A Plum Scale. 699 



money have been put into those trees to bring them to their 

 present condition, and also then realize that unless this pest is 

 soon checked it means the ruin of his orchard in the near future. 

 Every tree could be drenched with the emulsion a dozen times for 

 less than one-eighth of the money that is realized from one good 

 crop from the tree. No time should be lost in trying to devise 

 some way of checking this pest with little expense. The insect 

 is now present in full force and drastic measures are necessary. 

 Every day's delay in trying to save a penny, means dollars of 

 loss next year if the pest gets the start of you in the spring. 



Briejly summarized, the way to combat this pest is to spray 

 the infested trees several times, at least twice, this winter or 

 before April i with kerosene emulsion diluted with four parts of 

 water. Always bear in mind that each little scale must be hit 

 with the liquid. Do not let the pest get started in force in April. 

 If it does, you cannot fight it effectively until about July i. 

 Then the young are hatching and while they are wandering 

 about on the branches for a few days, they can be successfully 

 destroyed by the emulsion diluted even six or eight times. If 

 these young scales get established on the leaves in July, they 

 will be beyond your control with a spray until November. You 

 will be helpless against their ravages during the summer months. 

 But the moment the leaves fall, begin the work of destruction on 

 the tender hibernating scales then exposed on the bark. Thor- 

 oughness must be the watchword, if this new and most serious 

 enemy is to be checked. 



Mark Vernon Slingerland. 



