- g rown ▁white ▁spr uce ▁are ▁frequently ▁dis fig ured . ▁ ▁Control ▁efforts ▁ ▁Ext ensive ▁research ▁into ▁sex ▁ph er om ones ▁or ▁sex ▁attract ants ▁has ▁been ▁done ▁to ▁explore ▁the ▁possibility ▁of ▁using ▁them ▁in ▁conc ord ance ▁with ▁insect ▁tra ps ▁to ▁prevent ▁moth s ▁that ▁are ▁attempting ▁to ▁mate ▁from ▁reaching ▁the ▁spr uce ▁tree ▁either ▁to ▁mate ▁or ▁to ▁ov ip os it . ▁Att empt s ▁to ▁use ▁Tr ich ogram ma ▁was ps ▁to ▁par as it ize ▁and ▁kill ▁eggs ▁before ▁they ▁h atch ▁have ▁been ▁largely ▁un success ful , ▁so ▁at ▁present , ▁suggestions ▁for ▁spr uce ▁bud ▁moth ▁control ▁include ▁sp ray ing ▁with ▁p estic ides ▁at ▁strateg ic ▁intervals , ▁including ▁during ▁late ▁July ▁when ▁ov ip osition ing ▁occurs ▁and ▁the ▁following ▁year ▁in ▁early ▁May ▁when ▁the ▁eggs ▁h atch ▁into ▁lar va e .   Fin ally , ▁there ▁are ▁nut r itionally ▁de ple ted ▁white ▁spr u ces ▁that ▁are ▁resist ant ▁to ▁harm ▁by ▁the ▁spr uce ▁bud ▁moth . ▁A ▁suggestion ▁by ▁research ers ▁for ▁cont rolling ▁spr uce ▁damage ▁by ▁the ▁moth ▁is ▁to ▁plant ▁resist ant ▁trees ▁alongside ▁non - res istant ▁trees ▁in ▁order ▁to ▁potentially ▁lower ▁the ▁overall ▁effect ▁of ▁the ▁moth ▁on ▁the ▁spr uce ▁plant ation . ▁ ▁References ▁ ▁Category : O le th re ut inae ▁Category : M oth s ▁described ▁in ▁ 1 9 6 7 ▁Category : M oth