Discussion on Mr. Earle's Paper. 53 



Dr. McKay, of Mississippi — We have not been seriously trou- 

 bled with rust. The plants of a few varieties have suffered, but I 

 have noticed no damage to the fruit. I have checked it in some 

 instances by the use of salt. In another case kainit stopped it 

 quicker than salt, but we have not experimented much, 



F. 8. Earle — How do you apply salt without injury to the plants? 



Dr. McKay — We are careful to not let it come in contact with 

 the foliage of the plants. 



3Ir. Augur — Have you jtried lime mixed with sulphur? 



F. S. Earle — No; have experimented but little, as stated above. 



Mr. Smith, of Wisconsin — Don't rust appear most on weak plants 

 or over-cropped areas? 



F. 8. Earle — No ; rankest ones most attacked. This is true of 

 most varieties. 



Mr. Smith — Have you noticed plants to die after heavy crops? 



F. 8. Earle — Have not. Our plants are cautious about over- 

 bearing. 



Mr. Caywood — Our plan is to apply a teaspoonful of sulphur 

 under each plant. It keeps grubs away and the plants healthy. 

 Have had no rust on plants thus treated. 



F. S. Earle — The white rust is more general, and more injurious 

 on that account. But when black rust attacks it is the most fatal. 



Mr. Roe, of Wisconsin — Rust first appeared in Wisconsin during 

 the wet summer of 1883. The Wilson, Bidwell and, I think, the 

 Crescent, were first attacked. Manchester suffered no more than 

 Wilson. A worse difficulty with us is the leaf roller. 



Mr. Hollister, of Missouri — When plants die after full crops it 

 indicates a need of in vigo ration. 



Mr. Smith — I can tell, no matter what the weather is, whether a 

 heavily cropped bed will live or not. If the leaves lop down, no 

 new runners formed, no new leaves, no strength in the leaf stem, 

 we know at once it will not pay to keep them. Heavy bearing is 

 certainlv a prolific cause of rust. 



F. S. Earle — We see the confusion resulting from the use of pop- 

 ular names ; I spoke specially of white rust. You are probably too 

 far north to suffer from the latter in Wisconsin. 



