Evaluation Of Tested Ipm Elements Of Some Land Snails ýIn Egyptýýý

S.M. Abd–El-All ⁽¹⁾and H. I. El-Deeb⁽²⁾ ýý
⁽¹⁾Faculty of Agriculture, Al-Azhar University, Assiut, Egyptýý
⁽²⁾ Plant protection Research Institute, Agriculture Research Center, Dokki, Giza, ýEgyptýýý

Abstract

Several laboratory and field experiments were conducted to study the role of ýcertain mechanical, cultural, biological and chemical control components in ýintegrated pest management. Data revealed that lettuce plants were more attractive ýto snails compared to the other plant traps (i.e. cabbage, broad bean and sweet ýpotato ). All plants tested abated the snail population of both species to half. On the ýother hand, tillage and hand collection as cultural control methods of snails were ýfound useful to control land snails. These approaches were found more effective in ýreducing M. obstructa than E. vermiculata population. The use of some ýmicrobial pesticides and plant extracts, i.e. Bacillus thuringiensis var. ýýkurstaki, Bacillus thuringiensis var. isroelensis & vertimec 1.8% ýý(Streptomyces thuringernsis) and Neem, spotted-gum and Oshar ethanolic ýextract, in laboratory tests for biological control of three-land snails E. ývermiculata, M. obstructa and T. pisana revealed that the residue film ýtechnique was more effective than leaf-dipping, with B.t.k. giving the highest ýefficacy. On the other hand, M. obstructa snail was the most susceptible, ýwhereas E. vermiculata snail was the least susceptible. M. ýobstructa was the most sensitive for vertimec, applied either as residue film or ýas leaf dip. Laboratory tests for the molluscicidal effect of some plant extracts ýagainst E. vermiculata, M. obstructa and T. pisana in laboratory, ýshowed that neem and spotted-gum ethanol produced the best bioactivity, followed ýby Oshar. In addition, the residue film technique showed more toxicity than leaf ýdipping. The effect of some pesticides for chemical control of the adult stage of ýthree land snail species; E. vermiculata, M. obstructa and T. ýpisana using residue film and leaf dipping techniques, were evaluated in the ýlaboratory. Copper sulfate proved to be the most effective, while fenitrothion, ýsethoydim and thiophanate-methy1 were the least effective as residue film or leaf ýdip. M. obstructa snail was relatively more sensitive for metaldehyde and ýthiodicarb compounds than T. pisana and E. vermiculata snails. ý