April, '11] GOSSARD: INSECTS OF THE YEAR 203 



Pres. Sanderson. The next paper will be read by Mr Symons. 



THE TERRAPIN SCALE IN MARYLAND 



By T. B. Symons and E. N. Cory, College Park, Md. 

 [Withdrawn for publication elsewhere.] 



President Sanderson: Is there any discussion? 



Mr. Smith : I was interested in Professor Symons' paper. We had 

 that scale in one of our counties. It is the only county in the state 

 of New Jersey where it has done great injury to the trees, more than 

 in Maryland. It has a tendency to kill the twigs, and so very largely 

 causes the loss of fruit. I found we could prevent this habit of going 

 out on the twigs by pruning, and we have advised pruning to good 

 effect in some instances. Professor Symons said definitely that he 

 had no success with lime-sulphur, which I knew before, as we had not 

 had in our state. He also said he used miscible oils in the fall, and in 

 the spring he used scalecide. We used this, but not so strong as Pro- 

 fessor Symons did, on one man's trees. He said the conditions were 

 so bad that he was willing to do almost anything to save his trees. 

 I advised him to use crude oil, with the understanding that it was a 

 kill or cure remedy. 



President Sanderson: I would say I have omitted two papers by 

 Professor Gossard. Possibly we could hear from Professor Gossard 

 now\ 



ENTOMOLOGICAL REVIEW OF THE YEAR 1910 



By H. A. Gossard, Wooster, Ohio 



From the observations of our staff and the correspondence of the 

 year I have selected the following notes as possessing sufficient interest 

 to report for publication: 



Among our field tests scalecide was tried in both fall and spring 

 applications compared with commercial lime-sulfur and also with 

 home-made concentrated lime-sulfur made according to the formula 

 given by the Pennsylvania Experiment Station. About 20 acres of 

 young apple orchard with bearing peach trees for fillers were sub- 

 jected to this comparative test. All of these applications were prac- 

 tically effective against San Jose scale, leaving scarcely any survivors 

 at all. So far as it was possible to discover any distinctions at all 

 between the results of the different treatments, there appeared to be 

 a few more scales on the oil sprayed trees than on those treated with 

 the lime-sulfur mixtures, but from a practical standpoint all the results 



