CHAPTER VI 
INSECTS AND DISEASES 
The insects that trouble vines — Their destruction — San Jose scale — 
Lime and sulphur — Oil emulsions — Fumigation — Tender insects and 
their poisons — Caterpillars — Enemies of fruit and vegetable vines — 
Diseases and how to treat them — Rust — Bordeaux mixture — Blight -—- 
Copper carbonate — Mildew — Sulphur — Rot. 
Most members of the vine family, being rank 
growers, are not troubled to the extent that other 
plants are by insects and diseases. ‘The only 
exception to this rule isthe climbing rose; this is 
liable to nearly all the diseases that bother plants, 
although our troubles in this direction can be 
greatly lightened by the use of a little precaution. 
Treat the plants before the enemies appear in 
force, use your judgment, look over the plants 
occasionally, and remember the old saying that 
‘‘an ounce of prevention is worth a pound of cure.” 
As with all plants, the injurious insects that 
attack vines can be divided into two general 
classes. The first includes those which eat, and 
therefore injure the tissues by chewing and biting. 
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