scholarly journals Effect of Water Flooding on the Oviposition Capacity of Engorged Adult Females and Hatchability of Eggs of Dog Ticks:Rhipicephalus sanguineusandHaemaphysalis leachi leachi

2011 ◽  
Vol 2011 ◽  
pp. 1-5 ◽  
Author(s):  
Johnson O. Adejinmi
Keyword(s):  
Rhipicephalus Sanguineus ◽  
Water Flooding ◽  
Laboratory Conditions ◽  
Effect Of Water ◽  
Adult Females ◽  
Flooding Time ◽  
Oviposition Capacity ◽  
Haemaphysalis Leachi

Effects of water flooding on the oviposition capacity of engorged adult females and hatchability of eggs ofRhipicephalus sanguineusandHaemaphysalis leachi leachiunder laboratory conditions were investigated. The durations of time of water flooding were 1, 2, 4, 6, 12, 24, 48, 72, 96, and 120 hours. Engorged females ofR. sanguineusandH. leachi leachidid not oviposit after being flooded for more than 48 and 6 hours, respectively. The preoviposition periods of both species were longer than those of their controls. The number of eggs laid were significantly lower () and higher () than their controls, respectively, forR. sanguineusandH. leachi leachiflooded for 1–4 hours. The hatchability of eggs of both species decreased as flooding time increased. The percentage of hatchability was negatively correlated with flooding time and was highly significant (; ). It is concluded thatR. sanguineustolerated simulated water flooding more thanH. leachi leachi.

scholarly journals Ectoparasites of dogs belonging to people in resource-poor communities in North West Province, South Africa

2000 ◽  
Vol 71 (3) ◽  
Author(s):  
N.R. Bryson ◽  
I.G. Horak ◽  
E.W. Höhn ◽  
J.P. Louw
Keyword(s):  
South Africa ◽  
Rhipicephalus Sanguineus ◽  
Ixodid Ticks ◽  
North West ◽  
Canine Ehrlichiosis ◽  
High Prevalence ◽  
Resource Poor ◽  
North West Province ◽  
Haemaphysalis Leachi ◽  
Poor Communities

A total of 344 dogs belonging to people in resource-poor communities in North West Province, South Africa, was examined for ectoparasites, and all visible arthropods were collected from the left side of each dog. By doubling these numbers it was estimated that the dogs harboured 14 724 ixodid ticks, belonging to 6 species, 1028 fleas, belonging to 2 species, and 26 lice. Haemaphysalis leachi accounted for 420 and Rhipicephalus sanguineus for 14 226 of the ticks. Pure infestations of H. leachi were present on 14 dogs and of R. sanguineus on 172 dogs. Small numbers of Amblyomma hebraeum, R. appendiculatus, R. evertsi evertsi and R. simus were also collected. The predominance of R. sanguineus accounts for the high prevalence of canine ehrlichiosis (Ehrlichia canis) within the survey region, compared to canine babesiosis (Babesia canis), which is transmitted by H. leachi, and is a much rarer disease.

scholarly journals Ixodid ticks on dogs in southern Mozambique

2004 ◽  
Vol 71 (4) ◽  
Author(s):  
L. Neves ◽  
Sonia Afonso ◽  
I.G. Horak
Keyword(s):  
Tick Species ◽  
Rhipicephalus Sanguineus ◽  
Ixodid Tick ◽  
Ixodid Ticks ◽  
Domestic Dogs ◽  
Rural Settlements ◽  
Genus Level ◽  
Rural Environments ◽  
Haemaphysalis Leachi ◽  
The City

The objective of this study was to determine the species and distribution of ticks infesting domestic dogs in southern Mozambique. To this end 89 collections were taken from dogs and the geographic coordinates of the localities at which they were made noted. Fifty-eight of these collections were from animals in the city of Maputo and 16 from animals at rural settlements close to Maputo. A further 15 collections were made from dogs in rural environments north of Maputo. Ten ixodid tick species, of which one was only identified to genus level, were recovered. Rhipicephalus sanguineus was the most numerous of the ten species, and its prevalence and intensity of infestation were significantly higher on city dogs than on rural dogs (P< 0.01), whereas the converse was true for Haemaphysalis leachi (P< 0.01). Including the city of Maputo, the exact localities at which nine tick species were collected, were recorded.

