Rules, Notes and Recipes 
175 
Compounding Manures. — Certain fertilizers ought not . to be 
mixed, unless they are to be used immediately, owing to their chemical 
reaction, as, for instance, basic slag with superphosphate, (also called 
acid phosphate) ; lime with super, soot, guano, sulphate of ammonia, 
basic slag, nor with any organic manures; nitrate of potash or nitrate 
of lime with superphosphate; sulphate of ammonia with lime, basic- 
slag, or nitrate of soda. The latter should not be mixed with super, 
or with sulphate of ammonia. Those that may safely be mixed are 
nitrate of soda, with guanos, basic slag, or raw bones; basic slag 
with sulphate of potash, kainit, or bones; sulphate of ammonia with 
superphosphate, bones, or phosphatic guanos. 
Cockroaclies. — There are no 
fewer than 5000 recorded species 
of cockroaches; the domestic spe- 
cies, however, are few. As a rule 
they are not able to withstand 
cold, being mainly natives of 
warm countries. The roach is one 
of the most primitive and ancient 
of insects, and has been carried 
to all quarters of the globe. The 
damage roaches do is not only in 
the products consumed, but in 
soiling and rendering nauseous 
everything with which they come 
in contact, and they leave a nasty 
“roachy” odor. Normally they 
are scavengers in habit, and may 
be at times of actual service. It 
has been stated that they feed 
sometimes on caterpillars and 
other soft bodied insects, and in 
that case are of benefit to the 
gardener. Roaches are somewhat 
easy to control. The use of pow- 
dered borax put about in their 
runs is very effective, or one part borax to three parts finely powderetl 
chocolate may be used. A dusting of comniercial sodium fluoric! is also 
employed, either pure or diluted, one-half with some inert substance 
Such as ])o\vdered flower of gypsum. With the use of some dust gun or 
blower the sodium can be thoroughly dusted over the slabs, tables, floors, 
runways or hiding places of the roaches. Other powders such as pyre- 
thrum and flowers of sulphur may be used, or sweetened dour jcaste, 
containing one to two per cent, of phosphorous, distributed on bits of 
paper or cardboard. 
Codling Moth Trap.— One of these has been devised by E. H. 
Siegler, of the Bureau of Entomology, il. S. Dejit. of Agriculture, to 
be used as a substitute for what is known as the “banding” method 
for destroying the codling moth. The banding method, in which a 
folded strip of burlap is wrapped around the tree trunk, demands a 
Codling Moth Trap 
