WHITE CABBAGE BUTTERFLIES. OAT | 
Besides lime, we have notes (with ourselves) of soot being useful, 
and likewise sulphur; and, in my own practice, I have found gas- 
lime which had lain eaposed for eight months (that is, from the previous 
November to about the 20th of July in the following year) answer 
very well. On the occasion observed, the ‘‘ Whites” were remarkably 
plentiful in my own garden, and especially (after watering) on the 
Cabbage bed. I had most of the infested plants removed, and the 
surface of the bed, as well as the remaining Cabbages, dressed with 
about half a cart-load of the well-exposed gas-ime. On the following 
day the White Butterflies were very few in number on the bed, though 
numerous elsewhere in the garden; and so long as I continued ob- 
servation, the ‘‘ Whites” hardly settled on the gas-limed bed, and the 
caterpillar attack was well checked. 
Looking at the nature of the dressings which have been practically 
found to answer fairly, namely lime, gas-lime, soot, and sulphur, it 
will be observed that they are all powder dressings, which would, if 
thrown when the leafage is damp, adhere very thoroughly to the upper 
surface of the leaves, and also, from the quantity which would fly 
about, would adhere to some extent to their lower surfaces, and also 
would act more or less beneficially to the plants.* 
The above, taken in connection with the thoroughly serviceable 
nature of the mixture known as Fisher Hobbs’s mixture, which is 
composed of the four above-named ingredients, suggests that a union 
of them in one application, and given broadcast as for Turnip Fly, 
might do all that is needed. The exact recipe is,—one bushel of gas- 
lime, fresh, one bushel of lime, also fresh, ten pounds of soot, and six 
pounds of sulphur, well powdered, and thoroughly mixed, and applied 
when the plants are damp, as early in the morning when the dew is 
on. The above amount is sufficient to dress two acres of young 
Turnip plants when drilled at twenty-seven inches, and in this case 
may be distributed by a broadcast machine, or by hand. With a 
Cabbage crop advancing towards full growth, a larger quantity would 
be needed, and likewise hand distribution, in order more especially to 
drop or throw it on to the Cabbage where, as in the case of the 
caterpillars of the ‘‘Green-veined White,” they may be more especially 
found towards September, feeding, like the caterpillar of the Cabbage 
Moth, on the central leaves. 
employed.’ But though this is obviously true, and in time probably we shall ad- 
vance to using the arsenites here for field insecticides just as they have advanced 
in the U.S.A., yet at present I could not take on myself the responsibility of 
advising the above treatment, more especially as the feeling against it might pro- 
bably ruin sale of the Cabbage. 
* In the small quantity used, I am not aware whether the flour of sulphur 
would have any special effect in broadscale application. 
