ZN8BCT8 INJURIOUS TO AGRIi RB. 19*7 



destructive in a wel summer bucc< a dry one, at the 



time whi'ii the wheat is in the milk. The caterpil 



a month; the chrysalis state two weeks, unless it hiber- 

 nate 

 The caterpillar is an inch and a half l"i;'_ r : the head is 

 ered by a network of confluent spots, and along the 

 middle of the face run two lines diverging at each end. A 

 light-colored waved line just above the legs is succeeded l>v a 

 dark one. then a light one edged with two thread-li 

 while the upper part of the body i- dark, with an inter- 

 rupted white thread running along tin- middle of the back. 

 The moth is rusty, grayish-brown, Bprinkled with black 

 Bpecks; and the Bpecies i- 'ailed unipuncta from the single 

 white discal dot of the fore w h 



Remedies The best preventive remed} is to burn meadows and 

 grass lands, where i 1 are laid, in autumn. When tic 



are in motion and threaten a field of wheat, the latin- should lie 

 protected by a deep trench with steep or undermiu -. in 



which fires arc kindled or kerosene is poured Tin- use of lh< 

 iua\ be supplemented by »lu-i imr ll orwhi . 



ell each >iilc of the ditch w ilh I ' 



The Wheatdiead Army-worm (1 >. -This 



caterpillar injures the heads of wheat, rye, and barley, 1" . 

 ning at the base, sometimes at the centre of tin 

 times 1k.11. .win-- out the soft -rains, leaving nothing but the 

 shell and the chaff. The caterpillar is like tie ?oing 



species, but is striped with sulphur-yellow and light and 

 dark brown lines. The in common from Maine to 



Kan 



The Wheat Thrips (TJirips striattis Osborn, 1 58).— 

 This isan exceedingly minute, active, long, na 

 ing insect of a bright yellow or shining black c< 

 ring in numbers on the heads and stalks in J July, 



puncturing and thus exhausting the juio 

 and rendering them dwarfish and shriv< ^.nol 



kind common on wheat in New York, in Juiv . is the t! 

 banded Thri] 



Other wheat-insects are certain specii - -.' 



