128 DESTRUCTIVE INSECTS OF VICTORIA I 



24. CLACK'S INSECT SOAP. I have not Had sufficient 

 experience with this soap as yet, but should judge it to be 

 somewhat similar to the Norris Soap. Further experi- 

 ments may, however, prove its worth or otherwise. C. F. 



25. MAGIC SOAP. This soap, a new invention, has 

 been tried with success upon the peach aphis ; pro- 

 portion, 1 Ib. to 8 gallons of water, and sprayed on to 

 the tree whilst hot. In spraying the young shoots of any 

 kind (but peaches especially) great care must be taken 

 that the material used is not hot or strong, otherwise the 

 leaves shrivel and turn black. C. F. 



26. NORRIS' INSECT SOAP. The results obtained from 

 the use of this soap were something similar to those of the 

 former (Magic Soap). (7. F. 



27. SODA CAUSTIC. Strongly recommended by many 

 persons. It injures the tree, but does not kill the eggs. 

 Maskell. If used with resin and fish-oil, very efficacious 

 in dealing with scale and other insects. C. F. 



28. SODA (SILICATE). Kills some insects, but injures 

 the tree. Hubbard. 



29. SULPHATE OF IRON. A common ingredient of im- 

 potent remedies, most injurious to vegetation. Hubbard. 

 If used in weak solution it is perfectly safe, and for many 

 insects particularly those below ground it is an in- 

 valuable remedy. (7. F. 



30. SULPHUR. One of the oldest and most valuable of 

 insecticides and fungicides at present in use. Of great 

 value against red spider, phytoptus, &c., and has recently 

 been successfully tried for the purpose of preventing 

 winged locusts from settling upon and destroying fruit 

 trees. Of no use against scale and like hardy insects. 

 The lump sulphur, if crushed, is better for use than the 

 ordinary " flowers of sulphur." C. F. 



31. TOBACCO. An invaluable indoor remedy against 

 aphis, thrips, &c., also, if strong, on mealy bug. It can 

 be used either in solution or for fumigation, the latter 

 mostly for plants growing under glass. Can be obtained 

 cheaply from any wholesale tobacco merchant or from 

 factories. C. F. 



