. Bulletin (Pennsylvania Department of Forests and Waters), no. 40-45. Forests and forestry. 16 It is worse in very densely stocked beds and may comnletelv destrov of these troub es usually become noticeable in time ofdron^ht succeeding warm weather ' ^''^^ '^'" ''"'''"8^ ^^^ Aphids must be watched for constantly Once «tprt».i ti, st,tute a very persistent nursery trouble They mav hi f ^^ "i""' the so,l near one year old seedli^lgs, but'^are no7co";n^.d;^ ^n'\^. The Oreeâ.ooa ^^V:^^^^^l^^^^^o^^. nurser, soU. tl^n'oVtrpo^^dsoftf^^irjn'? °^'^'"'^.°'
. Bulletin (Pennsylvania Department of Forests and Waters), no. 40-45. Forests and forestry. 16 It is worse in very densely stocked beds and may comnletelv destrov of these troub es usually become noticeable in time ofdron^ht succeeding warm weather ' ^''^^ '^'" ''"'''"8^ ^^^ Aphids must be watched for constantly Once «tprt».i ti, st,tute a very persistent nursery trouble They mav hi f ^^ "i""' the so,l near one year old seedli^lgs, but'^are no7co";n^.d;^ ^n'\^. The Oreeâ.ooa ^^V:^^^^^l^^^^^o^^. nurser, soU. tl^n'oVtrpo^^dsoftf^^irjn'? °^'^'"'^.°'"^ ^^ ^P"'--"^" '^ -'«- Leaf '' anrsixtet'gallororwater' Wh'/" TT "'''''''' served on seedlings lifted for sh,>me,U the tr^es should t T °''; several times in a «; ^f r ! ^^ should be dipped "Black Le"f Fo tv" a ro,?e hu Xd''""n^' ^'^ "'' ^''^P' ""«=?â "* less to say that no tTes Lu b?K*^ °'r.°^ '^^*^''- ^^ *« need- have living aphids upon tS ""P"' ^'â "'" "^^ ""'^'y that The larva of the MAY RKPTt t;* GRUB, is a great destrter ofieedlL^'Thi -' ^''f ,''^"^T''- roots of coniferous and haWlwoodseete ThJ ^''''^ "" '^"^ killed, but the latter freouentlv 7r^^\T F' fonner are usually best results in exterminS j^'re ob uneVr'!'^'t"''^'^'^^' ^he to i<lentifv the see' teachmg weeders notify the nurserymanr:v^;^w!]l tiro^;!;; S^ Z'il'r .^I^ln 17 is found. The grub works shallow or deep, according to the heat "xedTour^ "rt'r'- /' 'T'' -P'd'y -d doe^not ollow a chemicals durini the ncH '""' *"' '"'â ''°" bisulphide and other ha^th^ -1? T ?->--"- =th?daml''ge-.!-th:: |e ^Tr: ^itffilthTUS Te-J-oslter^HtS^ kHh air*l'i°f: ?' ""'"f^T.^°y^'^>' ^''^>-' â¢'^f-*^ the ;eeds are p aue ⢠most effective remedy *"" "&quo
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Keywords: ., bookcentury1900, bookdecade1920, booksubjectforests, bookyear1923
