Excerpt from Some Injurious Insects of Maryland

In a few localities the Old plan of bandaging or encircling the trunks of the trees with paper or rag bandages was systematically carried on, with the result of greatly reducing the proportion of wormy fruit, as the larvae are very fond of spinning up in the shelter afforded by such ban dages, and where these are systematically removed every two weeks and scalded, (or in the case of paper bandages burned) this method of check ing the injury of the insect is well worth adopting. The efforts Of the State Horticultural Societies of Michigan, Illinois and Kansas in the use of these bandages were particularly productive of good results, as there was co-operation. At the present time, however, this method has been almost entirely superseded by one which is, on the whole, better and simpler, viz: spraying with arsenical poisons. The use Of arsenical poisons against this insect practically dates from 1878, though they had been employed on apple trees as early as 1872, against Canker Worms. It was in fact, their use against Canker Worms that led to \the discovery that they were available as preventives of the Apple Worm. They are now very generally employed among the most advanced apple growers of the North and West, especially where a sufficient number of trees is grown to justify providing the proper machinery. This method is not confined to the United States, but has been introduced with profit into New Zealand, Australia and Tasmania, where the insect prevails as it does with us. Spraying with arsenicals was longer in making its way in Europe, but even in England and in parts of the continent apple growers are beginning to appreciate its value, though prejudiced against the use of poisons. Many of our apple growers, particularly in the South, have so far failed to appreciate its importance, and this is to a large extent true of the State of Maryland.

As some Of our orchardists may yet fancy that the time and means required to spray effectively are wasted, let me quote a single instance of the value of spraying from a correspondent in the vicinity who is an ex tensive grower, and then give briefly some of the best and latest methods.

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