Comparative Efficacies of Curcuma longa Citrullus colocynthis and Peganum harmala against Rhipicephalus microplus through Modified Larval Immersion Test.
The present experiment was conducted to evaluate the acaricidal activities of the aqueous methanolic extracts of rhizome of Curcuma longa fruit of Citrullus colocynthis and seed of Peganum harmala. Modified Larval Immersion test (syringe method) was used to evaluate the acaricidal activity of plant extracts in lab against Rhipicephalus microplus. Acaricidal activity of each plant was evaluated at two different exposure times (time-mortality experiment) i.e. 24 h post exposure and 6 day post exposure. The highest activity was recorded at 6th day after application of combined three plants at the dose rate of 50 mg/mL; whereas lowest acaricidal efficacy was observed at 24 h with the dose rate of 3.125 mg/mL in case of individual effect of P. harmala. The herbal formulation is suitable for the poor farmers as a broad spectrum antiparasitic. The contents of the formulation are cheap and commonly available.
The combination of plants may be recommended for use at farm level based on empirical evidence of its anti-parasitic activity.
Keywords: Acaricidal activity; Curcuma longa; Citrullus colocynthis; Peganum harmala; Crude aqueous-methanol extracts
Ecto-parasite like ticks mites and lice cause high economic losses due to effect on the skin and causes anemia by ingesting the blood of host (Jonsson 2006; Abbas et al. 2014a). They also cause allergy irritation and toxicosis (Niyonzema and Kiltz 1986). Among ectoparasites ticks play an important role in impairment of production lowered weight gain (Pegram and Oosterwijk 1990) and mortality (Niyonzema and Kiltz 1986). These ecto-parasites also serve as vector for transmission of different diseases like anaplasmosis babesiosis and theileriosis (Norval et al. 1984). Ticks also act as carrier of certain pathogenic agents e.g. Salmonella typhimurium Pasturella multocida and Brucella abortus that cause zoonosis (Jongejan and Uilenberg 2004).
The prevalence of ticks in cattle ranges from 36 to 66.7% in Pakistan (Atif et al. 2012). Control of parasitism largely depends upon the use of synthetic drugs. However there is development of resistance in parasites against drugs (Rodriguez-Vivas et al. 2006; Jabbar et al. 2007; Miller et al. 2007; Saeed et al. 2007) and problem of potential residues of drugs in milk meat and other animal products (Tarbin et al. 2006). Thus there is an urgent need for alternate parasitic control strategies to overcome the drawback associated with the use of synthetic drugs (Masood et al. 2013; Abbas et al. 2014b; Hamad et al. 2014). This may include phytotherapy (e.g. for ticks by Sindhu et al. 2010) an important component of ethno- veterinary medicine. This paper describes anti-tick activity of some plants indigenous to the study area in Pakistan.
Materials and Methods
Selection of Plants
During survey three of the screened plants were selected for acaricidal activity which includes were Curcuma (C) longa (rhizome) Citrullus (Ct) colocynthis (fruit) and Peganum (P) harmala (seed). Plants were selected from District Jhang of Pakistan and got authenticated from an expert in the Department of Botany University of Agriculture and Faisalabad Pakistan.
Extraction of Plant Materials
Plants were dried in dry and cold place to prepare methanolic aqueous extracts by following Tabassum et al. (2008). Briefly dried powdered plant material was extracted with methanol-aqueous (70:30) solvent for about 72 h. After filtration new solvents were added and the above said procedure was repeated for three times. Crude extract was obtained after the evaporation of solvent in rotary evaporator.
Modified Larval Immersion Test
Rhipicephalis (R) microplus engorged female ticks were collected from infested cattle. Ticks were washed and then incubated for egg laying at 90% relative humidity (RH) and 27C in incubator (Sindhu et al. 2010).
Modified Larval Immersion test (syringe method) was used to investigate acaricidal effect of plant extracts against R. microplus under laboratory conditions. Approximately 200 eggs were placed in syringe and open end was closed with nylon gauze having double layer. For egg hatching syringes were incubated at 90% RH and 27oC. After 14 days of egg hatching larvae were used for bioassay.
Stock solution of desired concentration (w/v) from each extract (Plant (P) 1 P2 P3 P1A-2 P1A-3 P2A-3 and P1A-2A-3) was prepared in 0.2% solution of TritonX-100 and subsequently five dilutions of stock solution were prepared. Two ml of test solution was sucked inside the syringe (containing 12-14 day old larvae) and syringe was shaken for 30 sec to treat the larvae. After 30 sec test solution was discarded and syringes were placed in fume hood for one hour for drying. After one hour all the treated syringes were incubated at 27oC and 90% RH. Two sets of treatments were run in triplicate. One set was used to check mortality after 24 h of incubation and 2nd was used to check the mortality after 6 days of incubation.
Data of syringe test were analyzed by probit analysis using Polo Plus (LeOra software 2002) computer program.
