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Biocontrol of ticks by entomopathogenic nematodes: Research update
Year:
2000
Authors :
Glazer, Itamar
;
.
Volume :
916
Co-Authors:

Samish, M., Department of Entomology, Kimron Veterinary Institute, Bet Dagan 50250, Israel
Alekseev, E., Department of Entomology, Kimron Veterinary Institute, Bet Dagan 50250, Israel

Facilitators :
From page:
589
To page:
594
(
Total pages:
6
)
Abstract:
Entomopathogenic nematodes (EPNs) are lethal to ticks even though they do not use their normal propagation cycle within tick cadavers. The tick Boophilus annulatus was found to be far more susceptible to EPNs than Hyalomma excavatum, Rhipicephalus bursa, or Rhipicephalus sanguineus. Ticks seem to be less susceptible to nematodes when feeding on a host. Preimaginal tick stages were less susceptible to nematodes than adult ticks. The mortality rate of unfed females was highest, followed by unfed males, and engorged females. The virulence of nematodes to ticks varied greatly among different nematode strains. In most cases, the Heterorhabditis sp. strains were the most virulent strains tested in petri dishes. In buckets containing sandy soil sprayed with 50 nematodes/cm2 and engorged B. annulatus females, the LT50 of the ticks was less than five days. The addition of manure to soil or a manure extract to petri dishes reduced nematode virulence. Since ticks spend most of their life cycle in the upper humid layer of the ground, and many nematode strains share this same ecological niche, the use of EPNs for biocontrol of ticks appears promising.
Note:
Related Files :
Acari
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Conference paper
Female
Ixodes
Male
Nematoda
ticks
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More details
DOI :
Article number:
0
Affiliations:
Database:
Scopus
Publication Type:
Conference paper
;
.
Language:
English
Editors' remarks:
ID:
29581
Last updated date:
02/03/2022 17:27
Creation date:
17/04/2018 00:48
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Scientific Publication
Biocontrol of ticks by entomopathogenic nematodes: Research update
916

Samish, M., Department of Entomology, Kimron Veterinary Institute, Bet Dagan 50250, Israel
Alekseev, E., Department of Entomology, Kimron Veterinary Institute, Bet Dagan 50250, Israel

Biocontrol of ticks by entomopathogenic nematodes: Research update
Entomopathogenic nematodes (EPNs) are lethal to ticks even though they do not use their normal propagation cycle within tick cadavers. The tick Boophilus annulatus was found to be far more susceptible to EPNs than Hyalomma excavatum, Rhipicephalus bursa, or Rhipicephalus sanguineus. Ticks seem to be less susceptible to nematodes when feeding on a host. Preimaginal tick stages were less susceptible to nematodes than adult ticks. The mortality rate of unfed females was highest, followed by unfed males, and engorged females. The virulence of nematodes to ticks varied greatly among different nematode strains. In most cases, the Heterorhabditis sp. strains were the most virulent strains tested in petri dishes. In buckets containing sandy soil sprayed with 50 nematodes/cm2 and engorged B. annulatus females, the LT50 of the ticks was less than five days. The addition of manure to soil or a manure extract to petri dishes reduced nematode virulence. Since ticks spend most of their life cycle in the upper humid layer of the ground, and many nematode strains share this same ecological niche, the use of EPNs for biocontrol of ticks appears promising.
Scientific Publication
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