772 
THE NATIONAL NURSERYMAN 
Hmong experiment Station 
Cdorkers 
PLUM CURCULIO AND METHODS FOR ITS CONTROL. 
BROWN ROT FOR EXPERIMENTS FOR 
SEASON 1909 
Georgia State Board of Entomology, Atlanta, Ga. • 
Bulletin No. 32 
Complaints of financial losses in the peach industry of Georgia 
by some of the larger growers made to the Georgia State Board of 
Entomology has led to a series of experimental efforts to control the 
annual havoc of the plum curculio and brown rot disease upon the 
peach crop, the results of which are now given to the public in this 
bulletin. 
Part I discusses the results of two years’ extensive experiments 
upon the curculio by two methods of control (1) jarring, (2) liquid 
spraying with arsenical poisons. The method of jarring was found 
impractical from an economic standpoint and inefficient as a 
remedial measure. The heavy cost involved in the operation of a 
sufficient jarring force, its comparative ineffectiveness, and the 
brevity of the season at which effective jarring can be done, are 
obstacles too serious for successful manipulation in large orchards. 
Curculio can be controlled largely, the experiments proved, by the 
application of arsenate of lead at a ratio of 2 pounds to 50 gallons 
of water, to which is added a milk of lime solution made from 3 
pounds of stone lime. Two applications are recommended, the 
first to be applied as the shucks are shedding, and the second two 
weeks later. In thrifty, healthy orchards where the foliage growth 
is dense, three applications are recommended, but it is unsafe to 
spray weak trees more than twice. 
Part II discusses the brown rot experiments conducted in 
Georgia during 1909, giving results which promise effective control 
of brown rot and the curculio. The solutions made of Bordeaux 
mixture and of concentrated lime-sulphur resulted in injury to 
fruit and foliage, when used with or without the arsenate of lead, 
but the combination of the two remedies—self-boiled lime-sulphur 
and arsenate of lead—resulted in successful control, much more 
efficient than the self-boiled lime-sulphur alone. It appears, how¬ 
ever, safer to apply the arsenate of lead with the self-boiled lime- 
sulphur mixture than alone. 
The following treatment is recommended for brown rot and 
curculio: 
Spray first about the time the shucks (not the colored petals) 
are shedding, with arsenate of lead 2 pounds, lime 3 pounds, to 50 
gallons of water. 
Make second application three weeks later, using the self-boiled 
lime-sulphur and arsenate of lead (8 pounds of lime, 8 pounds of 
sulphur, 2 pounds of arsenate of lead to 50 gallons of water). 
Make the third application about four weeks after the second, 
using the self-boiled lime-sulphur alone, without the arsenate of 
lead. 
If the curculio is numerous and the trees are hardy and have not 
been injured by the two applications already made, arsenate of 
lead may be added to the self-boiled lime-sulphur at the third 
spraying. 
For earlier varieties such as Carman and Hiley make two 
applications: 1st, when shucks are shedding, and 2d, about three 
weeks later. 
While the best results are secured by three applications, fairly 
good results may be secured from two. In this case, make first 
application as shucks are shedding, using the self-boiled lime- 
sulphur and arsenate of lead. Make second application four 
weeks later, using the same kind of mixture. 
The sample copy you sent arrived a few days ago and I must say 
that I am well pleased with it, as it is the very publication I have 
been looking for, to help me into line with the nursery business. 
M. R. Ingels, 
Idaho. 
THE SIMPLEX TREE BALER 
BALES IN 19 STATES PRICE, $ 16.00 
I offer a full line of Nursery Stock, Fruit and Shade 
Trees, Ornamental Trees, Shrubs, Roses, Peonies and 
Gladiolus, etc. Send for catalog. 
L. F. DINTELMANN Box 227 Belleville, Illinois 
BOX STRAPS 
WARD-DICKEY STEEL COMPANY 
Manufacturers of Planished Sheet Steel 
INDIANA HARBOR, IND. 
GRAPE VINES 
We offer for Fall and Spring delivery the largest and 
most complete stock of GRAPE VINES in strong grades for 
nurserymen and dealer’s trade. 
We also have an extra fine block of President Wilder cur¬ 
rants which have made a strong growth. 
SEND LIST OF YOUR WANTS FOR PRICES 
T. S HUBBARD COMPANY 
Established 1866 FREDONIA, N. Y. 
W E issue to members a Credit List with quarterly sup¬ 
plements. The list now contains between 7000 and 
8000 names. Membership fee $10.00, including privilege of 
obtaining unlimited number of ratings at cost. We also 
collect accounts at standard rates. 
National Florists’ Board of Trade, 56 Pine St., New York. 
Peach Tirees- 
amd Stffawlbeffffy PSa©t§ 
all leading market sorts for Fall 1910 and Spring 1911 
MYERS & SOM P MdgeviM©,, D©L 
The Southwestern Nursery Co. 
of OKEMAH, OKLAHOMA 
will have for late Fall and early Spring an exceptionally fine lot of 
ONE YEAR APPLE, PEACH, PLUM and BUDDED ROSES; 
TWO YEAR CALIFORNIA PRIVET, CAROLINA 
POPLARS, and CATALPA SPECIOSA. 
WE INVITE YOUR INSPECTION. 
Easterly Nursery Co., 
CLEVELAND, TENN. 
Offers for Spring Shipment: 
One, Two and Three-year Apple, Two-year Kieffer Pear, Two-year Sour Cherry, 
One-year Peach in car-load lots. A good assortment of Japan Plums, one-year and 
Mariana Stocks. Ask for prices. 
A BARGAIN 
UN o 1 AIN UAJK.U rtUAxvo. 
Extra size, 6 to 7 ft.; 1 
inch and up 5 to 6 ft.; 3-4 and up. Mostly Bartlett. 
Can also furnish a few of the leading varieties. 
It will be worth while to get our prices before buying elsewhere 
Address, 
PIONEER NURSERIES COMPANY, 
Salt Lake City, Utah. 
