Trial of Three Biopesticides for the Control of Diorhabda Rybakowi on Nitraria Tangutorum
In recent years,the Nitraria tangutorum shrub forests in the public welfare forest areas of Alashan Left Banner have suffered from a large-scale infestation of Diorhabda rybakowi,which has severely affected their sand fixation and windbreak functions,and also impacted the quality of their host plant,Cynomorium songaricum.To find a safe,environmentally friendly,effective,and low-cost control agent,indoor and field trials were conducted using 5％eucalyptus oil SL,0.18％Abamectin and Bacillus thuringiensis WP(Sunderbao),and 1.0％matrine SL against Diorhabda rybakowi.The results showed that the 1.0％matrine SL at a dosage concentration of 1:1000 had the lowest control cost,and both indoor and field control effects met the requirements for leaf-eating pest control,with the highest comprehensive benefit.It is recommended to promote its use in large-scale control of Diorhabda rybakowi.
万方数据
维普
