158 



Six or eight pounds of lime to 50 gallons without in- 

 creasing the bulk of the solution. 



CJuest. Is the homemade lime-sulfur wash equally good 

 as the -commercial, 



Yes ; if you care to prepare it. 



Mr. Knapp : How long should it be boiled ? 



Boil from at least 30 minutes to an hour. The problem 

 is to get a perfect combination between the lime and sul- 

 phur. The more rapidly you boil the quicker you get the 

 combination. 



Formula for lime-sulfur wash : 20 pounds of lime, 15 of 

 sulfur and 50 gallons of water. 



Use a good grade of powdered sulfur. The fine sulfur 

 flour rather than flowers of sulfur. Buy sulfur under a 

 guarantee. 



Quest. I understand then that the purpose of boiling^ 

 is simply to form a solution of the lime and sulfur? 



Yes ; if you can bring all your lime and sulfur into solu- 

 tion in 30 minutes, you have done all you can expect. 



Quest. What is wrong when considerable sulfur is left 

 in solution? 



It is due to poor lime and because the lime has been al- 

 lowed to come in contact with the air. If the lime is all 

 right then your method of preparing is wrong. 



Quest. What are the black spots on the apples? 



Baldwin spot. 



Quest. Is there any remedy for it ? 



It is due to deficiency in the soil but there has been no 

 satisfactory explanation. 



Quest. What is the cause of knurls in apples ? 



They may be caused by the tarnished plant bug. A 

 simple remedy for this would be clean cultivation to get rid 

 of the conditions favorable to that pest. 



Quest. Would clear lime strewed under the trees help 

 to rid the soil of any pest, 



I don't believe it would be worth while. 



Quest. What is the Cordley mixture? 



125 pounds of sulfur, 60 pounds of lime, and 50 gallons- 

 of water. It is a clear solution. 



Quest. In spraying large apple trees, would you use 

 the direct or the mist spray for the codling moth? 



That depends on how near you can get to your tree. 



