SPRAYS AND OTHER MEANS OF CONTROL 



1873 



MISCELLANEOUS FOnHIULAE 



Torrosivc Siililiiiintc 



Bichloride of Mercury 

 This is the standard disinfectant when 

 working i)ear blight. No other disin- 

 fectant should be used to wash the cut 

 surfaces or to dislnfert the pruning tools. 



Corrosive sublimate 1 part 



Water 1.000 parts 



Corrosive sublimate may be purchased 

 in tablet form at drug stores, and direc- 

 tions for making solutions will be found 

 on the container. Never put corrosive 

 sublimate into a metallic container, al- 

 ways use a glass bottle. Be sure to 

 label the bottle "POISON" in large, plain 

 letters. It is the deadliest of poisons. 



Formalin 



Formaldehyde 



Formalin (40 per cent solution) 1 pt. 



Water .SO gals. 



This is a preventive of potato scab and 

 smut of grains. Potatoes and grains 

 should be soaked in it for about two 

 hours. Smut of onions may also be pre- 

 vented by treating the seed. Practically 

 all garden seeds will be disinfected by 

 the use of this formula. 



Pine Tar 



For soil-infesting, seed-eating insects 

 such as the wireworm, tar may be used 

 with good results. 



Pine tar 1 teaspoonful 



Seeds 1.5 lbs. 



Dampen the seeds, such as corn, squash, 

 cantaloupes, etc.. with a little warm water. 

 Put in the tar and mix thoroughly; allow 

 to dry before planting. The tar acts as a 

 repellent. 



WHITEWASHES 



(1) 



Goyernnieiit Wliifewash 



r.ime (unslaked) 40 lbs. 



Salt 15 lbs. 



Uice flour for ground rice) 3 lbs. 



Spanish whitinti i^, lb. 



Olue 1 ' lb. 



Water 5 gals. 



Slake the lime in warm water and cover 

 so as to keep in the steam: strain through 

 a fine sieve or strainer; add thf salt, well 

 dissolved, in warm water. Then add the 

 rice boiled hot: the Spanish whiting; 

 and finally the glue which ha.s been previ- 

 ously dissolved over a slow fire. Lastly, 

 add the five gallons of hot water. Stir 

 well and let stand for a few days. Apply 



hot with a brush. One pint of the mix- 

 ture will cover a square yard. Coloring 

 matter may be put in, such as Spanish 

 brown, yellow ochre, etc. 



(2) 

 Wliitewash f<»r Trees 



Lime (air slaked) 30 lbs. 



I'allow 4 lbs. 



Salt 5 lbs. 



Water Enough to make wash flow well 



When old trees are cut back for top- 

 working, they may be protected from sun 

 scald by using the above wash. 



(3) 



Whitewashing the limbs of trees has 

 been an old practice of considerable merit, 

 because it serves somewhat as an insecti- 

 cide and a fungicide. It also prevents 

 sunburn. 



Lately whitewash has been used with 

 considerable success in the control of 

 pear thrips, as follows: 



Quick lime 80 lbs. 



Water 100 lbs. 



After the lime is slaked and mixed the 

 material should be strained through a 

 fine sieve into the spray tank. 



WHITE LEAD PAINT 



White lead, slightly thinned with lin- 

 seed oil, should be used where large cuts 

 are made, or in cases where the wood is 

 exposed by the removal of the bark and 

 cambium, as in the case of pear blight 

 eradication. It should not be applied in 

 the latter case until it is certain that the 

 disease has been eradicated. 



GRAFTING WAX 



(1) 



Uesin 4 lbs. 



Reeswax 2 lbs. 



Tallow 1 lb. 



(2) 



Resin 3 lbs. 



Beeswax 2 lbs. 



Tallow 2 lbs. 



(3) 



Resin 4 lbs. 



Ri'pswax 2 lbs. 



I.inseed oil 1 pt. 



(■riiftiiiu: Wax for Walnuts 



(1) 



r.ecswax 1 lb. 



Resin 5 lbs. 



Linseed oil 1 pt. 



Lamp black 1 oz. 



(2) 



Ueeswax 1 lb. 



Resin r> lbs. 



I.inseed oil 1 pt. 



I'Mour 1 pt. 



