) TO PREVENT MILDEW OF CLOTH
By P. H. Rolfs
J Various kinds of fabric are -ised for protecting plants
against light frosts and even against freezes. The lighter cloths,
such as cheese cloth, or plant bed cloth, is used extensively over
seed beds in the summer time to protect them against the direct
rays of the sun.
A considerable amount of this cloth can be purchased
already treated, with both the formula for preventing mildew and
with paraffine, water proofing.
Mildew formula #1: Formaldehyde solution.
Dip the cloth in 10% solution of formaldehyde (formalin)
and fold away wet. This will preserve the cloth for several months.
Mildew formula #2: Zinc sulphate solution.
Zinc sulphate -_------------------------------_-- 7j lbs.
Sal soda .__ _--------------------------------_-- 7 lbs.
Tartaric acid ..... .................. ............. ....... 15 oz.
Water ..................................................... 300 gals.
Directions: Dissolve the zinc sulphate in a barrel of
water, then diseclve the tartaric acid and sal soda in water. As
each of these has beer dissolved in water, pour into the zinc sul-
phate. Dilute to 300 gallons. Soak the cloth in this solution for
24 hours being careful to have the cloth freed from air bubbles and
dry without wringing.
Mildew formula #3: Copper sulphate solution.
Sal Soda __ ~ _____ ____........ ...........__......... __.............. lbs.
Tartaric Acid. 15 ounces
Copper Sulphate --..-------------------------------............ 7 lbs.
Water --- I ----------------------3................................................. 300 gals.
Directions: Formula #3 is prepared by dissolving the
copper nulphate first, mix in a way similar to formula #2 ard the
method of treatment the same.
FLORIDA AGRICULTURAL EXPERIMENT STATION,
'~tj rr '
TO rdVT .DEN OP CLOTH
TO1 j~~earT~fis? MIJ^JB^ off CLO,~
-..arious kinds of fabric areaowse for protecting plants -
against light J frosts and even against freezes. The lighter l lotha,
such as cheese olojh, or plant bet cloth, is used extonsivtfly over -
soed beds in the summer time to protect them against the direct
rvys of the sun.
A oonsiderable amount of this cloth. oan be purchased
already treated, with both the form1aa for preventing mildew and
itth paraffin, water roofing. .
SMilldew fornlna 4fsi ormaldehyde -solution.
Dip the oloth in 10 solution of formaldehyde (formli n) -
a, ad fold awy wet. This will preserve the oloth for several
S months. .
.. ..... __ .- . .- U.
M-ildew formula 18: Zinc sulphate solution.
SSc~sulphate .............. ,,. 7 /2 1/ bs.
Tartario asid .,.......; .......... 15 o-,
ater O,..g.al....,.,.,...., 500 gals.
S water, then daisolv the taltatid acid and sa soda in water. As
-easoh of theie have been disolved in water pour into tho aino
s. llate. Dilute to 300 gallons. easc the Aloth in this solution
for 84 bra. h being o careful to have athe cloth s red from air bubbles
i- ldi forn-mla iDs Copper sulpth tt solution.
S.tIonarbZorZIsala # 3 is preparedd in a way si.il;r to .:-.
*^ fp^rpf # aa 'the nothd -of treatment tho@ aeaa -
:.~ '. *-. -". ...... :' " -.
o Prevent Mildew of 'loth.
wet/o Trtnrer al, "ot
S0the cloth in a 10 solution of Formaldehyde (form.alin)
iormul 1lo. 2. ( Grom la. Grower eb. 2, l 19 \
Sal Goda - 7 pounds \
Tartaric acid 1 ounces i
Zine sulphate a p a 74 pounds.
Water 300 gallons.
DIRECTIONU. "Dissolve the zinc or copper silphate in about a barrel
of wVaer. Likewiee te sal soeda. Then pour together i ni a 300
Salon tank containing 200 gallons of water; add the tartaric acid
wPotaula rinio 3ng.
Zall soda a a 7* pounds
th thus traded wil .from three to yearunder the
Copper mulphate -- 7 pounds
DiRECTIONu. wDihaolve the sine or copper utlphate in about a barrel
of r0. tlikewlse th;e sal soda. Then pour together into a 300
gatllon tank containing 200 gallons of water; add the tartaric acid
and stir, The fabric should be ao~ked 24 hourmor longer if evp
every part ham not been thoroly vet. Tie cJloth should be dried
without ringing. 3 "' 3
Cloth thug treated will l.ast from three to five years under the
severest conditions, while untreated cloth will. become worthless in
a month under the saee eonditionns,