. Economic entomology for the farmer and fruit-grower. Beneficial insects. l8o AN ECONOMIC ENTOMOLOGY. woollens. For this household pest a liberal use of napthaline in crystals or balls, in trunks and closets, is advisable as a pre- ventive. Where woollen garments are to be stored through the summer they should be first thoroughly beateA or brushed and sunned out, then wrapped in stout paper with the edges pasted, or in cotton sheeting well sewed. Then, if laid away in boxes or trunks, or hung in closets with napthaline crystals between the layers, or on the shelves, or among the bundles, litt
. Economic entomology for the farmer and fruit-grower. Beneficial insects. l8o AN ECONOMIC ENTOMOLOGY. woollens. For this household pest a liberal use of napthaline in crystals or balls, in trunks and closets, is advisable as a pre- ventive. Where woollen garments are to be stored through the summer they should be first thoroughly beateA or brushed and sunned out, then wrapped in stout paper with the edges pasted, or in cotton sheeting well sewed. Then, if laid away in boxes or trunks, or hung in closets with napthaline crystals between the layers, or on the shelves, or among the bundles, little danger is to be feared. Where carpets are infested, it is best to have them taken up, thoroughly beaten and cleaned, and the floors thoroughly cleansed before they are relaid. Where this is undesirable for any reason, gasoline may be used with satisfactory results. Except on the cheapest fabrics it may be safely used in liberal quantities without danger of injuring either texture or colors, and wherever the liquid comes into contact with either beetle or larva it kills at once. Eggs, however, are not destroyed, and close watch must be kept for a week at least, when a second appHcation may be found necessary to reach the larvae hatched since the first was made. Another method, almost equally good but more troublesome, is to place a wet cloth over the infested patches and press over it with a very hot flat-iron, the object being to drive hot steam or vapor through the fabric and thus, practically, to cook the insects. In collec- tions, tight boxes or cases and a free use of napthaline or bisulphide of carbon, or both, are essential. Unity of habit in this family is marred by Bytiirus unicolor, a little yellowish species which is densely covered with short silky hair, and feeds in the blossoms of the red rasp- PjG. 159. berry, where also its eggs are laid. The larvae are white, nearly naked, and are found on the inside of the berry when picked. The species has not become seriou
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