234 INSECTS, DISEASES AND OTHER PESTS 



therefore, it is necessary to be constantly on the watch and 

 to act on the adage, " Prevention is better than cure." 

 Fumigate the house at intervals of a week or ten days with 

 any of the well recognized nicotine fumigants that are 

 on the market, or spray with any of the nicotine solutions 

 several days in succession, then skip a day and continue 

 again for two days and thereafter fumigate or syringe 

 at regular intervals until every trace of them has van- 

 ished. 



In the case of red spider, which gains headway some- 

 times in Winter when the houses have to be kept closed, 

 with the heat up, spray the plants with a salt water solu- 

 tion, half an ounce of salt to a gallon of water; this to be 

 done as often as necessary until the pest is got rid of, and 

 thereafter once in three weeks. By means of forceful 

 syringing through the hose the plants, as a rule, can be kept 

 free of red spider. As an alternative to the salt spray, use 

 a sulphur spray or dust the plants with sulphur; the salt, 

 however, is preferable. 



In the case of thrips, the same methods applied for the 

 prevention or eradication of aphis holds good, or a sweetened 

 poison spray consisting of two pounds of brown sugar to 

 two tablespoonfuls of Paris green in three gallons of water 

 may be tried. Another method is to use one ounce of whale 

 oil soap in a gallon of water. Badly injured tops should 

 be pinched out and destroyed. 



The Rose beetle and chafer may be combated either 

 by syringing or hand picking, or by spraying with arsenate 

 of lead, which may be had in the form of a paste and can 

 be used according to directions on the package. You can- 

 not begin to have success until the plants are clean and 

 healthy and kept so. 



