96 



TE IN ID AD AND TOBAGO BULLETIN. [XVIIL 2.- 



Foimula No. 3.— Nicotine and Starcli Paste — 



Starch or Flour ... ... ... 5 pounds. 



Nicotine ... ... •• •••7 fluid ounces. 



Water ... ... ••• .:.50 American galls. 



Mix up the starch in a little boiling water into a mucilage and then 

 dilute to 50 gallons water. When well mixed add nicotine. 



Formula No. 4. — Nicotine and liesin Wash. — For making the resin 

 wash (according to Farmers Bull. 90S, U. S. Dept. of Agr.) take :— 

 Pulverized resin (rosin)... ... ... 5 pounds. 



Lye or Washing soda ... ... ... 1 pound. 



AVhale or fish oil ... ... ...16 fluid ounces. 



Water to make total product ... ... 5 American galls. 



Place in a suitable cooking vessel the resin, oil, and 1 gallon of water 

 and heat. In the meantime dissolve the lye or washing soda in a little 

 water and after the resin has softened carefully pour in the lye solution. 

 Thoroughly stir the mixture and then add 4 gallons of hot water and boil 

 for about two hours or until the resin wash will unite readily with cold 

 water, making an amber coloured liquid. The total product should be 

 5 gallons and any water lost through evaporation should be made up 

 with the necessary amount of additional water. For mixing with 

 nicotine take : 



Resin wash made up as above ... ... 2 galls. American. 



Nicotine ... ... ... .•• 7 fluid ounces. 



Water ... ... ... •• 60 American galls. 



Mix the resin wash with the water then add th.e nicotine sulphate. 



USEFUL MEASURES IN CONNECTION WITH SPRAYING. 



1 -, ,. _f4 Imperial galls. 



1 Pitch oil tm ... ... — |5 American galls. 



8 Teaspoonfuls ... ... = 1 fluid ounce. 



16 Fluid ounces ... ... = 1 American pint. 



20 „ ... ... = 1 Imperial pint. 



8 Pints ... ... ... = 1 gallon. 



1 Quarter-])Ound tin of Caps' an tobacco or a) = about 7 fluid 

 tin of 50 Capstan cigarettes [ ounces. 



SPRAYING HINTS. (1) 



Always use fresh temper lime for Bordeaux mixture. 



Dissolve bluestone by suspending it in a bag at the surface of the 

 water. 



Always strain spray mixtures thoroughly. 



Clean the spraying outfits every night aft^r using by pumping water 

 through the hose, rods and nozzles. 



Always drain tlie hose, as water remaining inside will rot it. 



Thoroughly agitato all solutions bsfore mixing or using. 



Lime juice will lemove Bordeaux mixture from the hands. 



Spray thoroughly. 



(1.) Irjm Circii'ar No. 4, Bourd of Aijy'ondture, Trinidad and Tobago. 



