Vermont phÅ“nix. [volume] (Brattleboro, Vt.) 1834-1955, 1910-04-08
Treatment


only during the winter months. Many
different methods have been used but
most OF these are either worthless or too
expensive to be available
Trees nearly dead can probably be
saved by treatment; but this treatment
does not usually pay it takes the trees
so long to recover. In most cases IL Is
better to destroy such trees
Whale oil Soap.-Where but few
trees are affected, 1t is probable that the
easiest method Of treatment is To spray
them thoroughly with whale-oil soap.
using two pounds Of this TO a gallon OF
water. II must he remembered that only
those scales which are actually touched
by the spray are killed. SO that the spray
ing must be thoroughly done. The time
10 use this spray is while the leaves are
or, and before the buds have opened.
Some sprayers have had good results
by spraying in November and December;
but at the Massachusetts, Experiment sta
ton the best results have been obtained
by sprd wing as late in the spring as pos
sIble. before the buds opened. There are
several good whale-oil soaps on the mar
ket, but Bowker's tree soap has proved
the most effective one used at the eN-
pertinent station. The nozzle OF the spray
pump should be one which throws a fine
mist and the Gould's larger "Mistry' noz-
zle has proved excellent FOR the purpose,
though other nozzles are probably as good.
the materials and apparatus mentioned
here being those actually tested by the
experiment station.
This soap treatment is rather more
costly than the other method given below,
and does not kill as many Of the scales;
but ii is easier to prepare, and for that
reason Is better whore the number Of
trees to treat is small.
a recent material vailed Scalecide is
giving excellent results In some cases
4 where it can be applied twice, under great
/ pressure and with extreme thoroughness.
! one part Of Scalecide should be mixed
| with u or Il quarts OF water TO be strong
| enough TO kill the scales. This makes II
| rather expensive. but no boiling is needed,
as with the lime -sulfur mixture.
| "Lime-sulfur MiNture.-This is the
! best treatment yet discovered where the
number OF trees to be treated Is large
enough to make special preparation de-
sirable. Several formulas have been
given for making this spray but there
! seems to be little difference In the results.
The formula now used at the Massachu-
sets Experiment station is:
Lime ......................2 pounds.
Sulfur, ....................lS pounds.
Water ...,.....,...,.......4 as gallons.
las spraying is usually done with bar
rel pumps holding about so gallons this
formula is prepared to fill such a barrel.
The lime used should be the best stone
lime, freshly burned, and as little slaket
by standing as possible Finishing lime
gives excellent results.
THE sulfur should be either flowers o.
sulfur or sufur flour; stick sulfur vii
not do. These materials should be pre-
pared in an iron kettle holding at leas
80 or 40 gallons, as follows: Place or
gallons OF water in the kettle, start Z
fire under it, and Stake the lime, getting
this as fine possible in the shaking
When this is well under way gradual.
add the sulfur, stirring it in well, an'
keep the fire going to continue the hea
begun by the shaking lime. Boil the mix
ture, adding water as may be needed from
time to time, till the color Of the liqui
becomes dark orange-red. This shoul
take from 40 minutes to an hour, tn
longer boiling seeming TO bring more o
the sulfur into solution and leaving les
sediment at the bottom of the kettle
When the boiling is completed strain tn
liquid into the spray pump barrel, usin
a strainer OF copper wire Of at least 2
threads to the inch, then add any waite
necessary to make the As gallons, an
spray as with whale-Oil soap.
This treatment is the best yet dis
covered for the San Jose scale; but tn
trouble Of boiling and of obtaining
E kettle are drawbacks which II is desir
able to overcome. Some OF the ready
made lime sulfur washes now on the maj
ket seem to promise well as substitute
for the home made wash.
Many other trees besides fruit tree
J and many shrubs are attacked by tn
n San Jose scale, but the treatment II
I these is the same as that given above