Chi, D.F, Miao, J.C., Qu, H., Xiang, W.J., Li, C.Y., Lu, C.J., & Yi, L.S. 1997 Control of Quadraspidiotus gigas and Lepidosaphes salicina using insect growth regulator, RH-5849.. Journal of Northeast Forestry University 25: 10-14.

Notes: 1,2-dibenzoyl-1-tert-butylhydrazine (the insecticide RH-5849) was tested in Heilongjiang province, northeast China, in the middle of May 1994 to coincide with the emergence of the target pests after overwintering. Between 86 and 98% of 2nd-instar larvae of Quadraspidiotus gigas (Diaspidiotus gigas) were killed by spraying RH-5849 in oil, diluted to 0.5-3%, on Populus xiaohei. Using RH-5849 in July against 1st-instar larvae which had emerged that year was equally effective. Mortality of Lepidosaphes salicina eggs and larvae varied between 93% and 100% with 1-3% RH-5849. When formulated as a 25% wettable powder and sprayed in June, 91-95% of 1st-instar larvae were killed. Natural enemies were unaffected by RH-5849 when tested in the laboratory and in the field.