sentence: We found that the structure of the gut microbiota of G. molesta fed on the artificial diet ( CK ) and apples ( A ) was significantly different ( PERMANOVA : R = 0.654 , p = 0.001 ) , but there was no significant difference between the artificial diet-feeding group ( CK ) and the plum-feeding group ( PL ) ( PERMANOVA : R = 0.501 , p = 0.101 ) .