agents were significantly higher at 75 than at 85 % RH. In addition, the combined effect of the two substances was synergistic when tested in a bioassay where mites could choose whether tocross a treated surface. This is the first time a member of Acari has been shown to be repelled by desiccant dusts and by conidia of an entomopathogenic fungus. |
Databáze: | OpenAIRE |
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