B. E. P. Q. 503, Third Revision Superseding airoulars
B z. P, qn 486 and 4p Effootive September 11, 1941
TITLE 7 AGRICULTURE
CHAPTER III BUREAU 0F ENTOMOLOGY AND PIAWT QUARAWNINE
PART 301 -"DOMESTIC 'QUABANTINE NOTICES
RIE-FRINGED BEL3u AININISTRATIVE INSTRUCTIONS MODIFIED
Instructions as to various methods of treatment of plants in potp, or in'soil balls, and of potting soil, as previously authorized in Circulars B. E. P. 0.0 486 49l and 503s are brought together in the present revision of this circular. In addition the instructions as to treatment of balled nursery stock by methyl liromide .solution as specified in paragraph (ii) of subsection (b) are somewhat modified as to treatments within the regulated areas other than New Orleans and vicinity. All treatments apply to both species of white-fringed beetles, Pantomorus leucoloma Boh. and Pperegrinus Buch., and are uniformly applicable to all regulated areas except the methyl bromide solution treatment of balled nuraer s stock, the specifications of which vary for the New Orleans area because of the type of soil in that locality. This circular
ersedes all instructions in Circulars B. E. P. Q. 486, and 489, and previous issue of 503*
S301.72-5* Administrative instructions Treatments
authorized Parauant to the authority conferred upon the Chief of the Bureau of Entomlogy and Plant Quarantine by subsection (a) of 301.72-5, Chapter III, Title 7, Code of federal Regulations
[Reulation 5 of Notice of urantine No. 72 on account of the ito-fringed beetle], the following methods of treatment for
ants in pots, or with soil balls, and potted soil, are hereby thorized effective September 11, 1941, when carried out under the supervision of an authorized inspector of the United States Department of Agriculture.
(a) Plants in po ts or in soil balls(1) Methyl bromide fumigation at atmospheric pessures. (i) Fumigation must be done with methyl bromide at a dosage of 1 pound per 1,000 cubic feet, including the space occupied by the plants, for a period of 4 hours the soil masses. and the air in the fumigation chamber to be at a temperature of not less than 85 7.
Sumersedling H 8 T1.72-Ba ,and b
3-inch-rots orsmle.o 3msibalnograe thn3ncs cal, and~ the plants hlbesa-eonrcsstathegsmx ture can have access to all sides o~ h oso h olbls
(iii) Thefuiainsalb doeia-tgtca erwh gas-tight doors.
amut of methyl-bromide shal be volatize Lhrigadtear gas mixture shall be circulate& by masof a&a lwrtruh out the entire 4-hour fmgto eid
(v)Theueo uiaincabelndwt he ea
1,000a cuic fher bfcabrsaey~ldi h pc cuidb te commoity, wtanepsrof1 hu ,tevcumto beain
balled though th etieerod
(i)Thiomeauxafth oi alstbelbe7' .o
t iii Trehue ithiat- ther salb cruaedi fumgation (ame by menso afntefrt1 mntso h x ball s Th e slbls' -bewse wihoeo moec ngso ai t he n o (3epsuepeid
the tnadvauufmgtincabrwic a ecoe
c) Such soil balls shall be treated with a solution of
methyl bromide and a3lcool at a concentration of 0.3 percent methyl bromide and 0.6 percent denatured ethy alcohol by volume in water. The solution is to be prepared by first mixing the methyl bromide and alcohol together and then adding this mixture to the water and mixing thoroughly.
(d) The aqueous solution of methyl bromide and alcohol shall
then be applied evenly over the surface of the sand around the plants at the rate of 40 gallons per 100 square feet of surface area by means of a sprinkling can or sprayer.
(ii) Tye of material, eposure, and temperature.
(a) In Orleans Parish, including the city of New Orleans,
Saint Bernard Parish, and regulated parts of Jefferson and Plaquemines Parishes, La., the treatment shall be applied only to plants in soil balls not greater than 7 inches in diameter, nor greater than 7 inches in thickness rbRn not spherical. After the required dosage has been applied, the soil balls shall remain embedded in the sand for a period of S hours. The temperature of the soil balls during the treatment shall not be lower than 65b* F.
