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gating be attempted in the field, it should be done several times at 

 intervals of a day or two, and before the hoppers develop their wings, 

 that is, in this state the last of July or the first of August. It is 

 always desirable to destroy these insects early, before they are large 

 enough to greatly affect the vines, and before the energy of the plant 

 that should be ripening its fruit, is required to repair the damages inflict- 

 ed on its leaves. . 



If fumigation in the field be tried, its success will be much increased 

 by using a small canvas tent which can be let down over the vines and 

 kept there for a little time to retain the smoke, though entirely satisfac- 

 tory results will hardly be obtained this way. Another method of some 

 value is to carry lighted torches through the vineyard at night, beating 

 the vines lightly at the same time. The insects will be attracted to the 

 light as they fly from the disturbed vines and perish in the flames. It is 

 well, also, to remove all rubbish from near the vines, and frequently rake 

 the ground late in the fall and early in the spring, to expose the hiber- 

 nating insects to the frosts. 



About the middle of August the attention of this Division was called 

 by Hon. J. H. Deraond of Northampton, to the condition of the grape 

 vines in his grapery. A special agent, sent to examine them, reported 

 that the leaves were badly discolored, and that leaf-hoppers were present 

 in large numbers. The remedy used in this case was that of fumigating 

 with pyrethrum. The grapery was tightly closed and the powder scatter- 

 ed, on burning coals carried under the vines. The treatment was en- 

 tirely successful, all the insects being destroyed. A similar experiment 

 tried on a vine in the open air in Amherst gave much less satisfactory 

 results. 



The Glassy-winged Soldier-bug {Hyaliodes vitripennis Say) devours 

 many of these pests, and is their only insect enemy so far as known. It 

 belongs to the Heteroptera, the other group of the true bugs, and is rather 

 larger than the leaf- hopper, and when mature is pale green with a pinkish 

 head and thorax, and the wings are transparent with a pink cross band. 

 This insect should not be destroyed. 



ANTS. 



Small ant hills in smooth lawns, and in the cracks or along the edges 

 of walks, much injure the otherwise neat appearance of the grounds 

 about our houses. During the past year many inquiries how to drive 

 away the industrious nuisances have been made, and a number of exper- 

 iments have been conducted, to discover a remedy. 



In Bulletin No. 11, of the Division of Entomology of the Department 

 of Agriculture is a report of experiments made in Indiana for the same 

 purpose. These experiments were: 1. Carbolic Acid and water; 



