87 



crawling scale that comes later, is also killed by this prolonged 

 action. We looked at the trees in June and found them badly in- 

 fested; we looked at the same trees late in the summer and found 

 ninety per cent of the scale killed. 



A. I. Weidner. Will Lime Sulphur not have a tendency to 

 drive the young crawling scale onto the fruit? 



Prof. Symons. I would not think so, Mr. Chairman. I would 

 not think so. Of course, there may be a point in that. I would 

 much rather take chances on a twig effectively sprayed with Lime 

 Sulphur, than on a twig with nothing on it whatever, because the 

 scale that has come out, is hunting for an easy place to put its beak. 

 They will crawl :^r twenty-five hours looking for a convenient 

 place to insert their beaks. Of course, if the fruit is near, they will 

 infest that. 



A. I. Weidner. I have not made a careful examination; but 

 late in the season, just before picking time, the scale developed con- 

 siderably on the fruit. I do not know how it is on the limb — I have 

 not examined that, I have been sick, and was not able to do it. 



Osage Orange Hedge. 



Prof. Symons. Another thing I want to call your attention to. 

 is the fact of the Osage Hedge being a common breeding place for 

 the San Jose Scale. I believe you do not have much of this Hedge 

 in this county. Maryland has large quantities of it. The Osage 

 Orange Hedge is a dear one to any farmer. It is a nuisance. It is 

 a make-shift fence at the best, and cannot be counted upon to turn 

 cattle. It is expensive to keep in shape, and certainly the work of 

 trimming it is very disagreeable work. The expense of keeping it in 

 shape will be more than that of replacing it with a good wire fence. 

 It draws on the land ten to fifteen feet for food and moisture. 

 Finally, I have made careful observations of the Osage Hedge in 

 Maryland, and have not seen one that was not infested ; and they 

 simply serve as distributing points to other places. I certainly urge 

 men to eliminate this form of hedge from their farms. Washington 

 County has considerable of it. 



Peach Lecanium. 



The Peach Lecanium, or Terrapin Scale, is a pest we have 

 known for the past half a dozen years, but one that we had not 

 looked upon as being a serious pest, or which we had entertained 

 any doubts of being able to control. The past season, however, has 

 changed our opinion on it. It has spread rapidly in Maryland. I 

 I know of one case, from responsible hearsay, that it occurs in Penn- 

 sylvania. I understand that Mr. Wertz has an infestation in his or- 

 chard. I do not know as to other conditions in the State. I know, 

 however, that in our State it has caused considerable loss to the 

 smaller growers this past season, and I ask you all to look out for 

 it. You wall observe that it is a tiny scale, but much larger than the 

 San Jose, belonging to a larger class of scale insects. San Jose is a 

 hard scale, the Lecanium is a soft scale. In 1907 we obser^^ed this pest 

 in Maryland, and in one orchard at Smithsburg it was starting on a 

 few trees. So I had one of my assistants take up some work on it. 



