China's grain yield increased from 1 t ha-1 in 1961 to 6 t ha-1 in 2015, while successfully feeding not only its large populationbut also supplying agricultural
Ophraella communa(Coleoptera:Chrysomelidae),the ragweed leaf beetle,is a biological control agent of the invasive common ragweed,Ambrosia artemisiifolia(Asteral