1910. 
THE RURAL NEW-YORKER 
201 
WORK OF THE GRAPE-BERRY MOTH. 
K. F., East Germantown, Ind. —1. For sev¬ 
eral years our grapes have become wormy, 
at time of ripening; they seem stung by 
an insect, and it is on the increase every 
year. If we are to spray, tell us what with 
and how often on grapes. 2. What is the 
best spray for apples, Codling moth and 
such, and when and how often apply it? 
Ans.— 1 . The cause of the wormy 
grapes referred to in the foregoing ques¬ 
tion is very likely due to the larvae of the 
grape-berrv moth. Small purplish-brown 
moths appear in grape vineyards in May 
and June and lay their tiny eggs, proba¬ 
bly on the stems of the blossom clusters. 
Here they hatch, and the young eater- 
spraying of arsenate of lead, four pounds 
to 50 gallons, given just before the blos¬ 
soms open, another given after the petals 
fall and a third when the fruit is very 
small will practically control this pest 
throughout the season by exterminating 
the first brood. Probably this pest is 
most commonly fought by picking off 
and destroying the “wormy” berries. 
This can be done by boys and girls more 
cheaply than one might think and is 
quite effective. Since the insect spends 
the Winter as pupae on the fallen leaves 
these should be raked up and burned, 
thus preventing the moths from issuing 
the following Spring. One element of 
failure in this method is due to the fact 
that many of the pupae break loose, 
remain on the ground and are not taken 
up with the leaves. 
VREELAND’S “ELECTRO” 
ARSENATE OF LEAD 
for three successive years has analyzed higher than any other 
brand at Experiment Stations, wherever investigated. Let us mail 
you the bulletins and see for yourself. Send your address to-day. 
We will also be glad to quote you on 
“ Electro ” Arsenate of Lead- powdered 
Bordeaux Pulp 
“ Bordeaux-Lead mixture 
Lime-Sulphur Solution 
Sulphur 
Pruning' shears, knives. 
Spray pumps, etc., etc. 
THE VREELAND CHEMICAL COHPANY 
Hudson Terminal Building 
50 CHURCH STREET, NEW YORK 
Factory : LITTLE FALLS, NEW JERSEY 
“Equal to the Best and Better than the 
Rest." 
SCALIME 
Stands at the head of Lime and Sulphur solutions Re¬ 
quires no boiling. Kills all scale. Write for circular. 
CHESTER COUNTY CHEMICAL CO., 
9 N: High Street, West Chester, Pa: 
JARVIS SPRAYING COMPOUND 
IS THE CHEAPEST AND BEST. IT HAS NO SUPERIOR. 
SURE CURE FOR SAN JOSE SCALE. 
Buy direct from the manufacturer and save money. Spray¬ 
ing Compound ready to mix with water. One gallon of Spraying 
Compound will make sixteen gallons of spray. 
Terms i —In bbl. lota (50 gal.) 80c. per gal. 
We would refer you to J. H. Halo the Peach King, or Prof. 
Jarvis of (he Connecticut Agricultural College. They will tell 
you there Is nothing better. 
THE J. T. ROBERTSON CO., Box R, MANCHESTER, CONN. 
Empire King. 
He who attempts to grow fruits without a Sprayer is handi¬ 
capped. Blight and bugs, rot and rust, mold ami mildew, all 
conspire to damage the crop, and in all cases succeed if the farmer does 
not spray. This is the only hand pump having automatic agitator and brush for clean- 
ing strainer. Valuable book of instruction free. FIELD FORCE PUMP CO., 2 IITH Sr., ELMIRA, N. Y. 
THE GRAPE-BERRY MOTH AND ITS WORK. 
pillars immediately begin eating the blos¬ 
som buds even before the latter open. 
