Abstract
The systemic action of the specific acaricide C-8514 (Schering 36268) was investigated using a technique which excluded the strong vapor action of the material. Systemic action was demonstrated on the adult carmine spider mite, Tetranychus telarius. (L.), as well as on its eggs. Percentages kill could be correlated with concentrations of C-8514 in the nutrient solution in which the test plants (beans, Phaseolus vulgaris (L.)) were cultured. LC50S were calculated by probit analysis as being 8.4 ppm of C-8514 in the nutrient solution for adult females and 4.8 ppm for eggs. The bearing of these findings on control measures against spider mites is discussed.