2. Wrapping. — When one has only a few trees, such as fruit or shade trees, the most satisfactory method is to wrap them. An ordinary tree veneer which is made of very thin wood may be purchased from any seed store or nursery company. This fits closely about the body of the tree, and will enlarge as the tree grows. However, during the summer it may offer a harbor for injurious insects, and should remain on the tree only during the winter. Trees may be wrapped with burlap, corn-stalks, or ordinary lath. The only caution with any of these is to remove them when the tree resumes growth in the spring. Ordinary wire screen answers very well as a protection for the tree.
3. Repellents. — The tree may be covered as far as the rabbit can reach with blood. The entrails and blood of the rabbit itself rubbed over the tree is quite effective, but is very apt to be washed off by rain.
A concoction of tallow and tobacco smeared on to the trees acts as a repellent. However, where there are a great many trees, and especially small trees, such as honey locust, elm, and others, used as windbreaks, it is out of the question to treat each individual tree by hand. In this case, a spray applied by a hand pump will be found effective. The common lime and sulfur spray used to destroy the San Jose scale has been recommended, and can be applied with an ordinary spray pump. Mix together dry, fresh hydrated or ground lime, 4 pounds; powdered sulfur, 3 pounds. Add water to form a thin paste, and boil from one-half to one hour, or until the mixture becomes a reddish amber color. Dilute to 10 gallons, spray on to the trees while the liquid is still warm. This spray is excellent for the trees as well, but must not be applied to the trees while they are in leaf.
Commercial aloes at the rate of one pound to four gallons of water sprayed on to the trees gives the bark and leaves a bitter taste which repels rabbits.
A spray made of buttermilk and common stove soot has proven quite satisfactory here. Buttermilk, 1 gallon; common stove soot, 1/2 pound. Boil for twenty minutes. Keep well stirred to prevent clogging the pump.
4. Poisoning. — Much may be done in eradicating this pest with poison. The " Wellhouse " poison is made as follows: Sulfate of strychnine, 1 part; borax, 1/3 part; white syrup, 1 part; water, 10 parts. Put the mixture into a jug or large bottle, and shake well. Cut fresh twigs — apple water sprouts are best — and with a small brush paint them, especially over the terminal bud, with the above preparation. Scatter the twigs in the runways and about the trees where the rabbits feed. Stock or fowls will not molest this poison, and it is said that dogs may eat the dead rabbits and suffer no ill effects.
The Western Australia Department of Agriculture recommends a similar poison. Dissolve 11/2 ounces strychnine in 1 quart of vinegar; dilute with 5 gallons of water; add 2 pounds of flour and 1 pound of sugar; stir well and apply to twigs as recommended above.
A jam made of fruit and sugar is readily eaten by the rabbits. Chop apples or melons into small cubes. Add sugar equal to one-half the weight of the fruit. Boil until the mass forms a thick jam. Add strychnine, either powdered or dissolved, at the rate of 1 ounce to 25 pounds of the jam, and mix thoroughly.
1. Pare and clean the wound, and cover it thickly with fresh cow-dung, or soft clay, and bind it up thoroughly with a cloth. Grafting-wax bound on is also good. Complete girdling, when done late in spring - when settled weather is approaching — can be remedied in this way.
2. Insert long scions over the wound, by paring them thin on both ends, and placing one end under the bark on the upper edge of the wound and the other under the bark on the lower edge. Wax thoroughly the points of union, and tie a cloth band tightly about the trees over both extremities of the scions.