They spin a delicate web among the buds, 
and, as the larvae feed throughout June, 
they soon attack the recently set ber¬ 
ries. As a result, many buds and young 
berries are destroyed, a flower cluster 
often suffering 'severely. Really more 
injury is done by the caterpillars of this 
brood than by those of the second 
one, yet one rarely notices the work 
of these June larvae. One phase of 
their work, at this time, should be em¬ 
phasized, and that is, that they live and 
feed upon the outside of the buds and 
fruit clusters and not within the berries. 
Consequently they can be reached at 
this time very effectively with a poison 
solution. By July, when the caterpillars 
have become full grown, they crawl to 
the leaves, cut a peculiar flap from the 
leaf, pull it over and tie it down with 
silken threads. They then line the inside 
of this with silk, thus forming a cocoon 
in which the larvae transform to pupae. 
In about two weeks the second brood 
of moths begin to come forth from these 
cocoons, and in a few days begin to 
lay their shining eggs on the grape ber¬ 
ries and on the stems. When these eggs 
hatch, the emerging caterpillars gnaw 
their way through the skin of the berry 
and burrow inside of the grape. It is 
these caterpillars that are best known 
and that cause the “wormy” grapes. 
Note that they cannot be reached with 
a poison at this time. 
The most noticeable and destructive 
work is done by this brood of cater¬ 
pillars working in the grapes in July and 
August. The berries often become in¬ 
fected by fungi as a result of the in¬ 
juries caused by the insect and decay 
soon sets in. Where this pest is abund¬ 
ant, the injury is often quite extensive. 
When these caterpillars reach full size 
they make cocoons on the leaves exactly 
like those of the first brood and many 
of the later ones pass the Winter-as 
pup;e in their cocoons attached to the 
fallen leaves lying on the ground. There 
may be a partial third brood of cater¬ 
pillars that work in the berries through 
September. A study of its life history 
shows that the grape-berry moth is best 
controlled by spraying for the first brood 
of caterpillars in June. At this time they 
are feeding on the outside of the buds 
and clusters of young grapes and can 
be easily reached with the poison. One 
2 . There is no cure-all spray for apples, 
but the Codling moth may be controlled 
by spraying just after the petals fall 
and while the calyx is still open with 
arsenate of lead, two or three pounds to 
50 gallons, again about io days later, 
and a third spraying three or four weeks 
later, when the moths are depositing 
their eggs for a second brood. 
GLENN W. HERRICK. 
as big and broad 
choose to make it. 
as YOU 
Our Guarantee is iust 
“SCALECIDE” 
applied to your fruit trees will absolutely kill SAN JOSE SCALE and all Fungous troubles 
controllable in the dormant season. Five years of proofs. 
Prices: In barrels and half-barrels, 50c. per gallon; 10 gal. cans, $6.00; 5 gal. cans, $3.25; 
1 gal. cans, $1.00. Tf you want cheap oils, our “CARBOLEINE” at 30c. per gallon is the 
equal of ANYTHING'ELSE. Send today for free Booklet, “Orchard Insurance.” 
B. G. PRATT COMPANY, Mfg. Chemists. 50 CHURCH ST., NEW YORK CITY 
0 
For San Jose Scale, and to Improve Health of Tree and Shrub. 
BOWKER’S 
Concentrated 
Lime-Sulphur 
Made in New England. FRESH from Factory to User. 
N OW IS THE TIME TO ORDER Lime-Sulphur, 
which should be used while the trees are dormant. It 
destroys San Jose and all other Scale Insects and fung¬ 
ous spores wintering on the bark. It improves the health of 
the tree by destroying the mosses and lichens. As J. H. Hale 
says: “It smoothes up the trees.” 
All ready to use by adding cold water. No boiling, no special mixing 
plant required; no guesswork as to formula. Just add cold water, and spray. 
Before spraying your orchard, post yourself about Bowker’s sprays.—Write today for prices. 
INSECTICIDE COMPANY, 
43 Chatham St., Boston, Mass. 
BOWKER 
Manufacturers of Bowker’s PYROX for fruits and vegetables. 
