56 



Four Allies of the Winter Moth. 



fruit. In America Paris Green is regularly and most advan- 

 .tageously used, even when the apples are of some size. 



Quassia and soft soap solutions may be used at any time, 

 inot being poisonous. These do not poison the caterpillars, 

 they merely make their food bitter and distasteful. They are 

 put on usually in the proportion of J lbs. of quassia chips and 

 6 lbs. of soft soap to loo gallons of water. Some growers use 

 a much stronger quassia wash than this. 



Spraying is the only really useful remedy for these cater- 

 jpillars, and it must be repeated from time to time. 



