200 



APPENDIX. 



one ; and on the succeeding morning, after having been re- 

 moved as before, there were one hundred where there were 

 but ten, and so on. I was not discouraged, however, and 

 directed my men to persevere in the work of destruction, 

 and we should thus perhaps prevent the formation of an- 

 other progeny for the next season, for it is very easily shown 

 that they do not migrate to any great distance ; and by thus 

 destroying the present race, I am convinced that we insure 

 ourselves from their further depredations to any injurious 

 extent. When a person of some energy has cleared them 

 from his vineyard or garden, he is pretty certain to enjoy the 

 benefit of his labor another season as well as the present, 

 though he may have a few from his less resolute neighbor. 

 Pursuing the course I have mentioned, I very soon lessened 

 the rosebug so much that they gave me very little trouble. 



I also tried ploughing my vineyards just before winter set 

 in, so as to expose to the weather the insect in the larva 

 state, which will certainly destroy all the young tribe that 

 have not descended below the reach of the plough. For 

 two years past, the number has been so small, that I have 

 omitted this process for their destruction. 



However expedient it may be to kill the rosebugs, even 

 by treading on them, the substitution of spirits of turpen- 

 tine, instead of water, is undoubtedly a much better mode, 

 and is obtaining more general practice. When used, the 

 rosebugs will not be half as numerous the next, as the pre- 

 ceding season, and the third year there will be comparative- 

 ly none, and scarce a berry will be injured. 



In speaking of the failure in the successful cultivation of 

 the grape, Dr. Underbill uses the following language : 



Another cause of failure has been a want of practical ex- 

 perience in the best mode of preparing the ground, planting 

 the vines, pruning, &c., so as to insure a vigorous growth 

 of bearing wood, and keep this from extending too far from 

 the roots of the vines, when planted with the desire of form- 

 ing a vineyard. The European method of pruning and 

 cultivating the grape is not altogether correct. The natural 

 vigor of our native vines is much greater than the foreign, 



