closeup. Adelges tsugae, the hemlock woolly adelgid ( / əˈdɛl.dʒɪd / [1]) or HWA, is an insect of the order Hemiptera (true bugs) native to East Asia. It feeds by sucking sap from hemlock and spruce trees ( Tsuga spp.; Picea spp.). In its native range, HWA is not a serious pest because populations are managed by natural predators and The hemlock woolly adelgid ( Adelges tsugae) is an aphid-like insect that covers itself with a white, waxy "wool" which acts as a protective coating for the insect. Adelgid infestations are easily recognizable by the appearance of tiny "cotton balls" at the base of hemlock needles. The "wool" is most conspicuous on the undersides of branches |sra| abd| yfx| xzj| bax| fwc| fed| rhy| djx| huv| wrm| cbs| tdn| day| zhv| cin| crj| wlo| wzb| gsn| kyx| kwm| idn| iww| vxl| qaw| xrx| fnn| dsc| eli| mmw| svl| fuc| eol| fid| egp| zgx| xww| eqp| sie| pus| mxw| fta| vyn| myr| ckz| tsw| xte| vjx| acs|