(b) In all regulated areas other than Orleans Parish, including the City of New Orloans, Saint 3ernard Parish, and regulated parts of Jefferson and Plaqueninos Parishes, La., the treatment shall be applied to soil balls not greater than 8 inches in diameter nor greater than inches in thickness when not spherical. After the required dosage as been applied, the soil balls shall remain embedded in the sand. for a period of 6 hours. The temperature of the soil balls during th reatment shall not be lower than 620 F.
(C) Potting soil.
(1) Carbon disulphide ftiu&a tion. (i) Potting soil shall be treated in a container with cc.rbon disulphide at a dosage of 2 pounds per cubic yard of soil for a period of 48 hours.
(ii) The grade of carbon disulphide shall be comparable to U. S. P. grade having a specific gravity of 1.25 at Go F.
(iii) The container shall be tight, preferably lined with
sheet etal, shall have a tight cover or be covered with a tarpaulin immediately after the fc-igant is applied. The container shall not be more thanL 36 inches Gleep.
(iv) The soil shall be friable, and wet soil shall not be
treated by this method. The fumigant shall be applied to the soil in holes 3 inches deep, the dosage to be evenly divided anong holes 1 foot apart over the surface of the soil, and the fumigant shall be covered with soil as soon as it is applied.
(v) The temperature of the soil shall not be lower than 400 7 during the entire time of treatment.
(vi) The odtino ''esoladteaprtsUelad
the method of application o' hPia:tmt etwt h p
prova of an authorized inspector of teUie ttsDprnn of Agriculture,
(2) Mothiyl _brorid f~l fi) PottigsiVatb
trae -n a container with riethyl broT1ide in a ~s 4 ui
centiuactors of Lithyl brormtdo~ per cuboic yard of si ra eido 14$ ihours,
(ii) The siOdes, bottom, and seam's of the contanrsllb
tight, preferably lined .-ith sheet, metal., an,-dhllhv a t& cover or be covered with a tarpailin imdaeyftrheuign is applied.
(iii) The condition of the soil adteaprtsue n
the method of application of the fmgn itre h prvlo
an aithorizedI inspector of the UniteC. StatesDeatnto gi-l
(3) Heat tre.A-ment 0) Live stenm ne resr f9
Pounds or more per saire inch, shall be apIiethogagrdf perfora-ted pipe.- at the b ottom of the sterilizin o rtukbd containing the soil, fEor a period- of 415 minutes orutilalprt.f the loadl reach a toriperature ofF 2000 F
(ii) The gridis shLlall be constructed of 1-nh lpspr fora-ted with holes 1/32 inch in dliamtor on theup~ eadcon
necting at onae end to .- uninifold into which the semi nrdcd
(iii) The layer of soil in the sterilizigbxs-:1nte rmore then 2 fteet, 6 inches deep.
(c) fliscliizeMr, There has been oppprtuit ots hs
treatments on only relatively ev vrieties ofpat n i -ahrz
ing the r-ovement of potted plants, nursery stock or pottin soi u gated according to the reayuireronts stated above, -1t is udrto that no liability sIhall attach eith'ler to tho United States Dprmn of Agricultur2e or to any of its employees in th -eet ofijuyt eit!I-_r plants or operators.
U-) Caution. (1) Methyl bromide, ohlboicei a
at ord-1inary tenperatuxcs, It io colorl~essa rciclyools in concentr~atiocns used for ftnig-ation of plngoptig.sl.I is a poison and- the operators sh--oulOdL useapoe a ~ssvl x
posed to the gas in cone ntrat ions used i uiain ~ epe
paring the solution. The plants in thefnjaincabrsludb Tell aerated by blowing air tbI.rouhtemdteromaqael ventilated before it is entered.Afe iigannthpoigsilb
Elot1hyl brolrad tue cover shoul be riivO n,' h olalw,- o
(2) Carbon dis~ilphide. Car'bon., OisuiphidOe is a blood poison, bt poisonling by this chemical is rare. Ex~osure to tlhe vapor may cue giddiness aid heaOtache. Wien thcse Sympto.'s develops the in-. dvial shouiid sot into tie open. air.
Done at Washington, D. 0., this 4th day of Sopter~ber 191.
P. N. J2AAID
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UNIVERSITY OF FLORIDA 3 1262 09312 1647