Studies on Alternate Hosts of the Parasiotid Chouioia cunea (Hymenoptera: Eulophidae) Investigation on geographic distribution and identification of six Berberis spp. serving as alternate host for Puccinia striiformis f. sp. tritici in Linzhi, Tibet A STUDY ON THE BIOLOGY OF THE PINEUS ARMANDICOLA (HOMOPTERA:ADELGIDAE) Metapopulation approach for landscape level management of western tarnished plant bug, Lygus hesperus, in Texas (Hemiptera, Miridae)