24 
ately after the blooming season. Directions for treating the disease 
are briefly as follows: 
1. Carefully remove and burn or bury all diseased lemon fruits, how- 
ever small, either on the trees or onthe ground. Cut down and destroy 
all sour orange trees or sprouts from sour stock in the vicinity of the 
lemon trees. 
2. Prepare ammoniacal solution of copper carbonate as follows: Take 
5 ounces of copper carbonate and stir up with about a pint of water to 
a thick paste; then dilute with 14 gallons of water in a wooden pail. 
Stir vigorously and at the same time add slowly 2 pints of strong 
ammonia! or 54 pints weaker ammonia water.” Stir until all is dis- 
solved, or at least all but a few granules, and then dilute with water to 
50 gallons. ; 
3. Apply the ammoniacal solution with a pump giving a good pres- 
sure and furnished with a Vermorel nozzle. The initial spraying should 
be made when the first young fruits are exposed by the falling of the 
flowers, the second spraying usually after two or three weeks, a third 
two or three weeks later or when blooming is nearly or quite over, and 
a fourth when the fruits are of a size ranging from that of a pea to 
that of an olive. If necessary a fifth and even a sixth spraying should 
be made after particularly wet weather. In most cases four and often 
five sprayings are absolutely necessary. By carefully watching for the 
appearance of warts on the fruit, particularly during moist weather, 
the grower can determine when to spray and whether any spraying:is 
necessary after the third application. 
4, Direct the spray so as to coat all the young fruits evenly, but 
thinly. It is not necessary to spray the leaves, but it will not be possi- 
ble to avoid wetting them when spraying the fruit. 
5. Wateh for scale insects, and if they appear in great numbers use 
resin wash, kerosene emulsion, or other insecticide. This caution is 
necessary because in some cases where trees are sprayed with Bordeaux 
mixture the fungous parasites of the scale are killed, and. consequently 
the scale insects multiply very fast. As yet no such effect has been 
observed when ammoniacal copper carbonate was used, but the possible 
danger from this source should be borne in mind. 
6. If preferred Bordeaux mixture can be used in place of the am- 
moniacal solution of copper carbonate. In preparing the Bordeaux 
mixture take 6 pounds of copper sulphate and 3 pounds of lime; add 
25 gallons of water to each, then mix, and add 6 pounds of dissolved 
soap to the mixture. This spray must be applied with care, giving 
the trees only a thin coating, otherwise the youngest foliage may be 
injured or scale insects induced. 
1Aqua ammoniz fortior (28 per cent) of druggists. 
2A qua ammoniz (10 per cent) of druggists. 
