ECONOMIC VALUE OF FUMIGATION 225 



pletely control the spider it is necessary to use water 

 under pressure. Dr. ALBERT F. WOODS, United 

 States Department of Agriculture. 



Olive trees fumigated. In more than a score of 

 instances in Southern California olive trees have been 

 fumigated with the most satisfactory results. Trees 

 which had not borne fruit for several years, after an 

 application of fumigation, bore very heavy crops. 

 The olive trees had been affected by black scale and 

 smut which was totally destroyed by the application 

 of fumigation. Peaches, apricots, plums, apples, and 

 pears fumigated have brought large crops and superior 

 fruit, not alone in flavor but also in size. Deciduous 

 trees must be fumigated while they are dormant before 

 the fruit buds or leaf buds begin to unfold or after the 

 ripe fruit has been taken from the trees. This, in 

 fact, we consider the best time to fumigate. It is a 

 serious blunder to neglect to avail one's self of the 

 advantages of fumigation in the belief that it is an 

 expensive operation. Quite the contrary is the case. 

 It makes but a small part of the orchardists' expense 

 while the benefits ramify in every direction. The 

 Rural Calif ornian. 



Fumigation understood and appreciated. A fumi- 

 gated tree conserves its energy and produces clean 

 fruit, having a brighter color and a better flavor than, 

 fruit which has gone through the process of washing 

 and cleansing, and brings from 20 to 25 per cent, more 

 in price in the market. The washing of oranges and 

 lemons to remove black, purple, or red scale often 

 breaks the skin and spoils the appearance and flavor of 



