REPORT OF THE SOCIETY 49 



cide to 15 gallons of water, thus making 16 barrels of spray mixture with one 

 barrel. When diluted, the mixture looks like milk and is easy and pleasant 

 to use. 



Apply the liquid just before the leaf-buds burst, so that the egg- masses 

 may be hit. Great care must be taken to see that every egg-mass is thor- 

 oughly wet. This will destroy the eggs or prevent the larvae from hatching. 

 The eggs are laid on the twigs and on the branches; so keep this in mind 

 when spraying. 



The Green Apple Bug, Lygus invitus, also known under the name 

 of the False Tarnished Plant Bug, is a pest of apples and pears, and 

 was the subject of Prof. W. H. Brittain's paper. The excellent illustrations 

 gave the members present a splendid opportunity of becoming familiar with 

 the bug and its injuries to the apple and the pear. 



The insects cause the injury in the wingless stage, when they resemble 

 long legged aphids and are very active. From observations made, the insect 

 comes out over a considerable period, but by the time the blossoms fall, 

 the greater number of them will have emerged. Damage usually begins 

 by the piercing of the young and tender leaves. An apple leaf severely 

 attacked appears as if covered with tiny little pricks. The chief injury 

 made by the bugs, however, results from their stinging the small fruits 

 of the apple and the pear. On the apple these punctures become in time 

 small warts or protuberances upon the surface of the fruit, which later 

 turn brown at the heart and eventually drop off. Larger apples are malfor- 

 med and frequently present a curiously scarred and twisted appearance. 



Control: — From a study of the life history and habits of the insect, 

 the following spray will be found of use: Black Leaf 40, M of a pint to 100 

 gallons of water, applied at the period of maximum emergence, which 

 will be about the time blossom petals fall. But it must be remembered 

 that the bugs have a great ability to hide. Consequently great care must 

 be exercised to cover each one with the spray. Prof. Brittain hopes to be 

 able to give more complete information about this insect next year. 



At the evening session Dr. H. T. Fernald gave a most interesting 

 address in the assembly hall at the Normal School. 



