New-York tribune. [volume] (New York [N.Y.]) 1866-1924, 1897-09-13
TREATING GARDEN ROSES.
HOW TO DESTROY THE INSECTS THAT
CAUSE THE DISEASES.
THE TROUBLESOME GREEN FLY. ROSE BEETLE
yrIr HOPPER SLUG GALI-FLY. MIIDEw

TIVE TROUBLESOME GREEN FLY. ROSE BEETLE
LEAF HOPPER SLUG. GALL-FLY. MI1DEw
AND THE ROSE RUST
In a paper on Garden Roses and Their Dis
eases" read by =. OMara at the AhhaHoaie w
" Rose Show, he said:
"Of the insects that cause diseases the hrs' Is
the green fy. This is one OF the most coih'non'
but fortunately the most easily destroyed oi any
insect that attacks the rose as IL snccuihos 10 w.
bacco in any FORM the most convenient oeihs TO-
hacco dust. which should be literally scattered
go Tho nlants and be sure that II reaches the
under sides OF the leaves first wettng the foliage
70 that the dust will adhere 10 It, This shoud De
done as soon as the plants start TO grow SO as ~
nrevent the insects from gaining a foothoio' IN
which case It is difficult 20 get rid OF them
THE ROSE BUG.
"rbe rose beetle rose chafer or rose bug which
eats I'D the young buds and tender leaves almost
deees destruction. He is invncible. usually De
cause Of his numerical superiority. but hand pick
,rg and knocking off on sheets early in the morn
ing also a liberal use OF the powder bellows ana
pyrethrurr powder will get away with him. open
walls of bi-sulphide OF carbon. hung among the
plants is an efficacious remedy; but THINK most
people would tolerate the bugs sooner IMAM inc
remedy.
"rha rose-leaf hopper Is another annoying pest
treat him 10 whale-on soap or kerosene emulsion
and treat the slug TO the latter beverage aso
..rhe roo, rall-fy IL a small larva which attacks
.,s roo,s producing gals causing a rapid loss OF
vitality and eventually killing the plant attacked
The only sure remedy is 10 dig up the plants az
tackled root and branch. and burn them, "heh
found 10 be badly affected
..Mildew Is a species Of fungus generated by ex-
rosure 70 chilling winds and is apparent ~ the
1Sresence OF a grayish white film on the affected
parts II Is hard 10 effect cure IN me open aIi;
where the conditions which prodnced are IN
plau,s Wi flower or sulphur.
THE DREADED BLACK SPOTS.
"R,ack spot IS a parasitic fungus which mani
TESTS itself in the form OF round or irregulariy
.bsped black spots upon the upper surface or the
leaves Generally only the fuli-grown leaves are
attacked and the disease gradually spreads
through them destroying tho circulation or inc
ran and causing a premature fall OF the Foliage
The moss roses hybrid perpetuals ana the hybfld
tea roses are more subject this disease than are
the teas or monthly class. There is no known cer-
tain remedy for It UP 10 the present time. The
only thing to be done Is 10 pick off and burn all
affected leaves. as 70 prevent It's spread. ~ IL
ia quickly contagious II IS usually f. consequence
OF an injury 10 the roots, either by AZ .hcess OF
out OF doors the danger from drouth may DS
remeded by watering; but nothing can guard
egaius, injury from dull. wet weather Spraying
Is a preventive Kos@-lesf tpot IT. usually FOUND
where there is poor drainage and in crowded cor
ners, when the plants are too thick. reverse
thes. conditions 70 get rid Of II. and burn diseased
pose rust IL another form Of fungoid disease,
which can be checked by using mo copper fungl,
good cultivation are the best Safeguards. however.
against all"