FORTY-FOURTH ANNUAL REPORT. 51 



A Member — I had no eatoi'i)illars at all, l)iit there was an orchard 

 rioht near mine that was not sprayed early and it was literally alive 

 with them and the owner sprayed afterward with no resnlts. There 

 were as high as eight or nine web nests in each tree. Two ponnds of 

 arsenate of lead to fifty gallons of water destroyed thein in my orchard. 



A Member— Was it paste or powder? 



Answer — It was paste, two ponnds to fifty gallons. 



A Member — Does the spray at this time control the canker worms 

 as well as the tent eater-pillar? 



]\Ir. White — Yes, it shonld. 



A Member — Now what about this aphis? We know that there is 

 a certain portion of them that we do not kill, that fly away at the end 

 of the season and lays eggs. A great many have an idea that these eggs 

 are killed when we spray with Lime-Snlphnr in the early spring. Is it 

 rrne? 



Mr. White — The old ^'home-made" mixture Lime-Kulphur that we 

 applied hot did but the concentrated, whether home-made or commercial, 

 does not. 



Mi\ Case — What do you do with those born alive? 



Mr. White — The lice mentioned are the ordinary green aphis. These 

 winter over in the egg stage and hatch out, producing stem mothers 

 usually just as the buds are getting green. They soon give birth to 

 living young and these in a short time, do the same and, if weather 

 conditions are favorable and parasites do not thrive, they soon become 

 extremely numerous. I am reminded of a little incident which illustrates 

 the rapidity with which they reproduce, A gentleman acquaintance of 

 mine lives in a city of southern Michigan and is a great lover of shrubs 

 and tiowers and he has many beautiful beds of them in his large yard. 

 One morning he discovered many of these little green lice on his rose 

 bush just beneath the pantry window. He prepared some strong soap 

 suds and taking his little boy -Johnny out there, showed him the lice 

 and told him to wash the lice off before he went to school. Johnny 

 is an energetic ten year old boy and he worked faithfully for quite a 

 while but finally made up his mind that his job was more than he had 

 thought it to be and he made a vigorous and supposedly secret oral pro- 

 test. Among the things his mother, who was washing dishes in the 

 pantry, heard him say was ''the darn little rascals they have grand 

 children every twenty minutes." 



They do reproduce very rapidly and unless weather conditions are 

 favorable for parasitic insects to control them, it may be necessary 

 to spray with tobacco extract. 



A Member — I sprayed with nicotine sulphate three times. After the 

 first time, I went home to wash up and when I got back they were still 

 alive. I went over them three times with hardly a stop but the third time 

 r fixed them. 



A Member — I had the same experience with green aphis. 



Mr. Cook — We put these little green lice into the pure solution and 

 they would crawl there for half an hour. It was a nicotine solution the 

 Horticultural Society put out last year. 



Mr. White — The ''Black Leaf 40" is the only commercial tobacco 

 extract I dare suggest. 



