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abundant in the adult form in the latter part of May, and there is good 

 reason to believe that the larvae have the same destructive habit in 

 grass, and, from the occurrence of the imago so early in the season, it 

 would seem probable that as in exsiccatus there are two broods each 

 season. 



Another moth nearly related to these web-worms occurred this sea- 

 son in great numbers in pastures and meadows, and though I have not 

 had opportunity to study the larval stage, it may be well to call attention 

 to it as a probable grass pest that may prove as troublesome as the spe- 

 cies of Cr ambus. This is the Nomophila noctuella, and it was noticed in 

 greatest abundance from May 18 to 22 (1889). The species has been 

 observed as abundant in previous seasons and is probably a pretty con- 

 stant inhabitant of grass land. 



During the latter part of May and first part of June the Blue Grass 

 in the vicinity suffered from the trouble called u Silver Top," the head 

 and upper joint of the stalk turning whitish. I examined a number of 

 these withered and partly wilted stalks and in a few cases fouud Thrips 

 present, and in some cases swollen joints appearing as if affected with 

 Meromyza, the adults of which were very plentiful on grass a little 

 earlier. If due to Thrips, I think they must leave the grass almost as 

 soon as it begins to wither, as in the cases where I found them I selected 

 stems that were just beginning to turn white. 



The Clover-seed Midge has appeared in this State, and the present 

 year is the first I think that it has been destructive. It has been re- 

 ported in a few localities and I swept the adults from clover in consider- 

 able numbers May 25. A very few were bred from clover heads in 1888. 

 Epitrix cucumeris was very abundant on potatoes, but as the vines 

 had a very vigorous growth in the early part of the season no serious 

 damage resulted. 



Diabrotica vittata and D. 12-punctata were exceedingly plentiful and 

 furnished me material for some tests of X. O. Dust hitherto reported. 

 I also tried for these a mixture of London purple and kerosene emulsion 

 for the purpose of killing the beetles gathered on the squash vines and 

 preventing the complete destruction of foliage, depending upon the 

 London purple to kill the beetles gathering on the vines later. After 

 this application the vines did very well and I think the plan a success. 

 The beetles will, some of them, fly away before the kerosene takes effect, 

 but they probably all die in a short time. I have since noticed that 

 Prof. John B. Smith has used a similar plan for treating the Elm-leaf 

 Beetle, and it would seem to be applicable in many cases where the 

 expense is not an obstacle and where it is desired to kill the bulk of the 

 iusects gathered on plants before they have time to destroy foliage, 

 which they must do to some extent when treated with London purple. 



Plant lice of many species were abundant in the latter part of the 

 season. Of these the Thorn-tree Aphid (Schizoneura eratcegi Oest.) was 

 especially conspicuous by its abundance on thorn trees. The common 