DEVELOPMENTAL TIMES AND FECUNDITY OF IXODES COOKEI PACKARD (ACARI: IXODIDAE) UNDER LABORATORY CONDITIONS

1991 ◽  
Vol 123 (1) ◽  
pp. 1-12 ◽  
Author(s):  
Martha J. Farkas ◽  
Gordon A. Surgeoner
Keyword(s):  
Relative Humidity ◽  
Blood Meal ◽  
Egg Development ◽  
Thermal Threshold ◽  
Egg Hatch ◽  
Marmota Monax ◽  
Complete Development ◽  
Laboratory Conditions ◽  
Adult Females ◽  
Blood Meal Source

AbstractIxodes cookei Packard required ca. 14 weeks to complete development under laboratory conditions, using groundhogs [Marmota monax (L.)] as the blood meal source and off-host conditions of 25–29°C and 93–100% relative humidity. All three post-embryonic instars engorged in ca. 6–8 days. Larvae and nymphs maintained at 25°C moulted to the next instar ca. 18–20 days after detachment. Moult occurred under conditions of either a 0L:24D or a 16L:8D photoperiod. Adult females increased in weight ca. 49-fold from the unfed to the engorged state, attaining a weight of 194.1 ± 15.0 (mean ± SE) mg and producing 1281.5 ± 139.1 (mean ± SE) eggs at 29°C. The pre-ovipositional and ovipositional periods were 4.7 ± 0.3 and 20.2 ± 1.7(mean ± SE) days, respectively, at 29°C. Fifty percent of eggs were deposited within the 1st week of the ovipositional period at 29°C. First egg hatch at 29°C occurred ca. 31 days after oviposition was started. Eggs maintained at 10°C did not hatch, and the thermal threshold for egg development was calculated to be 11.2°C.

Chemical characterization and acaricide potential of essential oil from aerial parts of Tagetes patula L. (Asteraceae) against engorged adult females of Rhipicephalus sanguineus (Latreille, 1806)

2013 ◽  
Vol 112 (6) ◽  
pp. 2261-2268 ◽  
Author(s):  
Flávio Augusto Sanches Politi ◽  
Tatiana Maria de Souza-Moreira ◽  
Edvânio Ramos Rodrigues ◽  
Geisiany Maria de Queiroz ◽  
Glyn Mara Figueira ◽  
...  
Keyword(s):  
Essential Oil ◽  
Chemical Characterization ◽  
Rhipicephalus Sanguineus ◽  
Tagetes Patula ◽  
Aerial Parts ◽  
Adult Females

scholarly journals Diversity and Geographic Distribution of Dog Tick Species In Sri Lanka and The Life Cycle of Brown Dog Tick, Rhipicephalus Sanguineus Under Laboratory Conditions

2021 ◽  
Author(s):  
Rupika Subashini Rajakaruna
Keyword(s):  
Life Cycle ◽  
Species Diversity ◽  
Sri Lanka ◽  
Geographic Distribution ◽  
Tick Species ◽  
Dominant Species ◽  
Rhipicephalus Sanguineus ◽  
Laboratory Conditions ◽  
Brown Dog Tick ◽  
Dog Tick

