... Biology and Mode of Action Whiteflies (eg Bemisia tabaci) and spider mites (eg Tetranychus urticae) be- long to the most serious sucking pests in CROP PROTECTION RESEARCH 699 CHIMIA 2003, 57, No.11 O O O Cl Cl O O ... 1) NaCN + KOtBu 7 9 10 11 6 3) EtOH, p-TsOH ...