516 STATE BOARD OF AGRICULTURE. 



GENERAL TREATMENT FOR STRAWBERRIES. 



Examine the young plants before setting them. Pick off all dis- 

 colored or diseased leaves. If root lice are suspected, dip the roots in 

 strong tobacco-water. 



After the growth starts, spray with Bordeaux and a poison to pre- 

 vent the leaf spot and to destroy the leaf-roller insect that may be 

 present. 



For fruiting plantations, spray with Bordeaux before blossoming and 

 repeat ten days to two weeks later. After fruiting if the bed is to be 

 fruited again, mow and burn over quickly (as on a day when there is a 

 wind, to avoid burning the crowns of the plants). If leaf rollers have 

 been present, spray with poison after the growth has started again but 

 before the leaves curl. 



For strawberry root lice, see Michigan Bulletin No. 244 page 88. 



GENERAL TREATMENT FOR POTATOES. 



For the Potato Scar. Soak the uncut tubers for two hours in 30 

 gallons of water and one pint of formalin (can be secured of any drug- 

 gist). This solution can be used several times. Do not put treated 

 tubers back into crates or bags that held scabby potatoes. Make the 

 treatment only a few days before planting if possible. Do not plant 

 upon land thait has recently grown crops of scabby potatoes or beets. 



For the Blight and "Bugs." Begin spraying with Bordeaux mix- 

 ture and poison when the "bugs" first appear, or when the plants are 

 about 8 inches high, and repeat about every 2 weeks as long as the 

 plants are growing. Spray often in warm, muggy weather; fewer spray- 

 ings are necessary in dry weather. 



Use Bordeaux mixture (6 pounds copper sulphate and 4 or 5 pounds 

 of lime to 50 gallons of water, and put in the poison, about % pound 

 of Paris green or 2 pounds of arsenate of lead, or 1 quart of the stock 

 solution of Kedzie mixture). 



Dilute lime-sulphur will not do as a substitute for the Bordeaux for 

 potatoes. 



PREPARATION OF SPRAY MIXTURES. 



STRONG LIME-SULPHUR. 



Strong lime-sulphur lo be used on dormant trees or bushes for scale 

 insects, can be prepared in three ways: 



By the old formula, 



By reducing with water "the home made" concentrated wash. 



By reducing with water the "commerciar' concentrated wash. 



The "Old formula" has been used for many years with good results 

 and is very satisfactory. The formula is as follows: 



