198 
THE NATIONAL NURSEEYMAN 
LXCREASi: (.RAPE YIELD BY SPRAYING FOR 
INSECTS AND DISEASES 
Grape insect enemies and diseases may be controlled 
and a good crop of the berries practically assured if a 
careful spraying schedule is carried out, say A. L. Quain- 
tance of the Rureau ofEntomology and C. L. Shear of the 
Bureau of Plant Industry, of the United States Depart¬ 
ment of Agriculture. Owners of small orchards and 
vineyards do not sulhcinetly appreciate the fact, the 
specialists point out, that by the expenditure of a little 
time and moiu'y a large proportion of the fruit may be 
saved, repaying many times the trouble involved in its 
j)rotection. 
The princii)al insect enemies of the grape are the 
grape berry moth, the grape root worm, the rose chafer, 
the grape leaf folder, and the eight-spotted forester, all 
of which are eating insects; and the grape leafhopper 
and the brown grape aphis, sucking insects. The prin- 
ciap diseases which attack grapes are black rot, downy 
mildew, powdery mildew, and anthracnose. 
The use of combination spray solutions containing 
chemicals which act as insecticides or fungicides is ad¬ 
vocated by the specialists. The following spray schedule 
is recommended: 
SPRAY SCHEDULE 
First application'' About a week before the blossoms 
open or when the shoots are 12 to 18 inches long, spray 
wdtli Bordeaux mixture, 4-3-50, for fungus diseases, 
adding 2 to 3 j)ounds of arsenate of lead paste, or one- 
half that quantity of the powdered fonn, for flea-beetle, 
rose chafer, etc. 
Second application'' Just after the blossoms fall 
spray with the same materials as in the first application 
for the same fungus diseases and insects and for the 
grape berry moth, grape leaf folder, and adults of the 
grape rootworm. 
Third application'' About 2 weeks later use Bordeaux 
mixture 4-tT50, arsenate of lead paste 2 to 3 pounds, 40 
per cent nicotine sulphate 1 part to 1500 parts of the 
spray mixture, for fungus diseases, berry moth, light 
spotted forester, grape leaf folder, brown grape aphis, 
grape rootworm, and grape leaf hopper. To destroy the 
leaf hopper, direct the spray against the lower surface 
of the leaves. To control the berry moth thoroughly coat 
the grape bunches with the spray. 
Fourth application'' About 10 days later, or when the 
fruit is nearly grown, if black rot or mildew are still ap¬ 
pearing spray with neutral copper acetate or verdigris 
at the rate of 1 })ound to 50 gallons of water. 
WHITE PINE BLISTER RUST LEGISLATION IN 
MINNESOTA 
The Minnesota Legislature, recently adjourned, passed 
the so-called “Blister Rust” bill, giving the State En¬ 
tomologist certain powers in checking this disease, and 
also a])propriated for his use •^>15,000 for the next two 
years. This ajipropriation also insured the state’s ob¬ 
taining .'fUi.OOO from federal appro])riation, so that Min¬ 
nesota is well equipped to fight the disease, which is 
apparently confined to three or four localities close to 
its eastern boundary. 
IMMEDIATE QUARANTINE ON FIYE-LEAYED PINES 
AND BLACK CURRANT PLANTS FROM THE 
NEW ENGLAND STATES 
The Secretary of Agriculture has amended the white 
pine blister rust quarantine promulgated April 21, 1917. 
This amendment is made effective May 1, 1917, and pro¬ 
hibits the movement of white pines and black currant 
plants from the New England States to points outside of 
New England. This action was necessitated by the con¬ 
siderable movement now under way of possibly infected 
white pines, and to a less extent, black currants, from 
New England to States lying west and south. Both of 
these plants are important carriers of the blister rust 
disease, and most of the States to which these shipments 
were being made have State quarantines prohibiting the 
entry of such stock. 
SOME OF THE LEADING NURSERYMEN IN OR NEAR 
PHILADELPHIA, THAT THOSE ATTENDING THE 
CONVENTION WILL HAVE AN OPPORTUNITY 
TO VISIT. 
Andorra Nurseries, Chestnut Hill, Pa. 
Thomas B. Meehan Co., Dresher, Pa. 
Thomas Meehan & Sons. Germantown. Pa. 
James Krewson & Sons, Cheltenham, Pa. 
Rakestraw & Pyle, Kennett Square, Pa. 
J. W. Thomas & Son, King of Prussia, Pa. 
W. H. Moon, Morrisville, Pa. 
n. A. Dreer, Riverton, N. J. 
H. F. Michell, Andalusia, Pa. 
Hoopes Bro. & Thomas, West Chester, Pa. 
Morris Nurseries, West Chester, Pa. 
Conard & Jones, West Grove, Pa. 
Dingee & Conard, West Grove, Pa. 
Princeton Nurseries, Kingston, N. J. 
Hon. David F. Houston, Sec’y of x\griculture, 
Washington, D. C., 
Dear Sir;— 
As Vice-President of the American Association of 
Nurserymen and a member of the Executive Committee 
I wish to have your suggestions as to how the member¬ 
ship of the Association, which covers the entire United 
States, can aid the Government during the war. 
We are, as it were, producers of raw material for food 
production. I suppose 9-10 of the fruit producing plants 
and trees which are annually planted in the United States 
are distributed by the members of our Association. 
How can we further assist the Government? 
Your immediate suggestions will be greatly aiipreciated. 
Yours very truly, 
Lloyd C. Stark. 
April Seventeenth, 1917. 
Department of x4griculture. Washington. 
April 26, 1917. 
Mr. Lloyd C. Stark, Vice-President, 
American Association of Nurserymen, 
Louisiana, Mo. 
Dear Sir:— 
The sentiment expressed in your letter of April 17th, 
