FRUIT SPRAY PROGRAM FOR 
MINNESOTA 
For fruit spray schedules recommended for commercial grow- 
ers write for University of Minnesota Extension pamphlet 184. 
The following is a simplified spray program for the home 
fruit grower. This calls for few sprays and suggests the use of 
a combination spray or dust. This program will not give as 
clean fruit as the complete program recommended for commercial 
growers; it will, however, be better than no program at all. 
Many dealers sell combination fruit sprays and dusts. In 
buying one of these check the label to be certain it contains 
ingredients that will be effective. The mixture should contain 
insecticides, including DDT and lead arsenate, and a fungicide 
such as ferbam. The following home mixed combination spray 
is suggested where commercial preparations are not available, 
Spraying should be done under as high pressure as possible. 
Regulate the discs of the nozzles so that the spray will be in the 
form of a mist. Spray at the proper time as a delay of a few 
days will greatly reduce the effectiveness. Do not spray when 
blossoms are in full bloom stage. i 
COMBINATION SPRAY MIXTURE 
3 parts (by volume) of lead arsenate 
2 parts (by volume) of ferbam 
2 parts (by volume) of 50 per cent wettable DDT 
Use 5 level tablespoonfuls of this mixture per gallon of 
spray solution. 
APPLES AND PEARS 
First Spray: When fruit buds show pink at tips. 
Seconp Spray: After three-fourths of the petals have fallen. 
Tuirp Spray: Five to seven days after the second spray. 
Fourtn Spray: One week after first maggot flies appear, or 
about July 15. 
PLUMS 
First Spray: When three-fourths of the petals have fallen. 
Seconp Spray: When plums are the size of peas. 
RASPBERRIES 
First Spray: When blossoms first show—about one week before 
bloom. 
Szeconp Spray: When, and if powdery mildew appears. (Use 
2/3 cup wettable sulfur in five gallons of water, or apply 
dusting sulfur with a duster.) 
CURRANTS AND GOOSEBERRIES 
First Spray: When terminal leaves are % to I inch long. 
Szeconp Spray: When, and if powdery mildew appears. (Use 
2/3 cup wettable sulfur in 5 gallons of water, or apply dust- 
ing sulfur with a duster.) 
