1911. 
WHK RURAL* NEW-YORKER 
705 
CLEANING OUT WHITE GRUBS. 
G. B., Canada .—Is there any known 
method of destroying white grubs? They 
eat holes in the potatoes. 
Ans.— No, you cannot fight the grubs 
now in the soil with much effect. The 
life history of this insect covers three 
lime-sulphur will do the business we 
want to know it. From the evidence 
presented to us we have advised Bor¬ 
deaux for potatoes. We want to be sure 
before advising people to break their 
practice. We want all the facts and ex¬ 
perience we can get. 
years or more. When they are numer¬ 
ous it is practically impossible to fight 
them and at the same time raise a crop. 
Thorough culture and constant stirring 
of the soil will help destroy young grubs 
and prevent hatching, but the larger 
ones are hard to get at. Ordinary dress¬ 
ings of chemicals do not trouble them. 
Moles and skunks get many. One of the 
best ways for clearing out the insect is 
to turn in a drove of lively pigs. They 
will turn the soil all over, often, going 
two feet deep after the grubs. This is 
NICOTINE AS AN INSECTICIDE. 
The French grape growers have found 
that nicotine extracted from tobacco is most 
useful in fighting certain insects which de¬ 
stroy their vines. Two remedies have 
been found useful—spraying with arsenate 
of lead and spraying with nicotine. The 
latter is better since this substance evapo¬ 
rates and therefore will not permanently af¬ 
fect the fruit as the poison will. ‘The 
French are unable to obtain a sufficient 
quantity of nicotine for this purpose. In 
France the tobacco industry is a Govern¬ 
ment monoply and only a small proportion 
of the tobacco will be used for making this 
insecticide. Three or four times the quan¬ 
tity now available can be sold if it could 
be obtained. One remedy is to increase the 
production of tobacco very largely not only 
A BUNCH OF HIGHLAND STRAWBERRIES. Fig. 255. 
(See Ruralisms, page 707.) 
one of the best methods of fitting land 
for strawberries, as the pigs will clean 
the soil and work it thoroughly. We do 
not know of any way to clean out the 
grubs while a cultivated crop is grow¬ 
ing. 
How to Handle Hilled Strawberries. 
C. W. II., Massachusetts .—I have a bed 
of Clyde strawberries set out a year ago 
18 inches apart, in hills. All runners have 
been cut off and the plants are in fine con¬ 
dition. Will you tell me what to do with 
these plants after fruiting so they will be 
good for another year? They are set in 
good rich soil. Everyone who has seen 
the plants say they never saw better ones. 
I have been told to cut the tops off and 
cultivate between the rows so as to cover 
the crowns and that a new crown will form. 
Ans.— We have kept such plants going 
five years or more. In fact it would not 
pay to go the expense of setting them 
this way unless they are fruited at least 
three years. The plan you suggest is 
right. Cut the tops after fruiting, give 
good culture and keep the runners cut 
off. Hill up a little and use a fertilizer 
strong in potash and phosphoric acid. 
“Self-boiled” for Potato Blight. 
L. C. T.j Milton, N. Y .—I have watched 
in vain for some mention of the use of 
“self-boiled” lime-sulphur for potatoes in¬ 
stead of Bordeaux mixture, but so far no 
one seems to have advocated it. Three 
years ago when I first received a bulletin 
of Prof. Scott’s from the Department of 
Agriculture I became interested in this 
new fungicide, and after a little correspond¬ 
ence with the Department, decided to give 
up all idea of ever again using Bordeaux. 
This is my fourth season with “self-boiled” 
and I am entirely satisfied that I made a 
wise decision three years ago. I have used 
it, not only on all my fruit from straw¬ 
berries to apples, but also on my potatoes 
every year as a carrying medium for Paris 
green, but now for arsenate of lead, and 
am using it again this year. In spite of 
all the recommendations that I hear and 
read about the use of dilute solutions of 
commercial lime-sulphur as Summer sprays 
I do not like it and have given up its use 
entirely after the buds open. Why not try 
some self-boiled on your potatoes this year? 
Ans.— Thus far the records sent to us 
go to show that lime-sulphur is not equal 
to Bordeaux for spraying potatoes. We 
have no theory to prove either way. If 
for smoking and chewing, but for making 
nicotine. In fact it is suggested that to¬ 
bacco plants particularly strong in this 
substance can be developed much the same 
as sugar beets have been produced. It is 
also hoped that the tobacco manufacturers 
in the United States can use their waste 
tobacco to advantage in supplying the de¬ 
mand for nicotine. We have heard much 
about the use of this substance as an in¬ 
secticide. We understand that in this coun¬ 
try experiments are being made with it, in 
the hope of finding something besides poi¬ 
son that will be effective against the Cod¬ 
ling worm. Several parties are working 
on the theory that an offensive substance 
like oil or tobacco sprayed upon the apple 
trees at the proper time will repel the 
moth and prevent her from laying her eggs. 
No one appears to know definitely about 
this, but there is a genuine demand for 
some new way of fiahting the worm. 
r -\ 
In Summer— 
When the body needs 
but little food, that little 
should be appetizing and 
nourishing. 
Then about the best 
and most convenient thing 
one can have handy is a 
package of 
Post 
Toasties 
This food is fully cook¬ 
ed — crisp, delicious and 
ready to serve direct from 
the package. 
Post Toasties with fresh 
strawberries and cream 
are hard to beat. 
‘‘The Memory Lingers” 
Sold by Grocers. 
Postum Cereal Company, Limited, 
Battle Creek, Mich., U. S. A. 
___ ^ 
Showing plowed ground with rich subsoil unused 
Same ground after subsoil has been dynamited 
DOUBLE THE FERTILITY 
OF YOUR FARM 
By Breaking up the Rich Subsoil 
WITH 
CROSS DYNAMITE 
Ordinary plowing turns over the same shallow top-soil year 
after year, forming a hard and nearly impervious “plow sole” 
that limits the waterholding capacity of the laud and shuts out 
tons per acre of natural plant food. 
Dynamiting the subsoil makes this plant food available, aerates 
the soil, protects vegetation against both drouth and excess rain¬ 
fall, and soon repays its cost in saving of fertilizer expense 
and largely increased yields. 
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