Anti-tick effect was observed in all the tests carried out in this study in dose dependent manner. Increasing concentrations of herbal extracts caused higher mortality of tick larvae as opposed to no or very less mortality in the control group. There was a significant reduction (pless than 0.05) in the number of ticks exposed to 50 mg/mL herbal extract compared with control. The combination of three selected plants (C. longa C. colocynthis and P. harmala) at dose rate of 50 mg/mL showed the highest (100%) mortality; whereas individual application of P. harmala @ 3.125 mg/mL showed the minimum mortality percentage.
The detailed result of various dose concentrations of different plants individually as well as in combination has been depicted in Fig. 1. Acaricidal efficacy of various concentrations of C.longa C.colocynthis P.harmala and their combinations were depicted in Fig. 2-6. After standardization of syringe test preliminary screening of plant CEs was done against R. microplus by using at least five different concentrations of each CE. Initial screening of CE gives an idea about range of activity of CE against R. microplus. Plant extracts which showed promising acaricidal effect against R. microplus were selected for evaluation of acaricidal activity following standard procedures i.e. bioassay for each plant was repeated at least for three times.
Acaricidal activity of each plant was evaluated at two different exposure times (time-mortality experiment) i.e. 24 h post exposure and 6 day post exposure. The highest activity was recorded at 6th day after application in case of three plants combination at the dose rate of 50 mg/mL whereas lowest acaricidal efficacy was observed at 24 h with the dose rate of 3.125 mg/mL in case of individual effect of P. harmala.
The in vitro bioassays used in this study for evaluation of acaricidal efficacy of herbal extract have been successfully carried out for initial screening of plants and their combinations. Modified larval immersion test/syringe test (Al-Rajhy et al. 2003; FAO 2004; Miller et al. 2007) by topical application were used for acaricidal efficacy.
Test used for investigation indicated anti-tick activity of the herbal extract (HE) alone and in combination. Mortality of tick larvae was higher (pless than 0.05) in combined herbal extract treated groups in comparisons with the individuals as well as control groups. Efficacy of extracts of plants on larvae has been investigated by other workers (Zaman et al. 2012) using various plants. However variation has been recorded in the different concentrations of herbal extracts and time taken for exerting toxic effects on larvae in various studies. Dipeolu and Ndungu (1991) have reported anti-tick activity of Nicotiana tabacum leaves in Kenya. Larvae of R. appendiculatus were killed on the ears of calves within 24 h.
Exposure of R. microplus larvae to oleoresinous extract (oleoresin) from the copaiba tree i.e. Copaifera reticulata resulted in larval mortality 24 h after treatment (Fernandes and Freitas 2007; Ribeiro et al. 2007) have demonstrated 11.7 to 14.7% with the hexane extract of Calea serrata (Ribeiro et al. 2007; Ferrarini et al. 2008) have demonstrated lethal effects of Limonene limonene oxide and eight b-amino alcohol derivatives @ 10 and 2.5 mg/mL on larvae of R. microplus respectively.
This can only be speculated that how herbal extract does gets in to the body of tick unless proved through experiments. However the logical assumption would be that the phytochemicals of herbal extract get absorbed in the skin surrounding the site of tick attachment. The phytochemicals may thus interfere with the feeding of tick and/or cause their paralysis. Herbal extract was rubbed twice a day for six days on and around the sites of tick attachments; therefore it should be sufficient time for absorption of phytochemicals in the skin in the concentrations to interfere with tick feeding and/or cause their paralysis.
Crude aqueous- methanol extracts (CAME) of the three plants and their combination (C. longa Ct. colocynthis and P. harmala) were found effective against (R. microplus) larvae of ticks. Optimum geo climate which favors the growth of plants in Pakistan. Therefore there is lot of opportunity in testing plants for its acaricidal effects.
Abbas R.Z. D.D. Colwell Z. Iqbal and A. Khan 2014a. Acaricidal drug resistance in poultry red mite (Dermanyssus gallinae) and approaches to its management. World Poult. Sci. J. 70: 113124 Abbas A R.Z. Abbas J.A. Khan Z. Iqbal M.M.H. Bhatti Z.U.D. Sindhu and M.A. Zia 2014b. Integrated strategies for the control and prevention of dengue vectors with particular reference to Aedes aegypti. Pak. Vet. J. 34: 110
Al-Rajhy D.H. A.M. Alahmed H.I. Hussein and S.M. Kheir 2003. Acaricidal effects of cardiac glycosides azadirachtin and neem oil against the camel tick Hyalomma dromedarii (Acari: Ixodidae). Pest. Manage. Sci. 59: 12501254 Atif F.A. M.S. Khan H.J. Iqbal Z. Ali and S. Ullah 2012. Prevalance of cattle tick infestation in three districts of Punjab Pakistan. Pak. J. Sci. 64: 1418
Dipeolu O.O. and J.N. Ndungu 1991. Acaricidal activity of kupetaba a ground mixture of natural products against Rhipicephalus appendiculatus. Vet. Parasitol. 38: 327338 FAO 2004. Pakistan Livestock Sector Survey Report No. 32/74/Pak/7 pp: 1114. FAO/World Bank Cooperative Programme Italy
Fernandes F.D.F. and E.D.P.S. Freitas 2007. Acaricidal activity of an oleoresinous extract from Copaifera reticulata (Leguminosae: Caesalpinioideae) against larvae of the southern cattle tick Rhipicephalus (Boophilus) microplus (Acari: Ixodidae). Vet. Parasitol. 147: 150154
Ferrarini S.R. M.O. Duarte R.G. da Rosa V. Rolim V.L. Eifler-Lima G.V. Poser and V.L.S. Ribeiro 2008. Acaricidal activity of limonene limonene oxide and b-amino alcohol derivatives on Rhipicephalus (Boophilus) microplus. Vet. Parasitol. 157: 149153 Hamad K.K. Z. Iqbal Z.U.D. Sindhu R.Z. Abbas A. Khan G.
