1929] 
SERVICE AND REGULATORY ANNOUNCEMENTS 75 
Rhodotypos kerroides Jetbead. 
Rhus typhina.. Staghorn sumac. 
Rosa spp -. -- Rose. 
Sambucus canadensis - American elder. 
Sambucus nigra — -— European elder. 
Sambucus pubens.... - Scarlet elder. 
Spiraea billiardi . ~- - Billiard spirea. 
Spiraea bumalda . - - - Bumalda spirea. 
Spiraea douglasi Douglas spirea. 
Spiraea japonica.. . - -- Japanese spirea. 
Spiraea reevesiana Reeves spirea. 
Spiraea semper flor ens - - Perpetual spirea. 
Spiraea vanhouttei Vanhoutte spirea. 
Styrax japonica - Japanese snowbell. 
Symphoricarpos racemosus . - Common snowberry. 
Symphoricarpos vulgaris - Coralberry. 
Syringa japonica . - Japanese tree lilac. 
Syringa josikaea - - Hungarian lilac. 
Syringa vulgaris - Common lilac. 
Tamarix gallica indica (T. indica) French tamarix. 
Tamarix hispida Kashgar tamarix. 
Tamarix odessana Odessa tamarix. 
Viburnum sop - Viburnum. 
Weigelia (Diervilla) amabilis Rose weigelia. 
Weigelia (.Diervilla) rosea... Pink weigelia. 
D. Deciduous ornamental trees 
The following deciduous ornamental trees can be disinfected successfully by 
the methods recommended for deciduous ornamental shrubs : 
Acer dasycarpum. Silver maple. 
Acer japonicum.. Fullmoon maple. 
Acer palmatum. Japanese maple. 
Acer platanoides Norway maple. 
Acer rubrum Red maple. 
Acer saccharum Sugar maple. 
Aesculus hippocastanum . Horsechest nut . 
Betula alba Eurojean white birch 
Catalpa bungei Manchurian catalpa 
Fagus sylvatica European beech. 
Fraxinus ornus. Flowering ash. 
Liriodendron tulipifera Tuliptree. 
Magnolia acuminata Cucumbertree 
Magnolia glauca Sweet bay. 
Morus alba White mulberry. 
Plalanus orientalis .. European planetree. 
Quercus palustris Pin oak. 
Quercus rubra. Common red oak. 
Robinia hispida Rose-acacia. 
Salix babylonica Babylon weeping willow. 
Sorbus aucuparia . European nountain-ash. 
Tilia tomentosa. Silver linden. 
Tilia vulgaris Common linden. 
Ulmus americana A merit an elm. 
E. Broadleaf evergreens 
The soil about the roots of the following broadleaf evergreens can be disin- 
fected only by treating with carbon disulphide emulsion in the field. This 
should be done in early spring or in the autumn when the minimum soil tem- 
perature is between 40° and 50° P. at a depth of G Ind i 
Abelia chinensis ( ! binese abelia. 
Azalea amocna Amoena a/alea. 
Azalea hinoedgiri (hinodigiri) Hinodeglri a/alea. 
Azalea indica In i 
Azalea obfumi kiuaiana K\ushu azalea. 
Buxua 8t 'iiptrvirens Common box. 
Ootoneatter horizontalis Rock cotoneaster. 
inrfo jaj anese holly. 
Kalmia latifolia Kalmia, mountaln-laural. 
Pachysandra terminalis Japanese pacln san.lra. 
Pyracantha enccinea .. Scarlet tirotborn. 
Rhododendron cntnuhU use Catawba rhododendron. 
Rhododendron maximum rhododendron. 
/'. Karrowleaf Wvergra m 
The following narrowleai evergreens ran be disinfected In the field only with 
carbon disulphide emulsion under the same conditions as stated for broad- 
leaf evergreens. 
