Nc. 6. DEPARTMENT 01'^ A(!RICULTUllE. 96:5 



SPRAYING CALENDAK. 



A Brief Outline of the Best Methods for the Protection of Crops 



From Insects and Fungi. 



The utility of some condensed outline showing how and when to 

 spray or otherwise treat fruit trees, shade trees, garden and field 

 crops, and flowers, to prevent or check injuries by insects and 

 plant diseases, is demonstrated by the number of such publications 

 in other States. It is practicably impossible, however, to include in 

 such a paper, all of the foes of the agriculturist, and accordingly, only 

 such are considered as have been found to be most likely to be pres- 

 ent in Pennsylvania. At the same time, treatment for the injuries 

 touched on here, will, in nearly every case, also control those not 

 treated of, and accordingly, in this way the ground will be nearly us 

 well covered as though all such foes were considered in detail. 



In all cases, treatment according to the directions here given must 

 be applied with judgment, as no fixed rules can be given which will 

 hold for every case, and an ignorant adherence to the directions 

 without a knowledge of the particular conditions of the case, may 

 fail to give the desired results. To obtain success in the control of 

 insect and fungous foes, a knowledge of what the foe is, the best way 

 to attack it, and when this attack is most etfeetive, are necessary. 



Any information desired on these subjects may be obtained by 

 writing to the Division, of Zoology, Department of Agriculture, 

 Harrisburg, Pa., and the sending of samples of injury done, or of 

 the insects or other foes causing the trouble will greatly aid in giving 

 satisfactory answers. 



Apple. 



CODLING MOTH: 



1. Paris green or Arsenate of Lead as soon as blossoms have fallen. 

 2. Repeat about ten days later. 3. Repeat in severe cases two 

 weeks later. 4. Repeat about August 1 for se'cond brood. See 

 Report of Department for 189S. 



BUD-MOTH: 



1. Paris green or Arsenate of Lead as soon as leaf buds become 

 green. 2. Repeat 1 just before blossoms open. 3. Repeat 2 

 after blossoms fall. 

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