The Palatka news and advertiser. [volume] (Palatka, Fla.) 1908-19??, 1910-04-29
Spraying Treatment for
White1y.

= "a A-@lL.- u % "a -EL..ar Z : Az. .
HKEE &TE IA s&
The spring brood OF whtenies is now
on the wing and the problem Of how ,c
check these pests again presents itself
Though the spring IS doubtless not SC
good a season in which to spray the
whiiefly as fall and winter, il is easy to
reduce its numbers considerably BY
spraying the young Scalelike larvae soon
after they have haiched.
Spring Spraying
In localities where the fungi have not
given satisfactory results and the trees
are out OF condition, or where the own
ers have preference for using insectici.
dal sprays, soap solutions or emulsiOns
OF oils can be employed with satisfactory
results, As stated in former bulletins,
whaIe-oil soap, pound TO 2 gallons OF
water, gave good results when applied
TO the just-hztched whilefly larvae, and
to young larvae less than about three
weeks old. For larvae three weeks old
or more, the stronger solution of
pound to gallons is TO be preferred.
Common laundry soap. such as Octa,
gon soap, gave slightly better results
than soft whale-oil soap. Common
soap may be employed when only 4
small number OF trees are 10 be treated
as in a house lot
Golddust washing powder has been
used by some growers, apparently with
good results; but NY experiments show
that pound OF good whaie-oil soap t.
gallons OF wafer is as effective as
pound OF Golddust to gallons of wafer.
Golddud consists OF washing soda and
soap, and a similar and equally effective
mixture may be made from pound OF
whale-oil or laundry soap with pounds
OF washing soda tor sal soda, dissolved
in 10 gallons OF wafer.
Several miScible oils have given ex
cellent results for spring and summer
spraying when sufficiently diluted 50 as
not TO injure the fruit or foliage; and
these are al the same time somewhal
more effective than soaps against scales.
Spraying should not be done when
large numbers of the winged whiteflirs
are swarming, nor before the eggs have
Matched; for many of the adults would
fly away uniniured, and return later on
to deposit their eggs. The c g are no
destroyed 10 any large extent by spraying
solutions. Ten to fourteen days aiici
the disappearance of the spring brood
adult whleilics, The eggs laid by this
brood will have hatched. and the youn.
larvae will then be quite readily killed
By insecticides. By careful spraying
q grower can destroy up 10 IS per cent.
of these Young larvae. He therefore has
it in his power TO nearly free his grove
from the pest. for the time being
With large trees, the percentage killed
will OF course be less, owing to the
difficulty OF spraying; but should only
IS per cent Of the larvae be destroyed, il
will be sufficient to save The trees from
serious injury.
Such spraying as is here recommend
whileily, but to reduce it to compare
lively Insignificant remnant at each
spraying 1t is hardly practicable l.
eradicate it by any means yet known.
but it is possible 10 control it,
If the spraying is done thoroughly this
spring, il may not be necessary to do
any further Expressive work before next
October or November, except that tn
fungi may be spread during the period
Of summer rains if the whiteily gels
abundant
In October or November, or soon at.
Ter the fall brood of adults has wholll
disappeared, the trees may be sprayed
again: unless the fungi have succeeded
in keeping the insects sufficiently it, J
check during the summer. After tn
fall spraying, it will not be necessary 10
spray until the following April or May
By following out these recommends
lions the grower can protect his trees
against injury from whitely fairly we'll.
whether the pests in ncigh0Oring groves
are controlled or not. The secret con.
sists simply in destroying the greater
number OF each and every brood OF
larvae as soon as it develops, whether
the whiteiiies that laid the eggs migrated |
from adjoining groves or developed f.
from larvae bred in the trees. This can +.
be done by spraying in April or May |
again, if necessary, in June or July; and |
again in October or November. Spray |
is hatched, which is about ten to four
teen days after each brood OF winged .
has disappeared.
The Fungus Diseases
In localities where the fungus diseases /
OF whiteily have given definite results,
growers will probably prefer to depend
upon these and should bear in mind that
they can greatly assist the fungi by arti.
ficiaIly introducing and spreading them,
during the period OF summer
rains. If ii is intended TO introduce fun
gus in April or Nay, periods OF rain
should De selected; Otherwise it is gen
orally best to wait until the time OF the
summer rains.
Practical Poetry.
PA, here's Il piece # poetry that
says something about 'moated