140 STATE POMOLOGICAL SOCIETY. 



The cost of this Paris green application, when made on a large 

 scale, with suitable apparatus, onl}- once or twice a year, must, sa3'S 

 Mr. Forbes, fall below an average of ten cents a tree. 



The use of solutions of Paris green or of London purple in 

 water, applied by spraying machines such as were invented and 

 described in the reports of the national department of agriculture 

 by the United States Entomologist and his assistants, have effected 

 a revolution in remedies against orchard and forest insects. We 

 expect to see them in careful hands, tried with equal success in 

 shrubberies, lawns and flower gardens. — A. S. Packard^ Garden 

 and Forest. 



FIGHTING APPLE WORMS. 



Prof. S. A. Forbes delivered an address giving results of an elab- 

 orate series of experiments upon the effect of spraying apple trees 

 with Paris green for the codling moth, which was illustrated by a 

 series of colored diagrams showing graphically the results obtained. 

 The conclusion, as given by Prof. Forbes, was this : That at least 

 seventy per cent of the loss commonly suffered by fruit growers from 

 the ravages of the codling moth can be prevented by thoroughly 

 applying Paris green in a spray with water, once or twice in early- 

 spring, as soon as the fruit is fairly set, and not later than the time 

 when the 3'oung apple turns downward on its stem. On motion of 

 Mr. Augustine a vote of thanks was tendered the Professor for the 

 careful work being done by him, and many members said they were 

 going to spray their orchards. — Prairie Farmer. 



Great care is necessary in the use of Paris green for the destruc- 

 tion of the codling worm. Prof. Braun in his paper at our winter 

 meeting gave the direction for using it at the rate of a teaspoonful 

 to the gallon of water. If the Paris green is pure this will be too 

 strong and will seriously injure the foliage of the tree. One-half the 

 quantity of the poison will make the liquid strong enough, and even 

 then will sometimes injure the leaves. We give this subject promi- 

 nence here as its use is increasing very largely in the State. 



AN ARBOR DAY EXERCISE FOR SCHOOLS. 

 The department of Botany and Forestry, of the Agricultural Col- 

 lege of Michigan, issued the past spring. '*Hints for Arbor Day." 

 It contains valuable suggestions for the observance of Arbor Day 



