Herbicidal compositions are disclosed comprising an effective amount of flufenacet, pendimethalin and diflufenican. The client device displays a first filter definition template and an attribute list. In particular, improved cardinality estimates are generated for one or more query execution plans for the query using statistics of one or more pre-defined queries that vertically overlap the query. The individual planar laser illumination beam components produced from each PLIM are optically combined to produce a composite substantially planar laser illumination beam having substantially uniform power density characteristics over the entire spatial extend thereof and thus the working range of the system.