10 
SLUG-LEECH. 
White hellebore powder has been found effective, but I believe 
the caustic-potash solution would be even more beneficial. 
LEAF-FUNGI. 
I believe solutions of permanganate of potash would be found 
effective with nearly all fungoid pests attacking the leaves. 1 hope to 
carry out a series of experiments in this direction during the coming 
spring. Dusting the leaves affected with fungi with sublimed 
sulphur or with Goodhue’s mixture will be found productive of good 
results. 
Root-FuNnevs. 
In addition to tar-water, I have to suggest the following experi- 
ments with a view of eradicating this pest: (1.) Top-dressing of lime, 
at the rate of 12 bushels to the acre, to be dug in and well mixed with 
the soil. (2.) The same, with the addition of 1 1b. of sulphur to each 
bushel of lime.  (8.) Top-dressing of soot, at the rate of 10 bushels 
to the acre. (4.) Top-dressing of salt, at the rate of 3 cwt. to the 
acre, applied in the autumn. 
Mr. Goodhue’s mixture applied in the dry state is destructive to 
the chermes infesting pines, and to many other insects, as well as to 
the black blight of the lemon. If prepared for market and placed 
before the public in a convenient form, it would doubtless meet with 
ready sale, as it is an insecticide of considerable value, and easy of 
application. 
es 
With one important exception—the use of blight-resisting stocks 
for the apple—the cultivation of plants possessing properties which 
render them distasteful or even poisonous to certain insects, has not 
received the attention it deserves, although it opens a field rich with 
promise. A few instances may be mentioned here. The common 
garden nasturium, planted amongst apples, and-allowed to ascend their 
trunks, is a preservative against American blight ; white mustard sown 
amongst turnips protects them from the attacks of wire-worm; the 
beetle of the grass-grub, under certain conditions, feeds on the castor- 
oil plant with suicidal results; the cabbage-aphis is repelled by the 
tomato ; Isatis tinctoria, the ancient woad, protects root-crops from 
attacks of the larve of various beetles; and itis stated that the common 
flax (Zi usitatisstimum) grown amongst potatoes will avert the 
attacks of the Colorado beetle. 
Facts of this kind demonstrate one class of the advantages that 
might be obtained from an experimental garden under competent 
supervision. 
