Economic entomology for the farmer Economic entomology for the farmer and fruit-grower economicentomolo01smit Year: 1906 THE INSECT WORLD. 397 safe from it. Sugar is especially attractive, but almost anything is attacked, nothing more readily than a bone from which the meat has been roughly scraped, and which is yet a little bloody. It seems impossible to get rid of these creatures, because they avoid poisoned food and anything that has the appearance of a trap. A few specimens Fig. 452. may be killed, but very soon the character of the mixture is recognized, and it is left untouched. ' In
Economic entomology for the farmer Economic entomology for the farmer and fruit-grower economicentomolo01smit Year: 1906 THE INSECT WORLD. 397 safe from it. Sugar is especially attractive, but almost anything is attacked, nothing more readily than a bone from which the meat has been roughly scraped, and which is yet a little bloody. It seems impossible to get rid of these creatures, because they avoid poisoned food and anything that has the appearance of a trap. A few specimens Fig. 452. may be killed, but very soon the character of the mixture is recognized, and it is left untouched. ' Insect-powder' — pyrethrum —is effective, but it is practically impossible to get it everywhere, and the ants simply avoid it. Carbolic acid and naphthalene are both useful as repellents : the insects dislike the odors intensely, and will not approach these materials ; but while certain closets may Monomorium pharaotiis. be protected in that way, the odors are not particularly desirable near food products, and are as repugnant to many persons as they can possibly be to the ants them- selves. The simplest method, perhaps, is mechanical destruc- tion, as follows : Where meat is used every day, the bones, or some of them, should be cut out before it is cooked and placed in a main line of insect travel. When they become thoroughly covered with hundreds or even thousands of ants, the whole mass should be thrown into the fire. If this process is repeated two or three times a day, a few days in succession, the ants seem to be seized with a panic, and usually abandon the house com- pletely. Instead of bones, a sponge dipped in sugar water and loosely pressed out may be used ; or, better yet, there should be two sponges. The sweetened one should be placed where the ants run, and the news of its presence will spread throughout the entire house in a remarkably short time. When the first sponge is entirely filled with ants, the second should be prepared in the same way to replace the fir
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