44 GYPSY AND BROWN-TAIL MOTHS. [Jan. 



quantity is used it is simply a waste of money. There is no 

 method used in fighting the moths where money can be wasted 

 as easily as in spraying, especially with large machines, if care 

 and judgment are not used. Care should be taken to order 

 the necessary supplies for spraying before the season opens, so 

 that when the foliage appears the machine can be put in opera- 

 tion in the field at once. Of course it is a well-known fact that 

 early spraying, as soon as the foliage is large enough to hold 

 the spray, is sure to be the most effective, as the caterpillars 

 are then small and most susceptible to the poison. In several 

 towns where the infestation warranted the use of a large ma- 

 chine it was somewhat doubtful whether such a machine could 

 be used, on account of its weight. We have had several cases' 

 cited where it was impossible for two horses to draw the ma- 

 chine when loaded. The large area covered by these machines 

 must be taken into consideration, and if an extra pair of horses 

 should be used half the time during the spraying season, the 

 additional cost would not amount to more than $75. It may 

 also be expensive to get water if the town does not have hydrant 

 service; but this is very easily overcome by the man in charge 

 exercising good judgment, and building his roads so that he 

 may locate the machine as often as possible near water supplies. 



Another important matter to consider in using large appara- 

 tus is the hose. Where long lines are used it necessarily in- 

 volves considerable expense, and proper care should be taken 

 of the hose, in order that it may last as long as possible. It 

 has been our experience that woven marline-covered hose is 

 more economical than ordinary rubber or cotton hose, as it 

 does not kink easily, thus avoiding breaks. It is also neces- 

 sary that long-tailed two-bead couplings be used, so that they 

 will not blow out under high pressure. Where woodland spray- 

 ing is to be done, it is economy to purchase 1,000 feet of lead 

 hose and 100 feet of suction hose. Brass fire nozzles with 

 extra interchangeable tips, one ^4 inch and one %e inch, are 

 generally used. 



A greater number of power sprayers will be in operation in 

 the field the coming season than the past. In all probability 

 there will be fifty new large machines engaged in the work, and 

 with the good work accomplished by this new apparatus it is 

 believed that better results will be obtained, and next fall, 



