International Journal of Pest Management (1999) 45, 211-213

Hamdy I. Hussein, D. Al-Rajhy, Fikry I. El-Shahawi and S.M. Hashem (1999)
Molluscicidal activity of Pergularia tomentosa (L.), methomyl and methiocarb, against land snails
International Journal of Pest Management 45 (3), 211-213
Abstract: The molluscicidal activity of a cardenolide (cardiac glycoside) extract from Pergularia tomentosa (L.) (Asclepiadaceae), methomyl, and methiocarb was evaluated against the land snail Monacha obstructa (Ferussac) at 25 degress C. The LD50 value of the plant extract after 24 h of treatment was 60.9 mug/snail, whereas the LD50 values of the two tested carbamate pesticides after 72 h of treatment were 11.9 and 27.4 mug/snail, respectively. Only contact toxicity tests were used in this study because cardiac glycosides and plants containing them, including P. tomentosa , have a strong antifeedant effect against land snails. Further studies are needed to isolate and identify the molluscicidal compound(s). The possible uses of plants that contain cardenolides, as molluscicides, are discussed.
(The abstract is excluded from the Creative Commons licence and has been copied with permission by the publisher.)
Link to article at publishers website

Research topic(s) for pests/diseases/weeds:
control - general

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Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
	Monacha obstructa