Acaricidal activity ofMargaritaria discoidea(Euphorbiaceae) plant extracts against the ticksRhipicephalus appendiculatusandAmblyomma variegatum(Ixodidae)

Kaaya, Godwin P.; Mwangi, Esther N.; Malonza, M. M.

doi:10.1080/01647959508684052

Cited by 28 publications

(15 citation statements)

References 8 publications

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“…(Thompson et al, 1978), Gyandropsis gynandra (Malonza et al, 1992), Ocimum suave , Margaritaria discoidea (Kaaya et al, 1995) and various species of Stylosanthes (Sutherst et al, 1988); and a ground mixture of natural products Dipeolu and Ndungu (1991). Commiphora erythraea (Carol et al, 1989), G. gynandra (Malonza et al, 1992) and O. suave extracts have been found to repel ticks, while Acalypha fniticosa contains compounds which attract them (Hassan et al, 1994).…”

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confidence: 98%

Pesticidal potential of tropical plants—II. Acaricidal activity of crude extracts of several Jamaican plants

Mansingh

Williams

1998

Int. J. Trop. Insect Sci.

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Topical application of crude ethanol extracts (CEs) of the leaves of 43 of 51 Jamaican plants produced varying degrees of multiple acaricidal effects on engorged Boophilus microplus Canst., including mortality (M), inhibition of oviposition (IO) and inhibition of embryogenesis (IE). Acaricidal indices (AI) ranged from 50 to 100 for the CEs of 29 plants, 38 to 47 for 9 plants and from 0 to < 25 for 13 plants. The most active CEs, in decreasing order of activity (AI values in parentheses) were those of: Simarouba glauca (100), Symphytum officinale (99), Nicotiana tabacum (95), Hibiscus rosa-sinensis (93),Resume-L'application par voie de contact des extraits bruts a l'ethanol obtenus des feuilles de 43 des 51 plantes Jamai'caines, sur la tique gorgee, Boophilus microplus Canst., produisait des effets acaricides a des degres varies dont: la mortalite, l'inhibition de ponte et d'embryogenese. Les indices acaricides se rangeaient de 50 a 100 pour les extraits obtenus de 29 plantes, de 38 a 47 pour 9 plantes, et de 0 a 25 pour 13 plantes. Dans un ordre decroissant, les extraits les plus actifs (indice acaricide entre parentheses) ont ete obtenus chez les especes suivantes: Simarouba glauca (100), Symphytum officinale (99), Nicotiana tabacum (95), Hibiscus rosa-sinensis (93), Ervalamia divaricata = Ricinus communis (82),

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confidence: 98%

Pesticidal potential of tropical plants—II. Acaricidal activity of crude extracts of several Jamaican plants

Mansingh

Williams

1998

Int. J. Trop. Insect Sci.

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“…For the control group, the egg hatching rate was approximately 90%. Kaaya et al (1995) using a different methodology, showed the efficiency of water-soluble extracts of Margaritaria discoidea an Euphorbiacea. The extracts of this plant induced a high mortality in nymphs and adults of R. appendiculatus and A. variegatum but the same was not observed for adults of A. variegatum.…”

Section: Resultsmentioning

confidence: 99%

“…Kaaya et al (1995) and Abdel-Shafy & Zayed (2002) demonstrated that extracts of several plants had a strong acaricide effect, being able to reduce food ingestion and alter the fertility and viability of eggs of Hyalomma anatolicum excavatum, Amblyomma variegatum, Rhipicephalus appendiculatus.…”

Section: Introductionmentioning

confidence: 99%

Efficiency of the latex from Euphorbia splendens var. hislopii (N.E. Br.) Ursch & Leandri, Euphorbiaceae, in the control of Rhipicephalus (Boophilus) sanguineus (Latreille, 1806) (Acari: Ixodidae)

Pinto¹,

Queiroz²,

Barbosa³

2011

Rev. bras. farmacogn.

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Abstract:The aim of this study was to evaluate the effect of the latex from Euphorbia splendens var. hislopii (N.E. Br.) Ursch & Leandri, Euphorbiaceae, on the eggs and engorged larvae of Rhipicephalus (B.) sanguineus (Latreille, 1806) (Acari: Ixodidae). Six aqueous concentrations: 25, 50, 100, 125, 250 and 500 µL/L of the latex of this plant were tested. The control group was tested only with distilled water. The latex of E. splendens var. hislopii presented an LD50 of 18.031 µL/L and LD90 of 84.610 µL/L against the eggs of R. (B.) sanguineus. The larvae of all the groups treated with the latex presented a low survival rate of 0% at 25 μL/L, 1% at 50 µL/L, 2% at 100 µL/L, 3% at 125 µL/L, 9% at 250 µL/L, 5% at 500 μL/L when compared with the control group (91%). On day 7 and 14 after the application the latex killed more efficiently the treated groups (25, 50, 100, 125, 250 and 500 µL/L). As from day 21 the latex became less effective for all treatments. Our results clearly show that the aqueous concentration of the latex have a strong effect on tick eggs and larvae suggesting that it could become an important acaricide.

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“…Three furanosesquiterpenoids isolated from a related African plant, Commiphora erythraea were also found to be toxic to larvae of R. appendiculatus (Maradufu, 1982). Furthermore, a water-soluble extract of a tropical shrub, Margaritaria discoidea was observed to induce high mortalities in nymphs and adults of R. appendiculatus (Kaaya et al, 1995).…”

Section: Introductionmentioning

confidence: 95%

Pathophysiological effects of Neem (Azadirachta indica) derivatives to Rhipicephalus appendiculatus, the tick vector for Theileriosis (East Coast Fever)

Kaaya¹,

Hedimbi²

2017

J. Entomol. Nematol.

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brown ear tick, Rhipicephalus appendiculatus, the vector for Theileria parva. Neem oil was applied on rabbit ears using a fine brush, whereas NSP was mixed with rabbit pellets at various concentrations and fed on goats on which various instars of the tick were allowed to feed. Tick larvae smeared with Neem oil (NO) while attached to rabbit ears exhibited significant mortalities. The 10% NO induced a mortality of 40% compared to less than 1% observed in Peanut oil (PO) control. Furthermore, engorgement weights were significantly reduced (0.1 mg NO vs 4 mg PO). Their corresponding moulting percentages were 1 and 71% in NO and PO, respectively. Adult female ticks exhibited reduced engorgement weights and egg mass. Larvae able to attach on goats maintained on 100% NSP were only 11% compared to 66% for control goats fed on rabbit pellets (RP). The corresponding nymphal attachments were 24% NSP and 79% RP. The number and weights of eggs produced by adult ticks fed on goats maintained on NSP also dropped significantly. The hatchability of eggs produced by these ticks was also significantly reduced.

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Acaricidal activity ofMargaritaria discoidea(Euphorbiaceae) plant extracts against the ticksRhipicephalus appendiculatusandAmblyomma variegatum(Ixodidae)

Cited by 28 publications

References 8 publications

Pesticidal potential of tropical plants—II. Acaricidal activity of crude extracts of several Jamaican plants

Pesticidal potential of tropical plants—II. Acaricidal activity of crude extracts of several Jamaican plants

Efficiency of the latex from Euphorbia splendens var. hislopii (N.E. Br.) Ursch & Leandri, Euphorbiaceae, in the control of Rhipicephalus (Boophilus) sanguineus (Latreille, 1806) (Acari: Ixodidae)

Pathophysiological effects of Neem (Azadirachta indica) derivatives to Rhipicephalus appendiculatus, the tick vector for Theileriosis (East Coast Fever)

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