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

Abstract

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),

Potential of Traditional Knowledge of Plants in the Management of Arthropods in Livestock Industry with Focus on (Acari) Ticks

“…Efforts to promote hands-on use of antitick plants at community level have clearly increased as signaled by a worldwide documentation of the plants (Tables 2 and 3) and many more studies being conducted on field surveys and trials [58, 109, 122, 129, 149] and laboratory tests [73, 96, 215–220]. The ongoing workshops, community-based training seminars, and novel projects on antitick plants at the Intermediate Technology Development Group-Eastern Africa (ITDG-EA), an international nongovernmental organization [129], are other promising proliferation signals in this area.…”

“…Some of these plants were among the 43 plant species evaluated in Jamaica, whose crude ethanol extracts of the leaves for pesticidal effects on the engorged cattle tick, Boophilus microplus , were determined [57, 58]. Their acaricidal indices (AI) for the crude plant extracts ranged from 50 to 100.…”

Ethnoknowledge of Bukusu community on livestock tick prevention and control in Bungoma district, western Kenya

“…Kumwarubaine ( (1988), Cabral et al (1996), Mansingh and Williams (1998), Borges et al (2003) P Stoll (1988, Neupane (1992), Berger (1994), Kroschel (1996), Batcher (2000) Af Chen et al (1996), Nardo et al (1997, Vellaikumar (1997) B Andrei et al (1990, Zakir et al (1991), Villamil et al (1995), HerbWeb (2000) I Al-Sharook et al (1991), Arias et al (1992), Isman et al (1996), Cabral et al (1996), Nardo et al (1997, Valladares et al (1997), Adoyo et al (1997), Schmidt et al (1998) Grieve (1931), Watt and Breyer-Brandwijk (1962), Duke and Wain (1981), Morton (1981), Perry (1980), Duke (1983c) B, F Killip and Smith (1935), Fanshawe (1948Fanshawe ( , 1953, Watt and Breyer-Brandwijk (1962), Abourashad et al (1999), van Andel (2000), Onge Cremlyn (1978), Stoll (1988), Matzigkeit (1990), Juliette de Ba Levy (1991), …”

“…I ITDG and IIRR (1996), ICIPE Annual Report (1998/99), Mansingh and Williams (1998), Mulla and Su (1999), Ndumu et al (1999) Williams (1993), ITDG and IIRR (1996), ICIPE Annual Report (1998/99), Ndumu et al (1999), Wilson and Mansingh (2002), Blair and Mansingh (2002), Abdel-Shafy and Zayed (2002), Mansingh and Williams (2002) …”

On - Farm Evaluation of Natural Toxicants from Tephrosia Vogelii and Petiveria Alliacea on Megalurothrips Sjostedti and Apion Varium of Cowpea (Vigna Unguiculata (L) Walp)

“…Matsmura (1985) reported that among six roteniods which occur naturally from T. vogelii, rotenone was found to be the most insecticidal which can act as either a contact or stomach poison, while Dibenzyltrisulfide, an insecticidal compound isolated from P. alliacea, acts as repellant (Mansingh and Williams 1998). This was probably why pods and grains from the unsprayed plants were severely damaged compared to the plant extracts treated plants.…”