tucky, agricultural states supposed to b,e now free. Conditions 

 for getting established seem right, also, in other states now 

 free as long as the winters are comparatively mild and the 

 summers rather dry, hence the need of effective means of con- 

 trol. 



The foodplants, mentioned in U. S. D. A. Bulletin 779, p. 

 4, include wheat, barley, rye, oats, milomaize, kaffir corn, cot- 

 ton, buckwheat, peas, beans, cabbage, tomato, lettuce, Russian 

 ' thistle, mallow, sheepweed and many others, showing the in- 

 sect to be able to feed upon plants far apart botanically. The 

 list there given fails to specify two important food plants, 

 namely, alfalfa and mesquite. The insect produces 4 genera- 

 tions in such locations as the Imperial Valley, in California, to 

 3 generations or less in its northern range. 



The fact that the grainbug has the mallow (Malva parvi- 

 flora) for one of its original foodplants, indicates that this pest, 

 in cotton fields, is able to become a first class pest, and prob- 

 ably is so already in the Imperial Valley, judging from what 

 the U. S. Entomologist says in his report for 1918, p. 11 "Other 

 work on cotton insects (other than the boll weevil) has been 

 carried on at . . . El Centro, Cal., the recent developments 

 of cotton in the last locality, in the Imperial Valley, necessi- 

 tating careful watch for cotton pests." 



Of course, it is not necessary to "watch for cotton pests" 

 after once there "were developments." But it is up to the 

 Entomologist to carefully watch whether there are not better 

 means of control than he is now dishing up. If it is not his 



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