55 
EXPERIMENT 3. 
Lygus pratensis L. 
May 25, confined adults on young shoots of Gooseberry. 
Result.—May 30, no effect perceptible. 
EXPERIMENT 4, 
Lygus pratensis L. 
Tried same experiment as No. 3, leaving adults on shoots for twenty 
days. 
Results.—Same as in the preceding. Insects all dead. 
EXPERIMENT 5. 
Lygus pratensis L. 
June 25, placed twelve adults on young shoots of Pear. 
Result.—July 10, both the insects and that portion of the shoot 
upon which they were confined were dead. The plant withered and 
turned black, as in Experiment No. 2, but in this case died. 
EXPERIMENT 6. 
Lygus pratensis lL. 
May 21, placed a number of larvee on a Charles Downing strawberry 
which was just turning to the white color which precedes the final red 
or ripe color. 
Result.—May 28, berry fully ripe and uninjured. Not “ buttoned.” 
Several larve dead, and one advanced to pupa. 
EXPERIMENT 7. 
Iygus pratensis lL. 
May 25, placed ten pups on nearly full-grown Crescent strawberries, 
Results.—May 31, berries no larger than when insects were placed on 
them, but are withered and prematurely ripe. No indication of “ but- 
toning.” Some of pup dead; others now grown to adults, alive and 
active. 
EXPERIMENT 8. 
Lygus pratensis L. 
May 26, placed Jarvee on a half-grown Sharpless strawberry. 
Result.—June 7, berry not more than half as large as when insects 
were placed upon it; withered and black. Five of the larve now pup 
and still alive. 
