62 THE BKOWX-TAIL MOTH. 



should be thoroughly applied to the leaves, particularly in 

 the i)art of the tree where the insects are feedinir. In cases 

 where trees cleared of the caterpillar webs stand near in- 

 fested trees, they may also be preserved from damage by 

 the miixrating caterpillars b}'^ a thorough spraying, as above 

 indicated. AVhere arsenate of lead cannot be obtained, 

 Paris green may be used, at the rate of 1 pound to 150 gal- 

 lons of water, keeping the mixture well agitated while 

 spraying. In the case of shade trees, this spraying should 

 ])e done as soon as the foliage develops ; and the same rule 

 holds good with fruit trees, where the insects are abundant. 

 If the trees are not badly infested, however, it is often de- 

 sirable to wait until after the blossoms have fallen before 

 si)raying, thus securing a double benefit by destroying the 

 cater})illars of the brown-tail moth, and also preventing 

 damage to the fruit by the codlinii: moth. 



AVhere neither the web destruction nor early spra3'ing 

 has been practised, it often occurs that the caterpillars, 

 nearly full grown, are found devastating the foliage of the 

 neglected trees. Where the insects are nearly mature, 

 spraying with arsenical poisons does not always give satis- 

 factory results, for the reason that a great many of the in- 

 sects disturbed by the spraying will pupate without feeding 

 longer. In such cases it is more satisfactory to prepare a quan- 

 tity of strong kerosene emulsion, then jar the caterpillars 

 from the trees by beating the latter with poles. The insects 

 tailing to the ground should be thoroughly drenched with 

 the kerosene emulsion, ai)j)lied eith(U' with a spraver or 

 from a watering-pot. Trees freed from the cateri)i liars in 

 this wav, and also non-infested trees standinj; near those on 

 whicii the caterpillars are feeding, may be easily preserved 

 from damage by ])anding them with some stick}^ material, 

 such as the German raui)enleim, or its American substitute, 

 bodliine, or even with tar or printer's ink. These materials, 

 |inip( rlv applied, form a sticky band over which the insects 

 cannot pass. 