Abstract Background Tick infestations and canine tick-borne diseases have become a major emerging health concern of dogs in Sri Lanka. Information about tick species infesting dogs and their geographic distribution in Sri Lanka is largely unknown. Methods An island-wide, cross-sectional survey of tick species infesting the domestic dog was carried out, and the life cycle of the major dog tick, Rhipicephalus sanguineus was studied under laboratory conditions. Results A total of 3,026 ticks were collected from 1,219 dogs of different breeds in all 25 districts in the three climatic zones: Wet, Dry, and Intermediate zones. Eight species in five genera were identified: R. sanguineus (63.4%), Rhipicephalus haemaphysaloides (22.0%), Haemaphysalis bispinosa (12.5%), Haemaphysalis intermedia (0.9%), Haemaphysalis turturis (0.6%), Amblyoma integrum (0.4%), Dermacentor auratus (0.2%) and Hyalomma sp (0.06%). The brown dog tick, R. sanguineus was the dominant species in the Dry and Wet zones, while R. haemaphysaloides was the dominant species in the Intermediate zone. Species diversity (presented as Shannon diversity index H) in the three was 1.135, 1.021and 0.849 in Intermediate, Dry and Wet zones, respectively. Adults formed 94.7% with a significantly higher number of females, and the rest were nymphs. Rhipicephalus sanguineus preferred the anterior side of the host body, specifically the inner and outer side of the ear. In contrast, R. haemaphysaloides preferred the posterior side, mainly the fore and hind limbs. The three-host life cycle of R. sanguineus was completed within 70–126 days, all three stages successfully fed on the New Zealand white rabbits under laboratory conditions. The mean REI and RFI were 50.8 ± 9.69 and 9.1 ± 5.01, respectively. Larger females had higher reproductive success. Conclusion The dominant dog tick species and the species diversity varied in different climatic regions of Sri Lanka. Information on diversity, distribution and life cycle parameters is fundamental for studies of canine tick-borne infections, zoonoses, and their epidemiology.

scholarly journals Comparative toxicity of certain pesticides to peach fruit fly, Bactrocera zonata Saunders (Diptera: Tephritidae) under laboratory conditions

2011 ◽  
Vol 47 (No. 3) ◽  
pp. 115-120 ◽  
Author(s):  
Y.Y. Mosleh ◽  
S.F.M. Moussa ◽  
L.H.Y. Mohamed
Keyword(s):  
Fruit Fly ◽  
Post Treatment ◽  
Adult Males ◽  
Peach Fruit ◽  
Laboratory Conditions ◽  
Adult Females ◽  
Comparative Toxicity ◽  
Bactrocera Zonata ◽  
Wide Range ◽  
Males And Females

Peach fruit fly, Bactrocera zonata (Saunders) (Diptera: Tephritidae), has been a serious pest in the last decade attacking a wide range of fruits in Egypt. The toxicity of Malathion, Diazinon, Methoxyfenozide, and Lufenuron to adult males and females of Bactrocera zonata was studied under laboratory conditions. Diazinon was the most toxic among the tested compounds followed by Malathion, Lufenuron and Methoxyfenozide to Bactrocera zonata at 24 h post treatment, the respective LC<sub>50</sub> values were 0.20 ppm, 0.48ppm, 8.97ppm, and 9.73ppm for males and 0.26 ppm, 0.91ppm, 11.26ppm, and 14.12ppm for females. At 48 h post treatment Diazinon was the most toxic followed by Malathion, Methoxyfenozide and Lufenuron to Bactrocera zonata, LC<sub>50</sub> values were 0.09ppm, 0.34ppm, 1.60ppm, and 1.88 ppm for males and 0.14 ppm, 0.44ppm, 1.68ppm and 2.17 ppm for females. At 72&nbsp;h post treatment Diazinon was the most toxic followed by Malathion, Lufenuron and Methoxyfenozide to Bactrocera zonata, LC<sub>50</sub> values were 0.02 ppm, 0.13ppm, 0.22ppm and 0.51ppm for males and 0.07 ppm, 0.16ppm, 0.55 ppm and 0.62 ppm for females. It is observed that LC<sub>50</sub> values for treated adult females increased more than in the treated adult males at 24 h, 48 h, and 72 h post treatment. It means that the adult males were more susceptible to the tested insecticides than the adult females.

Efficacy of the fipronil 10%+(S)-methoprene 9% combination against Rhipicephalus sanguineus in naturally infested dogs: Speed of kill, persistent efficacy on immature and adult stages and effect of water

2010 ◽  
Vol 170 (1-2) ◽  
pp. 96-103 ◽  
Author(s):  
Emanuele Brianti ◽  
Maria Grazia Pennisi ◽  
Giuseppina Brucato ◽  
Anna Lia Risitano ◽  
Gabriella Gaglio ◽  
...  
Keyword(s):  
Rhipicephalus Sanguineus ◽  
Speed Of Kill ◽  
Effect Of Water
Sign in / Sign up

Export Citation Format

Share Document