נגישות
menu      
חיפוש מתקדם
תחביר
חפש...
הספר "אוצר וולקני"
אודות
תנאי שימוש
ניהול
קהילה:
אסיף מאגר המחקר החקלאי
פותח על ידי קלירמאש פתרונות בע"מ -
Control of tick populations by spraying Metarhizium anisopliae conidia on cattle under field conditions -2011
Year:
2011
Source of publication :
Experimental and Applied Acarology
Authors :
גינדין, גלינה
;
.
גלזר, איתמר
;
.
סמיש, מיכאל
;
.
Volume :
55
Co-Authors:
Kaaya, G.P., Department of Animal Science, University of Namibia, Private Bag, 13301 Windhoek, Namibia
Samish, M., ARO, The Volcani Centre, P.O. Box 6, 50250 Bet Dagan, Israel
Hedimbi, M., Department of Biological Sciences, University of Namibia, Private Bag, 13301 Windhoek, Namibia
Gindin, G., ARO, The Volcani Centre, P.O. Box 6, 50250 Bet Dagan, Israel
Glazer, I., ARO, The Volcani Centre, P.O. Box 6, 50250 Bet Dagan, Israel
Facilitators :
From page:
273
To page:
281
(
Total pages:
9
)
Abstract:
Conidia of the entomopathogenic fungus, Metarhizium anisopliae, in oil/water formulation (1 × 10 8 conidia/ml) were sprayed at 3 weekly intervals on Rhipicephalus evertsi evertsi and Rhipicephalus (Boophilus) decoloratus ticks while feeding on Afrikana bulls grazing in paddocks for a period of 1 year. The fungus reduced the on-host tick populations by 83% 3 month after commencement of the experiment. The formulation by itself had only minimal effect on the tick population. Tick populations and fungal efficacy were highest at the peaks of rainfall and relative humidity or soon thereafter. Fed and unfed adult R. e. evertsi and R. (B.) decoloratus collected at the end of the experiment from the fungus-sprayed and from the control cattle and incubated in the laboratory exhibited a mortality of 93% in oil formulated conidia and 14% in oil control. The corresponding mortality in R. (B.) decoloratus was 100% in fungus and 11% in oil control. Ticks on the fungus-sprayed groups had significantly higher mortality (P & 0.05) than on the control groups. Furthermore, no significant difference (P & 0.05) was observed in fungus-induced mortality between the two tick species. Mortalities induced by Triton X-100 (0.05%), sunflower oil (20%) and water alone were low, suggesting that they were non-toxic to ticks at the concentrations used and no significant difference was observed among them. No physical or behavioral abnormalities were observed in the fungus-sprayed cattle at any time during the course of the experiment. All groups of cattle gained weights during the experimental period. © 2011 Springer Science+Business Media B.V.
Note:
Related Files :
Animals
cattle
Female
fungi
Male
pest control
ticks
עוד תגיות
תוכן קשור
More details
DOI :
10.1007/s10493-011-9471-3
Article number:
0
Affiliations:
Database:
סקופוס
Publication Type:
מאמר
;
.
Language:
אנגלית
Editors' remarks:

Itamar's own PDF.

ID:
24232
Last updated date:
02/03/2022 17:27
Creation date:
17/04/2018 00:06
You may also be interested in
Scientific Publication
Control of tick populations by spraying Metarhizium anisopliae conidia on cattle under field conditions -2011
55
Kaaya, G.P., Department of Animal Science, University of Namibia, Private Bag, 13301 Windhoek, Namibia
Samish, M., ARO, The Volcani Centre, P.O. Box 6, 50250 Bet Dagan, Israel
Hedimbi, M., Department of Biological Sciences, University of Namibia, Private Bag, 13301 Windhoek, Namibia
Gindin, G., ARO, The Volcani Centre, P.O. Box 6, 50250 Bet Dagan, Israel
Glazer, I., ARO, The Volcani Centre, P.O. Box 6, 50250 Bet Dagan, Israel
Control of tick populations by spraying Metarhizium anisopliae conidia on cattle under field conditions
Conidia of the entomopathogenic fungus, Metarhizium anisopliae, in oil/water formulation (1 × 10 8 conidia/ml) were sprayed at 3 weekly intervals on Rhipicephalus evertsi evertsi and Rhipicephalus (Boophilus) decoloratus ticks while feeding on Afrikana bulls grazing in paddocks for a period of 1 year. The fungus reduced the on-host tick populations by 83% 3 month after commencement of the experiment. The formulation by itself had only minimal effect on the tick population. Tick populations and fungal efficacy were highest at the peaks of rainfall and relative humidity or soon thereafter. Fed and unfed adult R. e. evertsi and R. (B.) decoloratus collected at the end of the experiment from the fungus-sprayed and from the control cattle and incubated in the laboratory exhibited a mortality of 93% in oil formulated conidia and 14% in oil control. The corresponding mortality in R. (B.) decoloratus was 100% in fungus and 11% in oil control. Ticks on the fungus-sprayed groups had significantly higher mortality (P & 0.05) than on the control groups. Furthermore, no significant difference (P & 0.05) was observed in fungus-induced mortality between the two tick species. Mortalities induced by Triton X-100 (0.05%), sunflower oil (20%) and water alone were low, suggesting that they were non-toxic to ticks at the concentrations used and no significant difference was observed among them. No physical or behavioral abnormalities were observed in the fungus-sprayed cattle at any time during the course of the experiment. All groups of cattle gained weights during the experimental period. © 2011 Springer Science+Business Media B.V.
Scientific Publication
You may also be interested in