INSECTS DAMAGING ORANGE TREE. 127 



Cut away all diseased wood. Let the cutting be so 

 heavy that the tree will start strong shoots. Watch 

 these young shoots carefully, when the sun is 

 warm, for the bug resembling the squash-bug. 

 Kill all that make their appearance. If the extrem- 

 ities of the shoots have been stung, pinch them back. 

 They cannot be saved if the wood is very tender. 

 If blisters appear in the harder wood, puncture them 

 with a knife. It will relieve the wood, which will 

 readily heal, and the branch will soon recover its 

 vigor. 



The writer has allowed some trees to go almost 

 to the last extremity, and brought them out by fol- 

 lowing the above plan. 



The most effective insecticide known to the 

 author is kerosene and soap whale-oil soap being 

 preferable but if this is not convenient, common 

 washing-soap is effective combined in the propor- 

 tions of six pounds of soap to one gallon of kero- 

 sene. Bring the soap to a boil, pour in the kerosene 

 and stir thoroughly until the two are fully com- 

 bined. 



This preparation can be diluted with water to suit 

 the character of the insects to be exterminated. 



As an ordinary wash, forty gallons of water added 

 to the above preparation will leave the solution suf- 

 ficiently strong. 



For the red scale insect not more than twenty 

 gallons of water should be added. 



Some prefer an emulsion of kerosene and milk 

 diluted with water. 