Muhammad and B. Epperson 2014. Combination of Nicotiana tabacum and Azadirachta indica: A novel substitute to control levamisole and ivermectinresistant Haemonchus contortus in ovine. Pak. Vet. J. 34: 2429 Jabbar A. M.A. Zaman Z. Iqbal M. Yaseen and A. Shamim 2007. Anthelmintic activity of Chenopodiumalbum and Caesalpinia crista against trichostrongylid nematodes of sheep. J. Ethnopharmacol. 114: 8691
Jongejan F. and G. Uilenberg 2004. The global importance of ticks. Parasitology 129: 314 Jonsson N.N. 2006. The productivity effects of cattle tick (Boophilus microplus) infestation on cattle with particular reference to Bos indicus cattle and their crosses. Vet. Parasitol. 137: 110 LeOra Software 2002. PoloPlus. LeOra Software 1007 B St. Petaluma. USA Masood S. R.Z. Abbas Z. Iqbal M.K. Mansoor Z.U.D. Sindhu M.A. Zia and J.A. Khan 2013. Role of natural antioxidants for the control of coccidiosis in poultry. Pak. Vet. J. 33: 401407
Miller R.J. R.B. Davey and J.E. George 2007. First report of permethrin- resistant Boophilus microplus (Acari: Ixodidae) collected within the United States. J. Med. Entomol. 44: 308315 Niyonzema A. and H.H. Kiltz 1986. Control of ticks and tick-borne diseases in Burundi. ACIAR. Proc. No. 17: 1617 Norval R.A.I. B.H. Fivaz J.A. Lawrence and A.F. Brown 1984.
Epidemiology of tick-borne diseases of cattle in Zimbabwe. Trop. Anim. Health Prod. 16: 6370 Pegram R.G. and G.P.M. Oosterwijk 1990. The effect of Amblyomma variegatum on livestock gain of cattle in Zambia. Med. Vet. Entomol. 4: 327330 Ribeiro V.L.S. E. Toigo S.A.L. Bordignon K. Goncalves and G.V. Poser 2007. Properties of extracts from the aerial parts of Hypericum polyanthemum on the cattle tick Boophilus microplus. Vet. Parasitol. 147: 199203
Rodriguez-Vivas R.I. F. Rodriguez-Arevalo M.A. Alonso-Diaz H. Fragoso-Sanchez V.M. Santamaria and R. Rosario-Cruz 2006. Prevalence and potential risk factors for amitraz resistance in Boophilus microplus ticks in cattle farms in the State of Yucatan Mexico. Prev. Vet. Med. 75: 280286 Saeed M. Z. Iqbal and A. Jabbar 2007. Oxfendazole resistance in gastrointestinal nematodes of Beetal goats at livestock farms of Punjab (Pakistan). Acta. Vet. Brno. 76: 7985 Sindhu Z.D. Z. Iqbal M.N. Khan N.N. Jonsson and M. Siddique 2010.
Documentation of ethno-veterinary practices used for treatment of different ailments in a selected hilly area of Pakistan. Int. J. Agric. Biol. 12: 353358 Tabassum S.M. Z. Iqbal A. Jabbar Z.D. Sindhu and A.I. Chattha 2008. Efficacy of crude neem seed kernel extracts against natural infestation of Sarcoptes scabiei var. ovis. J. Ethnopharmacol. 115: 284287 Tarbin J.A. J. Bygrave T. Bigwood D. Harday M. Rose and Sharman
2006. The effect of cooking on veterinary drug residues in food: Nicarbazin (Dinitrocarbanilide component). Food. Add. Contamin. 22: 11261131 Zaman M.A. Z. Iqbal R.Z. Abbas and M.N. Khan 2012. Anticoccidial activity of herbal complex in broiler chickens challenged with Eimeria tenella. Parasitology 139: 237243
|Printer friendly Cite/link Email Feedback|
|Publication:||International Journal of Agriculture and Biology|
|Date:||Feb 28, 2015|
|Previous Article:||Alleviation of Phyto-toxic Effects of Chromium by Inoculation of Chromium (VI) Reducing Pseudomonas aeruginosa Rb-1 and Ochrobactrum intermedium Rb-2.|
|Next Article:||Toxicity to Hematology and Morphology of Liver Brain and Gills during Acute Exposure of Mahseer (Tor putitora) to Cypermethrin.|