Effect of Water Flooding on the Oviposition Capacity of Engorged Adult Females and Hatchability of Eggs of Dog Ticks:<i>Rhipicephalus sanguineus</i>and<i>Haemaphysalis leachi leachi</i>

Adejinmi, J.O.

doi:10.1155/2011/824162

Cited by 16 publications

(9 citation statements)

References 13 publications

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“…Therefore, one can speculate that the driving effect of rainfall on DIN is probably driven by the effect of rainfall on nymph abundance. This association may be related to the effect of rainfall on tick oviposition rates [ 65 ], number of eggs per clutch and/or hatching success rather than on questing activity [ 66 ], since heavy rain silts up egg masses [ 67 ]. Therefore, some climatic factors during peak months of egg deposition could be critical for subsequent distribution of ticks.…”

Section: Discussionmentioning

confidence: 99%

Effect of Climate and Land Use on the Spatio-Temporal Variability of Tick-Borne Bacteria in Europe

Rosà

Andreo

Tagliapietra

et al. 2018

IJERPH

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The incidence of tick-borne diseases caused by Borrelia burgdorferi sensu lato, Anaplasma phagocytophilum and Rickettsia spp. has been rising in Europe in recent decades. Early pre-assessment of acarological hazard still represents a complex challenge. The aim of this study was to model Ixodes ricinus questing nymph density and its infection rate with B. burgdorferi s.l., A. phagocytophilum and Rickettsia spp. in five European countries (Italy, Germany, Czech Republic, Slovakia, Hungary) in various land cover types differing in use and anthropisation (agricultural, urban and natural) with climatic and environmental factors (Normalized Difference Vegetation Index (NDVI), Normalized Difference Water Index (NDWI), Land Surface Temperature (LST) and precipitation). We show that the relative abundance of questing nymphs was significantly associated with climatic conditions, such as higher values of NDVI recorded in the sampling period, while no differences were observed among land use categories. However, the density of infected nymphs (DIN) also depended on the pathogen considered and land use. These results contribute to a better understanding of the variation in acarological hazard for Ixodes ricinus transmitted pathogens in Central Europe and provide the basis for more focused ecological studies aimed at assessing the effect of land use in different sites on tick–host pathogens interaction.

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Section: Discussionmentioning

confidence: 99%

Effect of Climate and Land Use on the Spatio-Temporal Variability of Tick-Borne Bacteria in Europe

Rosà

Andreo

Tagliapietra

et al. 2018

IJERPH

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“…The climatic factors during the month of egg deposition will probably be critical for the distribution of ticks, as there would not be sustainable tick population if the eggs do not survive and hatch. The effect of flooding upon the dog ticks ( Rhipicephalus sanguineus and Haemaphysalis leachi leachi ) shows that flooding affected oviposition, reduced the number of eggs laid and the percentage of hatchability [ 56 ]. It has been suggested that heavy rain silts up the egg masses [ 57 ].…”

Section: Discussionmentioning

confidence: 99%

Climate and environmental change drives Ixodes ricinus geographical expansion at the northern range margin

et al. 2014

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BackgroundGlobal environmental change is causing spatial and temporal shifts in the distribution of species and the associated diseases of humans, domesticated animals and wildlife. In the on-going debate on the influence of climate change on vectors and vector-borne diseases, there is a lack of a comprehensive interdisciplinary multi-factorial approach utilizing high quality spatial and temporal data.MethodsWe explored biotic and abiotic factors associated with the latitudinal and altitudinal shifts in the distribution of Ixodes ricinus observed during the last three decades in Norway using antibodies against Anaplasma phagocytophilum in sheep as indicators for tick presence. Samples obtained from 2963 sheep from 90 farms in 3 ecologically different districts during 1978 – 2008 were analysed. We modelled the presence of antibodies against A. phagocytophilum to climatic-, environmental and demographic variables, and abundance of wild cervids and domestic animals, using mixed effect logistic regressions.ResultsSignificant predictors were large diurnal fluctuations in ground surface temperature, spring precipitation, duration of snow cover, abundance of red deer and farm animals and bush encroachment/ecotones. The length of the growth season, mean temperature and the abundance of roe deer were not significant in the model.ConclusionsOur results highlight the need to consider climatic variables year-round to disentangle important seasonal variation, climatic threshold changes, climate variability and to consider the broader environmental change, including abiotic and biotic factors. The results offer novel insight in how tick and tick-borne disease distribution might be modified by future climate and environmental change.

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“…No significant change in laying pattern between Solution E and F treated ticks was observed and, in most cases,mortality was not seen until 11 th day post treatment. Start of mortalities 11 th day post treatment suggests a possibility that if the ticks are left in control solution more than two minutes used in AIT, death and better oviposition inhibition can be achieved [42].…”

Section: Egypt J Vet Sci Vol 51 No 2 (2020)mentioning

confidence: 99%

In vitro Analysis of the Efficacy of Selected Commercial Acaricides on The Cattle Tick Rhipicephalus (Boophilus) annulatus (Acari: Ixodidae)

Akande¹,

Adenubi

Garba³

2020

NIDOC-ASRT

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T ICKS are important to the Nigerian livestock industry because of their ability to cause huge economic loss directly or indirectly. Chemical acaricides have played important roles in control of tick infestation for many years but development of acaricide resistance as being reported worldwide is a huge problem facing the livestock industry and the veterinarians. Thus, this study evaluated the efficacy of available commercial acaricides on Rhipicephalus (Boophilus) annulatus. Using Adult Immersion Test (AIT): the LC 50 , inhibition of oviposition, control and resistance rates, gradation of tarsal reflexes were determined for ticks treated with different acaricides at five different concentrations the discriminating dose (DD) (the manufacturer's recommended dose) and four other different concentrations of two below and two above the DD with the aid of prohibit regression. The association between weight and number of eggs laid was analyzed by linear correlation. Macrocyclic lactone(66.7%), Phenylpyrazole (62.5%), Cypermethrin (62.5%), Formamidine(33.3%) and Phenylpyrazole(13% egg production), Macrocyclic lactone (18% egg production), Cypermethrin(20% egg production), Formamidine(49% egg production) have the highest to lowest percentage control and oviposition inhibition values respectively. The LC 50 of (Formamidine), (Phenylpyrazole), (Synthetic pyrethroids), (Macrocyclic lactone) against adult R. (B.) annulatus were 100, 8000, 2300 and 6000ppm respectively.The demonstration of acaricide resistancedevelopmentas demonstrated by the ticks in laying of eggs after dipping in acaricideis a call to the need for discovery and use of alternative tick control methods with good therapeutic dose and the need for continuous evaluation of available acaricide.

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

Cited by 16 publications

References 13 publications

Effect of Climate and Land Use on the Spatio-Temporal Variability of Tick-Borne Bacteria in Europe

Effect of Climate and Land Use on the Spatio-Temporal Variability of Tick-Borne Bacteria in Europe

Climate and environmental change drives Ixodes ricinus geographical expansion at the northern range margin

In vitro Analysis of the Efficacy of Selected Commercial Acaricides on The Cattle Tick Rhipicephalus (Boophilus) annulatus (Acari: Ixodidae)

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