. Annual report of the Commissioner of Agriculture ... Agriculture -- New York (State). vo BuKEAU OF Farmers' Fig. 1 Sugar maple borer, parent beetle (orlglual). direction for a part of their course, it is by no means uncommon to see trees partly girdled through the activity of this borer. I have seen maples fifteen and eighteen inches in diameter half girdled by a single burrow. It is ap- parent to all that only a few such borers are necessary to cause con- siderable injury. The beautiful par- ent beetle, represented at figure 1, is rarely seen, but evidences of the in- sect's wo
. Annual report of the Commissioner of Agriculture ... Agriculture -- New York (State). vo BuKEAU OF Farmers' Fig. 1 Sugar maple borer, parent beetle (orlglual). direction for a part of their course, it is by no means uncommon to see trees partly girdled through the activity of this borer. I have seen maples fifteen and eighteen inches in diameter half girdled by a single burrow. It is ap- parent to all that only a few such borers are necessary to cause con- siderable injury. The beautiful par- ent beetle, represented at figure 1, is rarely seen, but evidences of the in- sect's work are very apparent. The large, white, fleshy grub or borer is not often observed. It is a most in- sidious worker and probably the best method of controlling it on shade trees is to search each fall for the dis- colored, wounded areas, showing the place where the young larvae have entered the bark, and then to destroy the pests. There is little danger of harming the tree more by digging the borer out than the creature would if left to itself. The young borers fre- quently enter the tree at favorable points on the trunk and branches just as the larger limbs spring out from the main stem. Applications of the soap carbolic acid wash about the middle of Ma}', and renewal of the same in June, would probably aid somewhat in preventing the deposition of eggs, though at present it is impossible to state the true value of this preventive. Elm Tjorer.—American elms are frequently attacked by a borer working beneath the bark. There is no practical method of flght-. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original New York (State). Dept. of Agriculture; New York State Agricultural Experiment Station; Cornell University. Agricultural Experiment Station. Albany : State of New York, Dept. of Agriculture
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