EFFECT OF NEEM AZAL TIS ON THE TWO-SPOTTED SPIDER MITE Tetranychus urticae KOCH (ACARI: TETRANYCHIDAE )

The effects of Neem Azal- TIS, a commercial product, on various
developmental stages of the two-spotted spider mite, Tetranychus urticae Koch were
tested in the laboratory. Neem Azal TIS was tested for its effect as a deterrent,
toxicant, developmental retarding and antiovipositional of the pest T. urticae. The
product exhibited strong deterrent for T. urticae females, and the percentage of 001
was increased as the concentration increased to reach 94.17% at 0.4 % conc. The
developmental period of both treated larval and proto nymphal stages were
significantly prolonged. Female longevity resulted from treated larvae, protonymphs
and newly-emerged females was shortened and a remarkable depression in
fecundity was noted at all tested concentrations. A decrease in the percentage of egg
hatchbility was recorded at 0.4 and 0.2 % concs., while an increase in female mortality
was observed.
The effects of Neem Azal- TIS, a commercial product, on various
developmental stages of the two-spotted spider mite, Tetranychus urticae Koch were
tested in the laboratory. Neem Azal TIS was tested for its effect as a deterrent,
toxicant, developmental retarding and antiovipositional of the pest T. urticae. The
product exhibited strong deterrent for T. urticae females, and the percentage of 001
was increased as the concentration increased to reach 94.17% at 0.4 % conc. The
developmental period of both treated larval and proto nymphal stages were
significantly prolonged. Female longevity resulted from treated larvae, protonymphs
and newly-emerged females was shortened and a remarkable depression in
fecundity was noted at all tested concentrations. A decrease in the percentage of egg
hatchbility was recorded at 0.4 and 0.2 % concs., while an increase in female mortality
was observed.