McIntosh as infesting the cabbage fields of
England; also three species of fungi known as white rust, mildew, and
_cylindrosporium concentricum_; these last are destroyed by the
sprinkling of air-slaked lime on the leaves. In this country, along the
sea coast of the northern section, in open-ground cultivation, there is
comparatively but little injury done by these marauders, which are the
cause of so much annoyance and loss to our English cousins.

THE GREEN WORM.

A new and troublesome enemy to the cabbage tribe which has made its
appearance within a few years, and spread rapidly over a large section
of the country, is a green worm, _Anthomia brassicae_. This pest infests
the cabbage tribe at all stages of its growth; it is believed to have
been introduced into this country from Europe, by the way of Canada,
where it was probably brought in a lot of cabbage. It is the caterpillar
of a white butterfly with black spots on its wings. In Europe, this
butterfly is preyed on by two or more parasites, which keep it somewhat
in check; but its remarkably rapid increase in this country, causing a
wail of lamentation to rise in a single season from the cabbage growers
over areas of tens of thousands of square miles, proved that when it
first appeared it had reached this country without its attendant
parasites.

Besides this green worm, there are found in Europe four varieties of
caterpillar variously marked, the caterpillars from all of which make
great havoc among the cabbage tribe.

The most effective destroyer of this, and about every other insect pest,
is what is known as the "Kerosene Emulsion." This is made by churning
common kerosene with milk or soap until it is diffused through the
liquid.

Take one quart of kerosene oil and pour it into a pint of hot water in
which an ounce of common soap has been dissolved; churn this briskly
while hot (a force pump is excellent for this), and, when well mixed,
which will be in a few minutes, it will be of a creamy consistency; mix
one quart to ten or twelve of cold water, and spray or sprinkle it over
the plants with a force-pump syringe or a whisk broom.

Another remedy is pyrethrum. Use that which is fresh; either blowing it
on in a dry state with a bellows, wherever the worm appears, or using it
diluted, at the rate of a tablespoonful to two gallons of water;
applying as with the kerosene emulsion. Mr. A. S. Fuller, who is good
authority on garden matters, succeeds