188 



N. H. AGR. EXPERIMENT STATION 



[Bulletin 144 



small quantities, as under such circumstances the loss of heat is 

 too great. It may be prepared as follows : 



Place 20 pounds of good stone lime in a barrel and pour 3 or 

 4 gallons of water (not heated) over it. Add 20 pounds of 

 sulfur and 3 or 4 gallons more of water. Mix the sulfur and 

 slaking lime thoroly, adding more water if the mixture becomes 

 too thick to stir. The heat from the slaking lime will boil the 

 mixture violently. A piece of carpet thrown over the top of the 

 barrel helps to keep the heat in and thus to prolong the action. 

 When the boiling ceases the mixture is ready to dilute. The 

 above quantity should be diluted to 100 gallons for use on apple 

 foliage. If hot water is used in preparing the mixture a greater 

 dilution is necessary. 



The self-boiled lime-sulfur seems to offer as little opportunity 

 for spray injury as any fungicide. Its value in controlling dis- 

 eases will depend upon the quality of lime used and the care in 

 making. Lime that is partially air slaked is unfit for use in the 

 preparation of any fungicide, but is especially inefficient in 

 making the self -boiled lime-sulfur. 



SPRAYING FOR APPLE DISEASES. 



No. 



Application. 



Before buds open. 



After leaves expand and 

 before flower buds 

 open. 



When flower buds have 

 mostly fallen. 



Three weeks after third 

 application. 



Two or three weeks after 

 4. 



First or second week in 



August. 



P'ungicide. 



Bordeaux 6-6-50 or copper- 

 sulfate 1-25 or lime-sul- 

 fur 1 to 11. Lime-sulfur 

 should be used in or- 

 chards having San Jose' 

 Scale. 



Purpose. 



Lime-sulfur 1-30 or 

 deaux 3-3-50. 



Bor- 



Lime-sulfiir 1-30 or Bor- 

 deaux 3-3-50. An insecti- 

 cide should be added for 

 the codling moth. 



Lime-sulfur 1-30 or Bor- 

 deaux 3-3-50. An insecti- 

 cide should be added for 

 the codling moth. 



Lime-sulfur 1-30 or Bor- 

 deaux 3-3-50. 



Lime-sulfur 1-30 or Bor- 

 deaux 3-3-50. An insecti- 

 cide may be ad<led for 

 the brown-tail moth. 



Gives antiseptic treatment 

 to any small wounds not 

 otherwise cared for. De- 

 stroys any spores of 

 scab, leaf spot, etc., that 

 may have reached the 

 tree by this time. 



For apple scab. Most im- 

 portant application for 

 leaf spot. 



Most important applica- 

 tion for apple scaij. 



For apple scab and fruit 

 spot. 



For fruit spot. May be 

 omitted if earlier spray- 

 ings have been made. 



To prevent late spread of 

 apple scab. 



