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Pesticidal activity of three Saudi plants [electronic resource].

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Al-Harbi, H.A

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Language: English Summary language: Arabic Description: p.7487-7492Other title:

النشاط الابادي لثلاثة نباتات سعودية [Added title page title]

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Mansoura University journal of agricultural sciences, 2008 v. 33 (10) [electronic resource].

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In: Mansoura Unviersity Journal of Agricultural Sciences 2008.v.33(10)Summary: The three plant species Calotropis procera (Ait) R Sr, Lavandula dentata L. and Juniperus procera grow wild in different locations in the Kingdom of Saudi Arabia, extracts from the three plants were tested for their molluscicidal. bactericidal, fungicidal and insecticidal activity. Although extracts from Cprocera were highly toxic to the land snail Theba pisana Muller with LD₅₀ of 8.11 mgl kg and to Culex pipiens larvae with LC₅₀ of 16.01 ppm, they did not show bactericidal or fungicidal activity. The crude oil of J procera and one of its fractions showed larvicidal activity with LC₅₀ values of 84.35 and 42.01 ppm, respectively. Volatile oil of Lavandula dentata was not active against test organisms at tested concentrations.

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The three plant species Calotropis procera (Ait) R Sr, Lavandula dentata L. and Juniperus procera grow wild in different locations in the Kingdom of Saudi Arabia, extracts from the three plants were tested for their molluscicidal. bactericidal, fungicidal and insecticidal activity. Although extracts from Cprocera were highly toxic to the land snail Theba pisana Muller with LD₅₀ of 8.11 mgl kg and to Culex pipiens larvae with LC₅₀ of 16.01 ppm, they did not show bactericidal or fungicidal activity. The crude oil of J procera and one of its fractions showed larvicidal activity with LC₅₀ values of 84.35 and 42.01 ppm, respectively. Volatile oil of Lavandula dentata was not active against test organisms at tested concentrations.

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