The Bulletin. 23 



10th, but picking in the same fields (the variety was Thompson) was 

 finished by May 20th to 25th. Here, then, was a space of two weeks 

 when the Aveevils were developing in the fields, but when the plants 

 themselves had finished their usefulness for the year. A burning over 

 of the fields immediately after the last picking would certainly have 

 destroyed many of the weevils, and if not too severe, would not hurt 

 the plants. Growers who have done this have testified to the benefits. 

 As a matter both of precaution and economy, part of the pine straw 

 may be raked up and saved, the rest distributed evenly and burned. 

 Mowing the tops before burning would make it easier, and if anything 

 less dangerous to the plants. 



Ditch banks and borders of berry fields which are overgrown with 

 blackberries, dewberries, etc., should be kept burned off. The two most 

 appropriate times for this would be about April 1st and June 10th, 

 i. e., just when the weevils begin to enter and as the next brood are 

 leaving. 



The cleaner the methods of cultivation the better. 



An old field, picked for its last time, if it has been heavily infested 

 with weevil, should be burned over, the more severely the better, and 

 then plowed deeply, thus preventing the maturing of the weevils from 

 the fallen buds. Cooperative effort among the growers of a community, 

 all following the same remedial measures, will naturally be expected 

 to give better results than when one acts alone. Yet here, as in most 

 other problems, self-help is the first and most important requirement. 



JSTo method of spraying has yet been devised which will control the 

 weevil satisfactorily, but spraying with arsenate of lead in Bordeaux 

 mixture would certainly help against slight injury by Root-worms, 

 Saw-flies, Leaf-rollers, and Caterpillars, and might lessen Weevil in- 

 jury to some extent ; also it will afford much protection against fun- 

 gous diseases. Four pounds of arsenate of lead to a barrel of Bordeaux 

 mixture is the strength we would recommend, making two applications : 

 first, when leaves are out in spring, but before blooming; second, just 

 after last picking. This last would not be needed if the fields are to be 

 burned over. 



FORMULA AND DIRECTIONS FOR POISONED BORDEAUX MIXTURE. 



Stone lime (unslaked) 4 pounds 



Bluestone 3 pounds 



Arsenate of lead 4 pounds 



Water 50 gallons 



Put the bluestone in a cloth and hang it in a tub or keg of water so 

 that it is just below the surface. In this way it will dissolve much 

 more rapidly than if thrown in so that it sinks to the bottom. Warm 

 or hot water will dissolve it much more rapidly than cold. Put this to 

 ■dissolve the evening before it is intended to spray and it will be dis- 



