TOXIC AND BIOLOGICAL EFFECTS OF SOME INSETICIDES ON THE LAND SNAIL Monacha cantiana (Montagu)

The toxic effects of some insecticides namely: Biosect, Biocanse, Biofly,
Biofar, Actara, Admiral, Admire, Marshal and Kuik under laboratory conditions were
studied against the land snail Monacha cantiana (Montagu), as well as the effect of
LCso's of Biofar, Admiral, Admire and Kuik on laid eggs and hatchability in snails
exposured to those compounds via pouring on the soil surface or feeding on treated
bran for one and seven days.
Toxicity results revealed that Biosect was the most effective one against the
land snail followed by Biocanse and Biofly, while Biofar was the least one
(Entomopathogenic fungi). Whereas, Actara was the most potent compound on the
land snail M. cantiana followed by Admiral, Admire and Marshal, while Kuik was the
lowest effective after one day from treatment.
In all insecticides treatments, the mean numbers of laid eggs per pair were
highly reduced as well as, laid eggs that failed to hatch.