▁unless ▁a ▁notice ▁of ▁intention ▁is ▁given ▁and ▁prohib it ▁the ▁cutting ▁of ▁h ed ges ▁within ▁the ▁bird ▁nest ing ▁period . ▁ ▁The ▁main ▁thre ats ▁come ▁mainly ▁from ▁invas ive ▁species , ▁heavy ▁gra zing ▁and ▁dam aging ▁activities ▁such ▁as ▁non - native ▁plant ing , ▁native ▁f elling ▁and ▁dump ing . ▁There ▁are ▁instances ▁of ▁f elling ▁( both ▁legal ▁and ▁illegal ) ▁of ▁ash ▁trees ▁for ▁the ▁production ▁of ▁hur le ys . ▁ ▁There ▁are ▁around ▁ 1 8 0 ▁significant ▁trees ▁in ▁County ▁Kil ken ny ▁included ▁in ▁the ▁Tree ▁Register ▁of ▁Ireland , ▁compiled ▁by ▁the ▁Tree ▁Council ▁of ▁Ireland , ▁based ▁on ▁characteristics ▁such ▁as ▁age , ▁height , ▁diameter , ▁historical ▁or ▁fol kl ore ▁connections . ▁The ▁tall est ▁tree ▁in ▁Kil ken ny ▁is ▁a ▁silver ▁fir ▁of ▁ 5 . 3 9   x   4 3 m ▁located ▁at ▁Wood stock ▁Gard ens ▁in ▁In isti oge ▁and ▁the ▁tree ▁with ▁the ▁largest ▁g irth ▁is ▁a ▁common ▁l ime ▁of ▁ 9 . 0 1   x   2 7 m ▁located ▁at ▁C ool more ▁House ▁in ▁Thom ast own . ▁At ▁present ▁there ▁under ▁the ▁Pl anning ▁and ▁Development ▁Act ▁( 2 0 0 0 ) ▁there ▁are ▁ 4 ▁Tree ▁Pres ervation ▁Or ders ▁( TP O ) ▁in ▁County ▁Kil ken ny ▁for ▁the ▁protection ▁of ▁trees , ▁groups ▁of ▁trees ▁and ▁woods ▁of ▁amen ity ▁value . ▁These ▁include ▁Old court