50 
10. For the extirpation of the ‘‘ woolly aphis” and other insect pests, the board 
has adopted the following formule, which are found to be effectual in the States of 
California, Oregon, and Washington: 
Spray No. 1. 
[ Winter spray for woolly aphis and scale insects.] ; 
Lime, unslacked ...... ‘Sedtie wie he Sate es See eee eee eres 30 Ibs. 
Sulphur, powdered sie hs 2 3. eee ee eae ee ee eee 20 Ibs. 
Salt, ‘Coarse: 6. Act SA sb Le RE eT ee ee eee cee ean 15 lbs. 
Wratter {2302 ho sek ee eee ie Pee em egee 60 gals. 
Place 10 pounds of lime and 20 pounds of sulphur in a boiler with 20 gallons of 
water, and boil over a brisk fire for two hours, until the sulphur is thoroughly dis- 
solved. It will then be amber-coloured. Next place 20 pounds of lime in a cask and 
pour water enough over it to thoroughly slack it. Add the salt. When dissolved, 
add to the lime and sulphur and boil half an hour longer. Add enough water to 
make 60 gallons. Apply lukewarm. 
Spray when the trees are dormant, or as soon as the leaves fall, and again in the 
spring before the buds swell. A good force pump should be used, and care must be 
taken to thoroughly cover the infected trees with the mixture, which should be con- 
stantly stirred when applying. 
The above ereparation can be obtained in solid form, requiring only the addition 
of water to be ready for use, and, owing to the difficulty of preparation, the board 
advises the adoption of this method. Care should be taken to add the necessary 
quantity of water to reduce the mixture to the strength recommended above. 
Note.—To insure freedom from lumps it is advisable to pass the mixture through 
a wire sieve or strainer. Nozzles which are self-cleaning and adjustable, such as the 
‘‘Improved Bean” and ‘ Bordeaux,” are best adapted for distributing this and other 
spraying mixtures which contain a considerable amount of solid matter. 
. Spray No. 2. 
[Summer spray for aphis. ] 
Quassia Chips: 520 225 soc foot sees ec ee eer eee cee 8 lbs. 
Whale-o1l soap ca. 2 cob ses eee cecioee mies same tee ceace se seen 7 lbs. 
Water oo o2c5. Gece a See es. ee eee. ee ee re ene 100 gals. 
Boil the quassia chips in about one gallon of water to each pound quassia chips for. 
one hour. Dissolve the soap in hot or boiling water; strain and mix both together, 
and add the required amount of water to make 100 gallons altogether. 
To be used with spray pump with as much force as possible. This is the standard 
remedy for aphis in hop yards, and has given good results against other forms of 
aphides wherever tried, with no injury to foliage. 
Spray No. 4. 
[Bordeaux mixture for apple scab and other fungous diseases.] 
Sulphate of copper (bluestone) ose cb bade ies Seeae eae ener eee 4 Tbs. 
Fresh unslacked linie.. 22.7.5. ose ee ein oe ee eee eee 4 lbs. 
Water... --- jcc oe ele ie oe ae Bee Som een epee meee 50 gals. 
In a barrel place 25 gallons of water. Weigh out 4 pounds of sulphate of copper, 
then tie the same in a coarse gunny sack, and suspend it just beneath the surface of 
the water. By tying the bag to a stick laid across the top of the barrel no farther 
attention will be required. 
In another vessel slack the 4 pounds of lime, using care in order to obtain a very 
smooth paste, free from grit and small lumps. To accomplish this it is best to add 
only a small quantity of water at first, say two or three pints. When the lime begins 
to crumble and the water disappears add more water gradually. 
