162 STATE HORTICULTURAL SOCIETY. 



Prof. Whitten — I wish to name another point. In the Botanical 

 garden we sprayed pear trees for the codling moth, beginning shortly 

 after the blossoms fell and spraying three times. I supposed we had 

 done with the moth for the year ; but 95 per cent of the fruit was af- 

 fected with codling moth from the later broods. It is well known that 

 there are sometimes three broods in a season. The second crop will 

 come in and do damage, even if you have destroyed the earlier brood. 

 Mr. Robnett spoke of spraying for the plum aphis and also of spray- 

 ing cabbage. I would like to know with what results? 



Mr. Robnett — Plum aphis was killed by tobacco and quassia, three 

 ounces of each to one gallon of water. In a small garden of cabbage 

 we got rid of the worms and lice by hot water very near the boiling 

 point. It killed some of the edges of the outer leaves, but did no 

 harm. 



Dr. Green — Three years ago I made absolute failure in spraying 

 apples. Out of every 50, 49 had moths. I sprayed plums six times. 

 They nearly all had worms in them. The spraying business is a hum- 

 bug. We can't save our fruits by spraying. That is played out. A 

 friend in Indiana proposes to catch them and kill, them by lights and 

 fly-paper. In three nights he caught them all. 



Mr. Morrill — We know we can clean out the codling moth. When 

 the calyx is open, we can kill them with poison. The second brood is 

 harder to manage. If all of us killed the first brood, there would be 

 no second. There is another apple insect, the apple maggot, which is 

 sometimes mistaken for the codling moth. It works between the apples 

 where two touch. 



Because one man fails, there is no reason why he may not succeed, 

 when we understand the nature of the trouble and work at the right 

 time with the proper materials. Government tests show that the live 

 spores of the scab remain dormant when dry. A little water starts it, 

 but if the water has one pound of bluestoue to 50,000 pounds of water, 

 the spore dies. These spores are now resting in your orchard ready 

 for spring. 



When it rains, it sticks to the apple, and makes it scabby, so that 

 you can't sell it. Within a few years the big orchards will be found 

 spraying on such mild winter days as this. That is going to be the 

 final result of spraying. I think it probable that lime will not be mixed 

 with the bluestone in the future. Tafc has been trying one pound to 

 five barrels of water. It does not injure the foliage, but kills every 

 spore it strikes. To say that spraying is a failure is wrong. Some 

 men may have failed, but spraying is a success. 



