Insects Affeeting the Strawberry. 



63 



this treatment to arrest the multiplication of the insects. As the eggs re- 

 main during the winter upon the crowns of the plants, not hatching until 

 spring, care shovild of course be taken in forming new plantations, that the 

 young plants are obtained from fields not infested by lice, or else that these 

 and their eggs are destroyed upon the plants before they are set. Although 

 I have not yet had any opportunity to experiment upon this matter, I have 

 little doubt that dipping the plants in the kerosene emulsion or'in a simple 

 mechanical mixture of kerosene and water, about three parts to one hun- 

 dred, would be efficient for this purpose, and secure 'the new field against in- 

 fection from the old. 



Leaf-Hoppers? 



Order Hemiptera, Family Tettigonidse. 



I find in the Farmer and Fruif-Grower for June 16, 1880, an item quoted 

 from the " Examiner and Chrcnicle," which probably relates to some one of the 

 above family, known by the name of leaf-hoppers : 



" In a field which produced some fine fruit last June, as the plants were 

 set the previous August, there appeared about the time the fruit was gath- 

 ered a small insect resembling the grape-thrips. only one-third its size, or less 

 than one-sixteenth of an inch long. They are perfectly white, and keep on 

 the under side of the leaves that are nearest the ground. The leaves soon 

 turn black and dry up, and the ground under the plant gets foul, as if soot 

 had been thrown there. As fast as the dead leaves were removed, they 

 would collect on the lowest leaves of the plant as before, and soon cause their 

 decay. So numerous were they that they would fill your eyes and nostrils 

 full when you were cleaning off the plants. I gave them a heavy dose of air- 

 slacked lime, but it did not seem to destroy any of them, and the plants were 

 nearly ruined. Before the season was over I could see some of them on the 

 other plats on my ground, and on some of my neighbors' a mile away, and, 

 if they have not been destroyed by the frost, they may do as much damage 

 this season." 



The False Chinch-bug. Nysius destructor, Riley. 



Order Hemiptera, Family Lygreidse. 





^ 



Fig. 8. False Chinch Bug {Nysius destructor, Riley): 

 b. Pupa; c. Adult. After Riley. 



a. Leaf of potato showing injury 



