Journal ArticleDOI
Entomogenous fungi as promising biopesticides for tick control.
Godwin P. Kaaya,Shawgi M. Hassan +1 more
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Both aqueous and oil-based formulations were found to be effective, although the latter induced higher mortalities.Abstract:
When ticks were sealed in nylon tetrapacks and infected with the entomogenous fungi, Beauveria bassiana and Metarizium anisopliae and maintained in potted grass in the field, the fungal oil formulations (109 conidia per ml) induced 100% mortality in larvae of Rhipicephalus appendiculatus and Amblyomma variegatum, whereas mortalities in nymphs varied between 80–100% and in adults 80–90%. The aqueous formulations (109 conidia per ml) induced mortalities of 40–50% and reductions in egg hatchability of 68% (B. bassiana) and 48% (M. anisopliae) when sprayed on Boophilus decoloratus engorging on cattle. The strains of B. bassiana and M. anisopliae isolated from naturally infected ticks were also found to induce high mortalities in both R. appendiculatus and A.variegatum in tetrapacks placed in potted grass. Both aqueous and oil-based formulations were found to be effective, although the latter induced higher mortalities. These fungal strains in aqueous formulation (108 conidia per ml) suppressed on-host populations of adult R. appendiculatus by 80% (B. bassiana) and 92% (M. anisopliae) when sprayed on tick-infested grass once per month for a period of 6 months. The feasibility of using entomogenous fungi for tick control in the field is discussed.read more
Citations
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Journal ArticleDOI
Importance of ticks and their chemical and immunological control in livestock.
TL;DR: The medical and economic importance of ticks has long been recognized due to their ability to transmit diseases to humans and animals, which are of great economic importance world-wide.
Journal ArticleDOI
Metarhizium anisopliae enzymes and toxins.
TL;DR: Some of the progress accumulated specially in M. anisopliae is focused on and an overview of the host infection process is given to help access more efficient strains from the biodiversity and to optimize formulation for large scale use of this efficient, economic and environmental safer form of insect plague control.
Journal Article
Upcoming and future strategies of tick control: a review.
TL;DR: Besides tick vaccine, use of endosymbionts, which are essential for the survival of arthropod hosts, for the control of tick vectors will be one of the targeted areas of research in near future.
Journal ArticleDOI
Biological control of ticks.
TL;DR: The most promising entomopathogenic fungi appear to be Metarhizium anisopliae and Beauveria bassiana, strains of which are already commercially available for the control of some pests.
References
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Book
The epidemiology of theileriosis in Africa
TL;DR: The contents of this book span from the fascinating 'whodunit' detective work of early investigators in the 1900s to the control methods listed in Chapter II that offer the potential to 'undo it', and the two final chapters on modeling and economic impact acknowledge the broad perspective in which efforts to control the disease are now set.
Journal ArticleDOI
Sustainable tick and tickborne disease control in livestock improvement in developing countries
TL;DR: The work of FAO in this field is presented and it is advocated that a stage has been reached where robust integrated TTBD control schemes, based on ecological and epidemiological knowledge of ticks and their associated diseases, can be promoted and implemented.
Journal ArticleDOI
Prospects for biological control of livestock ticks, Rhipicephalus appendiculatus and Amblyomma variegatum, using the entomogenous fungi Beauveria bassiana and Metarhizium anisopliae.
TL;DR: Both Beauveria bassiana and Metarhizium anisopliae induced approximately 30% mortalities in adult Rhipicephalus appendiculatus feeding on rabbits while M. anispliae induced a mortality of 37% in adult Amblyomma variegatum and both fungal species induced reductions in engorgement weights, fecundity, and egg hatchability in adult A. variegata.
Journal ArticleDOI
The use of entomogenous fungi for pest control and the role of toxins in pathogenesis
TL;DR: The biology of entomogenous fungi is examined, highlighting their need for moisture, and studies on the Entomophthoraceae, Beauveria bassiana, Beauversia brongniartii, Metarhizium anisopliae and Verticillium lecanii are reviewed.
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Prospects for biological control of livestock ticks, Rhipicephalus appendiculatus and Amblyomma variegatum, using the entomogenous fungi Beauveria bassiana and Metarhizium anisopliae.
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