Administrative instructions designating rust-resistant species and varieties of barberry and mahonia plants

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Material Information

Title:
Administrative instructions designating rust-resistant species and varieties of barberry and mahonia plants
Physical Description:
Book
Creator:
Hoyt, Avery S
United States -- Bureau of Entomology and Plant Quarantine
Publisher:
United States Department of Agriculture, Agricultural Research Administration, Bureau of Entomology and Plant Quarantine ( Washington, D.C )
Publication Date:

Record Information

Rights Management:
All applicable rights reserved by the source institution and holding location.
Resource Identifier:
aleph - 30584527
oclc - 793595941
System ID:
AA00023686:00001

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A,
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37 P Vw 314s
These in 'PU'S
supersede B. E. P. Tc W460t *
Bureau of Ent*abWt
The Chief Of th 004 40'
&irected in 1A to-
and variettos wtthin ,h 6-gw
basis of ev-ideiice- Ba t-jefdotO*, U -hUij
rust. The doterqAnation 6f eu h, rix0,tl-i-6161idtft'lZ
constitutes a rel X4-ftqu tbo -reb, rJotl
considerable extent -apon,-facts; withl a-the Iml OW
of A9riQUltkWa:. It,.bPLO,. baen:,- ,4,#V.e;ry!klue4, tha N
volved in the 'e "-,MwV6Tr 9f
nurseries are Inppected, to doterndne 4qtjk w AL
varietloo to Doi athgu
,The above, 4 pO '."-i:c!n of wrU8t-re4,PtAn
adds 13 speciog oj hoirtlau Lturaj varip4i wMictl 141 '6
f ound I bl*4 -gt
=0pne or zt.0, a, 4w: tq
it ed that these spoleltow-
are rust-resiatan f. aixthorlzat pn, far'their-'sh
latime in th6 gOVart. a qlAl be ac
under seotioq- 4.- ,of tbe Adpiz4ig
Oaluselp the'Lt, not to abA
imprapt icabl,6 44nci*
oause existi ;6r'labuing-th a7morown
Icati On
ubl.
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