. The Canadian horticulturist [monthly], 1889. Gardening; Canadian periodicals. and three to another, in the month of June. The former tree was not injured in the least, while the bark of the latter was destroyed in several places. From this it is evident that when diluted no injury need be feared. The Borer is much more trouble- some in our orchards than we like to admit. We find that where trees are situated on unfavorable soil, or are for any other reason somewhat stunted in growth, the borer is espe- cially destructive, and treatment should not be neglected. A good preventive is made as fo
. The Canadian horticulturist [monthly], 1889. Gardening; Canadian periodicals. and three to another, in the month of June. The former tree was not injured in the least, while the bark of the latter was destroyed in several places. From this it is evident that when diluted no injury need be feared. The Borer is much more trouble- some in our orchards than we like to admit. We find that where trees are situated on unfavorable soil, or are for any other reason somewhat stunted in growth, the borer is espe- cially destructive, and treatment should not be neglected. A good preventive is made as follows: One pint crude carbolic acid, one quart soft soap and two gallons hot water. Thoroughly mix and apply with a cloth to trunk and large branches, two weeks after blossoms fall, and again three weeks later. Another, recommended by Prof. Saunders, is simply soft soap reduced to the con- sistency of a thick paint b)' the addition of a thick solution of wash- ing soda in water. Apply in the morning of a warm day, and it will soon dry, and not be easily dissolved by the rains. The treatment should be given early in June, and again during the early part of July. There are two kinds of apple tree borers—the round-headed, and the tiat-headed, the latter of which we described in vol. xi., p. 147. The former is known scien- tificall)' as Sapcrda Cn ii- (fidn, and was first notic- ed as destructive to our apple orchards in the vi- cinit}- of Alban)-, New York State, in the year 1825. Our readers may be able to recognize the full grown c beetle from fig. 46-c, which is about three quarters of an inch long, and pale brown on the back, with cream-colored stripes. While the flat-headed borer deposits its eggs very often on the upper side of the large branches, this one chooses only the trunk, near the sur- face of the ground, and usually upon the south or south-west side. These are laid singly during those months, and hatch out within a fortnight into a whitish larva, with a chestnut b
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