W. & T. SMITH COMPANY, GENEVA, 
N. Y. 
SPRAY CALENDAR 
This schedule has been prepared by entomologists and plant pathologists of the New York State Agricultural Experiment Station and the 
New York State College of Agriculture. 
APPLE SCHEDULE 
TIME OF APPLICATION 
SPRAY MIXTURES 
ENEMY 
DUST MIXTURES 
Delayed Dormant 
When leaves of blossom 
buds are out ^ to ^ inch 
Lime-sulfur, 11 gallons 
Lead arsenate, 2, I < lbs.^ 
Nicotine sulfate, ^ pint 
Water to make 100 gals. 
Scab 
Scale 
Blister mite 
Bud moth 
Leaf-roller 
Casebearers 
Aphids 
No satisfactory dust for scale or blister mite. Rosy aphis has not 
been so efficiently combated with dust as with sprays, and it is doubtful 
if a 2 per cent nicotine dust applied during the delayed dormant period 
will afford adequate protection. 
When blossoms shov 
pink or earlier if a rainy 
period threatens 
Lime-sulfur, 2 >2 gals. 
Lead arsenate, 2 lbs.* 
Water to make 100 gals. 
Scab 
Green fruit worms 
Bud moth 
Leaf-roller 
Casebearers 
Apply 90-10 sulfur-lead arsenate dust.f If conditions are favorable 
for a bad outbreak of scab, spray as much as possible, using dust to 
complete the operation on time. 
In combating rosy aphis with dust mixtures the most promising 
means of control is a heavy application of a mixture containing not less 
than 2 per cent nicotine as blossom buds begin to show oink. 
PEAR SCHEDULE 
When blossom buds sep¬ 
arate in the cluster 
Lime-sulfur, 11 gallons 
Water to make 100 gals. 
Scale 
Scab 
Psylla eggs 
No efficient dust for scale or psylla eggs. 
Just after the petals fall 
Lime, 30 to 40 pounds 
Copper sulfate, 2 lbs. 
Arsenate of lead, 2 lbs.* 
Nicotine sulfate, 1 pint 
Water to make 100 gals. 
Codling moth 
Psylla nymphs 
Scab 
No efficient dust for young psylla nymphs. 
90-10 sulfur-lead arsenate dust for scab and codling moth. 
Two weeks after the pet¬ 
als fall 
Lime-sulfur, 2 gallons 
Water to make 100 gals 
or 
Bordeaux mixture 
3-10-50 
Scab 
Psylla flies and hardshells are sensitive to nicotine dusts, but practical 
value of treatment has not been satisfactorily proved. 
Emergency spray in sum¬ 
mer when psylla becomes 
abundant 
Lime, 30 to 40 pounds 
Copper sulfate, 2 lbs. 
Nicotine sulfate, 1 pint 
Water to make 100 gals. 
Psylla nymphs 
No satisfactory dust for late broods of young nymphs 
PLUM SCHEDULE 
While buds are dormant 
Lime-sulfur, 11 gallons 
Water to make 100 gals. 
(All varieties) 
Scale 
No satisfactory dust for scale. 
When shucks are off 
young fruits 
Lime-sulfur, 2 gallons 
Arsenate of lead, 2 X A lbs.* 
Water to make 100 gals. 
(All varieties except 
Japanese) 
Leaf-spot 
Brown-rot 
Curculio 
Apply 90-10 sulfur-lead arsenate dust, or if curculio is abundant 
80-20 sulfur-lead arsenate dust. 
From 14 to 20 days later 
and before fruit ripens 
Lime-sufur, 2 gallons 
Water to make 100 gals. 
(All varieties except 
Japanese) 
Leaf-spot 
Brown-rot 
Apply 95-5 sulfur-lead arsenate dust. 
CHERRY SCHEDULE 
When bud scales separate 
and expose green blossom 
buds 
(For Sweet Cherries only) 
Lime-sulfur, 11 gallons 
Nicotine sulfate, A pint 
Water to make 100 gals, 
or 
Nicotine sulfate, A pint 
Soap, 5 or 6 lbs. 
Water to make 100 gals. 
Scale 
Aphids 
Aphids 
No satisfactory dust for scale. Control of aphis by 90-10 sulfur-lead 
arsenate dust with 2 per cent nicotine not yet demonstrated. Thoro 
dusting with 2 per cent nicotine dust should reduce number of insects. 
When petals fall 
Lime-sulfur, 2 x /i gals, 
(sweet cherries, 2 gals.) 
Arsenate of lead, 2 X /Z lbs.* 
Water to make 100 gals. 
Leaf-spot 
Brown-rot 
Curculio 
Apply 90-10 sulfur-lead arsenate dust, or if curculio is abundant 
80-20 sulfur-lead arsenate dust. 
10 days after petals fall 
or when shucks are off 
Lime-sulfur, 2j£ gals, 
(sweet cherries, 2 gals.) 
Arsenate of lead 2yZ lbs.* 
Water to make 100 gals. 
Leaf-spot 
Brown-rot 
Curculio 
Apply 90-10 sulfur-lead arsenate dust, or if curculio is abundant 
80-20 sulfur-lead arsenate dust. 
When fruit-flies appear 
Arsenate of lead, 2 A lbs.* 
Water, 100 gallons or 
Arsenate of lead, 2 x /i lbs.* 
Lime-sulfur, 2\i gals, 
(sweet cherries, 2 gals.) 
Water to mnke 100 eals. 
Fruit-flies 
The merits of dusting in controlling fruit-flies are not definitely 
established 
PEACH SCHEDULE 
Late fall or early spring 
before buds swell 
If scale is abundant use 
Lime-sulfur, 11 gallons 
Water to make 100 gals 
If there is no scale use 
Lime-sulfur, 014 gals. 
Water to make 100 gals. 
San Jose scale 
Leaf-curl 
Leaf curl 
Dust not advised. 
When blossoms show pink 
Self-bciled lime-sulfur 
8-8-50 
Blossom blight 
Brown-rot 
Apply 95-5 sulfur-lead arsenate dust. 
When shucks are falling 
Self-boiled lime-sulfur 
8-8-50 
And arsenate of lead* 
3 pounds in 100 gallon? 
Brown-rot 
Scab 
Curculio 
Apply 90-10 sulfur-lead arsenate dust. 
Two or three weeks after 
shucks fall 
Self-boiled lime-sulfur 
8-8-50 
Brown-rot 
Scab 
Apply 95-5 sulfur-lead arsenate dust. 
^Double the amount of lead arsenate if paste form is used. 
tCopper lime dust may cause russeting especially at the calyx application. At this time use spray or 90-10 sulfur-lead arsenate dust. 
Note. For spraying of Grapes, Currants, Gooseberries and other small fruits, and other information in regard to spraying, we should advise 
your applying to the New York State Experiment Station at Geneva. N. Y.. or the State College of Agriculture, Ithaca, N. Y. 
