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Acarus (Erythrceus) tellarius, — The red spider. — 

 This pest of the gardener is very rarely found on the 

 peach-tree, and never will occur if the air of the house 

 is kept duly impregnated with watery vapour. Sul- 

 phur fumigations and a more free supply of atmos- 

 pheric moisture will speedily remove and continue to 

 exclude this insect. 



The red spider cannot thrive — scarcely exist — 

 where a sufficiency of water is regularly appHed. As, 

 however, syringing cannot be persisted in at all times, 

 something else is requisite at those periods, when the 

 syringe is laid by. Sulphur, then, is the best thing 

 at present known for this purpose; but as many 

 persons are deterred from the use of it, through a 

 fear of its pernicious effects, we will here detail our 

 mode of using it, by which we have been kept (we 

 might almost say entirely) free of this pest for the 

 last twelve years. We apply it about three or four 

 times in the course of the year, to each house ; the 

 houses are on the average about 30 feet long, by some 

 1 6 feet wide, and we use about six ounces to each 

 house each time, applied in the form of thick paint. 

 The houses are heated by hot water, and the sulphur- 

 paint is applied to the under or return pipe alone. 

 The best way is to beat a lump of soft-soap, as large 

 as a walnut, up in warm water ; and to add some clay- 

 water, made by working a lump of clay in warm water 

 until the water becomes a thin paint ; then to blend 



