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Results for “Molluscacides”

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At least 19 recordsLinked to original sources
PubMed2000

New 1,3-benzoxazin-2-ones or thiones of molluscacidal activity.

A facile synthetic approach towards 3-aryl, alkyl or beta-glucopyranosyl-1,3-benzoxazin-2-ones and their thio-analogues 3 was adopted via the reaction of the easily available 3-(2-hydroxyaryl)-2-propen-1-ones 1 with a variety of isocyanates or isothiocyanates. The isolation of the open-chain carbamates 2 and then independent cyclization to the corresponding 1,3-benzoxazines 3 confirms the reaction sequence. Molluscacidal activity of the products was screened.

Animals↗
PubMed2000

[Studies on the effect-increasing components for molluscacides in nut of Areca catech L].

OBJECTIVE: To investigate the effect-increasing action of Areca catech for molluscacide. METHOD: Experiments were conducted on the effect-increasing components isolated from the dry nut of A. catech. RESULT: Arecoline has been proved the most effect-increasing component. CONCLUSION: When used with SPA arecoline could reduce markedly the doses of the two agents.

Animals↗
PubMed1993

[Laboratory studies of the molluscacidal action of the maguey (Agave legrelliana) on Biomphalaria havanensis].

A study was carried out on the molluscacidal action of agave (Agave legrelliana) on the mollusk Biomphalaria havanensis, host of Schistosoma. Different concentrations of the plant's juice extract were tested to determine lethal doses. 3 experimental series were carried out using 144 mollusks in each. LD50 = 0.14 mL/L and LD90 = 0.47 mL/L were determined using the "probilog" computerized program. The regression equation was Y = 5.29 + 2.53 in X. Density, pH, liquid content and absorbance of the juice were determined. The stability of the A. legrelliana juice extract was compared using LD90 and it was observed that its effectiveness was reduced after long storage periods. The results attained were very encouraging since large volumes of water abounding in intermediate host mollusks can be treated with small quantities of juice at the same time that the toxicity which might be introduced by products of chemical origin is reduced.

Animals↗