Milford chronicle., 1910-05-27
SPRAYING FOR BROWN ROT

The newest thing in spraying in
Delaware is the use of arsenate of
lead and the self boiled lime sui
phur wash for the two great enc
mics of the peach fruit, the curculio
and the brown rot. The United
States Department of Agriculture, |
in connection with the Experiment
Stations of several of the States, /
has been working on the problem /
and a pretty definite recommenda-
tion is now made. It is as follows
Spray about the time the caps fall
off the fruit with two pounds of
arsenate Of lead and three pounds
of lime to so gallons of water. In
two or three weeks from this time
spray with the self-boiled lime sui
phur, with two pounds of arsenate
of lead to so gallons of the wash.
A month later spray with the self
boiled lime sulphur, emitting the
arsenate of lead. The arsenate lead
paste is mixed with a little water
and added to the lime water in the
first instance and to the self boiled I
lime-sulphur in the second. For
both the second and the third spray I
ings the self-boiled lime sulphur is \
made by using pounds of quick \
lime and pounds of flour Of sui
phur to so gallons of water. The #
lime is placed in a suitable barrel
or other receptacle, and about two r.
or three gallons of cold water is I
poured over it, and as soon as it be- +,
gins to slake the moistened sulphur Fr
is added. As soon as the shaking Ct
is over the mass is cooled by adding y
cold water and then the spray is i'
diluted to so gallons, and strained -
ready for spraying. No fire is used s
in this process. Instead of this SELF -
boiled mixture, one and a half gall Fl
ons of the commercial lime sulphur
wash is sometimes used 10 the so =
gallons ofwater, and the two pounds :,
If arsenate Of lead. hi
In response to inquiries, letters LII
lave been received by the Delaware n,
State Board of Agriculture from =
lumber of Experiment Station men
irving their views and experiences.
)r. S. W. Fletcher, director of the n
1irginia Station, says: We are
recommending the use of
itherself-boiled, hOne
oiled, or factory boiled, for the
1mmer spraying of tree fruits We
re especially recommending the S.
Sc of self-boiled lime sulphur and
rsenate of lead on peaches, and the
Sc of factory boiled lime-sulphur
iluted I to 80 on varieties of fapples
object to bordeaux injury, such as
ell Davis, Winesap, Albemarle,
Id Grimes Golden"
Professor w. H Chandler, ofthe
University Of Missouri, writes
This station recommends the use Ma LIE
the self-boiled time sulphur and Thu
senate of lead, or of arsenate of Thu
ad with plenty of lime, to control MT0n Tbg,
{ peach curculio and brown rot Mon
good many men in this State Mon
we sprayed with arsenate of lead -
ice and have had very little peach
alb or brown rot. 1t seems that %bs SSfan
e arsenate Of lead has consider
le value as a fungicide, and con FG5s g5s
bling curculiO, almost controls Tues
own rot so we recommend either Tues,
-ing two sprayings with arseuate Tne., TT5,aa
lead. the secoud Of which is COM Erida
led with selt-boiled lime sulphur. lei
d another one about one mouth fhia'
fore the fruit is ripe with self
lied lime sulphur alone; or we
ommend the alternate plan Of -
aging twice with the arsenate of
d, using plenty of lime to pre- -
It injury"
Several others have tried this
ledy and all recommend it in
te of the fact that there is danger
)ossibleinjury to the peach leaves. n
Press Bulletin State Board of Ag-
allure, Dover, Del. May, 10, 1910.