Saint Mary's beacon. [volume] (Leonard Town, Md.) 1867-1983, 1915-11-25

parasitic within or upon them. Such
are truly friends OF the producer, but
they cannot be brought thoroughly
under his control until insect life Ii
better understood. Unable to identify
these friends or 10 understand their
operations. man too often treats them
as enemies or mininixes their nus
sion.
Birds AZ factors In insect control
should be recognized. IL 10 not un.
common 20 find large numbers OF birds
doing very effective work In con.
trolling insect outbreaks.
insecticides are substances which
XIII insects. Fungicides are substances
which destroy fungous diseases When
insects and fungous diseases prevail
| upon the same plants insecticides and
fungicides may be combined and the
two results gained from one appllea.
tion. Variable results have been OBJ.
tanned from the use Of insecticides and
fungicides due largely so climatic con.
ditions and TO the quality. age and
preparation of the ingredients used
and the combinations made. A knowl.
edge OF the pest being treated and the
nature OF the plant infested In an I'm.
portant consideration.
Spraying has passed the expert.
mental stage and Ia practiced by all
uptodate gardeners and fruit grow
ers. TIE grower should know the
| common diseases and insects that af.
feet his plants. should anow their
habits and life history, so as to know
what treatment to use and at what
stage In the life OF the organism. Too
much emphasis cannot be placed upon
the necessity OF doing the work nc
the right time with the proper solu-
tion and with thoroughness OF appii.
cation.
| The most successful applications for
plant diseases are made before the
diseases appear because the RENE.
dles are preventives rather than
cures. The vegetative portion OF the
fungus producing tha disease grows
within the tissue OF the host plant and
cannot be reached after u has OBJ.
tanned foothold. Proper application
of fungicide viii. however. prevent
the spread OF the disease 10 ether
plants. The best time TO spray for
diseases. therefore. is about the time
the spores are ripening and being dis
tributed.
| There are two general classes OF
disease. ID Fungous diseases are
those caused by the growth OF fungi.
which are small parasitic plants. CD
Bacterial diseases are those caused by
the growth Of bacteria. Under the first
head are most OF the common dis.
eases. az the bitter rot of the apple.
brown rot Of the peach and plum.
apple rust. apple scab. potato scab.
tomato rot. cucumber anthracnose
and mildew, etc. These can be success
fully kept I'm check by spraying. Under
the second head, are such diseases as
pear blight or fre blight. This can.
not be controlled by spraying because
all OF the growth 10 within the host
plant. The nrst thing to do ID TO find
out what the trouble In, then proceed
| practically I'm the work. Your state ex.
pertinent station urges that you come
10 them for assistance. The informa.
tion gathered from this source VIII be-
OF much greater value 20 you than can
be derived from any other source.
That 10 what state experiment stations
are for-to find out by actual tests
and intelligent observation. about all
these things. and then tell you about
them.