324 ENTOMOLOGICAL NEWS. [December, 



ists in any very great quantities as yet, and it may be that it can be de- 

 stroyed by sacrificing the chance of a crop for one year, and so entirely 

 excluded from that region, unless again brought in on plants from the 

 East. The easiest way to accomplish this, if the bogs are properly laid 

 out, would be to reflow well along in the Spring, after there has been a 

 general hatching of the larva all through the infested bogs. The expe- 

 rience that I have had, and the results of the experience of others, has 

 shown that we cannot depend upon insecticides for the absolute destruc- 

 tion of any insect of this character; while on the other hand, a measure 

 such as I have suggested, is likely to prove completely successful. We 

 have here another illustration of the importance of carefully looking over 

 plants that are purchased from one region of our country to be set out in 

 a new place. Had the person who purchased the Eastern plants known 

 of the danger of introducing also the injurious insects it would have been, 

 comparatively speaking, an easy task to destroy the insects that were on 

 the plants while yet in the egg stage and before they were set out. It 

 would have paid to have taken each plant separately, before it was set 

 out, and examined every leaf for eggs. They are not difficult to see, and 

 it would have been only a fraction of a minute for each spray to be exam- 

 ined. I quite expect that nothing will be done and that the cranberry 

 growers in Washington will make for themselves an enormous amount of 

 work to be attended to in the future. They are providing themselves 

 with a tax which will be levied upon them without any action or will oi 

 their own, and which they will in time spend thousands of dollars to get 

 rid of, where a few hundred at the outside, expended at the present time, 

 would secure them future immunity. 



The Pear Psylla in New Jersey. A short time ago Prof. Beckwith, of 

 the Delaware Experiment Station, wrote me that he had found specimens 

 of this insect in Burlington County, N. J., and at my request sent me some 

 specimens. These I forwarded to Mr. Slingerland, as they were imma- 

 ture, and received from him the assurance that Prof. Beckwith was correct, 

 and that this was really the pear Psylla. This is the first time that the 

 insect has come to my notice from New Jersey. As soon as possible I 

 communicated with the growers in whose orchard the insect had been 

 found, and afterward visited the nursery, which is one of the most exten- 

 sive in that part of New Jersey, and whose owners are also of the most 

 intelligent class of men engaged in business of this description, and are 

 strictly entitled to be called successful farmers. So far as I can see from 

 the examination made, the insect is as yet confined to this orchard, and 

 indeed, to only a comparatively limited part of it. It is certain that we 

 have not to do here with a normal spread, but rather with an introduction. 

 These gentlemen import each year a considerable number of young trees 

 from different parts of the country, and among other places northern 

 New York furnishes a large number of pear trees. Mr. Slingerland's 

 work has informed us that in some parts of the State of New York this 

 insect has been exceedingly injurious for two or three years back, and 



