A comparative study on cypermethrin resistance in Rhipicephalus (Boophilus) microplus and Hyalomma anatolicum from Punjab (India)

Transstadial transmission of Theileria annulata with Hyalomma anatolicum anatolicum, H. dromedarii and H. marginatum isaaci, and Haemaphysalis bispinosa, Rhipicephalus haemaphysaloides haema-physaloides and Boophilus microplus was determined.It was found that the infection was successfully transmitted by H. a. anatolicum from larva to nymph and nymph to adult in all attempts. When larvae were fed on an infected calf the succeeding adults transmitted the infection when the intervening nymphs fed on a rabbit (nonsusceptible host) but not when fed on a calf (susceptible host). Infective adult ticks transmitted the parasite during the first 24 h of feeding on a calf. When the feeding was interrupted after 24 h, and the tick transferred to another calf, the infection was transmitted to the latter as well.H. dromedarii successfully transmitted the infection from larva to nymph and from nymph to adult.Larvae of H. marginatum isaaci did not feed on calves but the infection was successfully transmitted from nymph to adult.Haemaphysalis bispinosa, Rhipicephalus h. haemaphysaloides and Boophilus microplus did not transmit Th. annulata from larva to nymph to adult.

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Comparative study of hatching estimation methods of Rhipicephalus (Boophilus) microplus eggs

Veterinary Parasitology ◽

10.1016/j.vetpar.2018.10.015 ◽

2018 ◽

Vol 264 ◽

pp. 35-38 ◽

Cited By ~ 2

Author(s):

Amanda Figueiredo ◽

Isabela Cabeça Agnolon ◽

Louyse Gabrielli Lopes ◽

Rodrigo Giglioti ◽

Ana Carolina de Souza Chagas

Keyword(s):

Comparative Study ◽

Boophilus Microplus ◽

Estimation Methods

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Entomological Survey for CCHF Vectors in Palghar District of Maharashtra

JOURNAL OF COMMUNICABLE DISEASES ◽

10.24321/0019.5138.202103 ◽

2021 ◽

Vol 53 (1) ◽

pp. 10-14

Author(s):

SN Sharma ◽

Keyword(s):

Past History ◽

Dairy Farm ◽

Animal Husbandry ◽

Rhipicephalus Sanguineus ◽

Chemical Compounds ◽

Hemorrhagic Fever ◽

Boophilus Microplus ◽

Hyalomma Anatolicum ◽

Vector Surveillance ◽

Heavy Infestation

In view of reports of alert issued by Department of Animal Husbandry, Government of Maharashtra for Crimean Congo Hemorrhagic Fever (CCHF) in Palghar district, a visit was planned from 2-5 October 2020 to assess the situation and vector surveillance of ticks was carried out in the district. There is no past history with any report of CCHF cases in the district. However, there have been reported outbreaks of dengue and malaria during 2018 & 2019 as per IDSP data. The department of Animal Husbandry had initiated tick reduction activities in the bordering 19 villages with Gujarat using the chemical compounds (Deltamethrin, Cypermethrin). No confirmed cases of CCHF have been reported in District Palghar so far. During tick surveys in 4 villages and a dairy farm, heavy infestation of Boophilus Sp. (60-70%) mainly on cows and buffaloes.Hyalomma Sp. (30-40%) was observed mainly on goats which is the main vector responsible for CCHF. The infected ticks were found to be Boophilus microplus, Hyalomma anatolicum, Hy. marginatumand Rhipicephalus sanguineus species.Guidelines on proper dosage for the formulations of insecticide being used and spray techniques need to be followed up on the animals by the field staff and officials of Animal Husbandry department.

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