66 THE CONNECTICUT POMOEOGICAL SOCIETY. 



Over in New Jersey, Prof. Smith is very favorably impressed 

 with the sokible oils as a spray for the San Jose scale, 

 and he recommends several of these brands. Prof. Phelps of 

 Illinois says that they are just as effective as the lime- 

 sulphur sprays, but cost a little more. Taft of Michigan has 

 practically the same results to give us, although he still sticks 

 to the lime and sulphur spray. I sprayed three last winter 

 with one of the soluble oils ; sprayed plum trees. The as- 

 sistants did the work, and we thought we did a pretty good 

 good job. We sprayed in the winter and estimates of the scales 

 counted later on showed about 90 per cent, killed. Last 

 fall those trees were practically covered with San Jose scale. 

 From that experience I would say that they were no good, 

 because the trees w-ere about as badly covered this fall as 

 last fall. I said last fall I unearthed the San Jose scale in 

 w^estern New York ; one man had 600 pear trees, and about 

 150 of them were infected with San Jose scale. This man 

 said to me the trees are no good to me as thev are, and I 

 said, let us try some of these new washes ; if you are going 

 to cut down the trees anyway, let us see if we cannot do some- 

 thing with this new insecticide. The scale was found in late 

 September or early in October, and I said we w'ill spray the 

 trees before the leaves get ofif. So we sprayed the infected 

 trees while the leaves were on, late in October, but remem- 

 ber the leaves had done most of their work for the trees to 

 develop the fruit buds, but the result was we took ofif very few 

 leaves. We used one of these oils,- one to 15 in strength 

 (the manufacturer recommends one to 20) ; then we waited 

 until the leaves got off the first of December, and sprayed the 

 trees again. It was much easier to spray after the leaves w^ere 

 off; it didn't take near as much insecticide, and the result was 

 that about 90 per cent, of the scale was killed. There is no 

 question in my mind but what it will kill the scale, but you 

 have got to hit the scale. W^e killed all the young scale ; the 

 scale were hatching the day we were spraying; killed most of 

 the mother scales that w'ere bearing young, and killed lots of 

 half-grown scale. We did a very killing job — the first time, 

 90 per cent. The second spraying I hope we got five per cent, 

 more. Now, if there is any scale left in Alarch we are going 



