306 INSECT PESTS OF FARM, GARDEN AND ORCHARD 



when full grown about one-third of an inch in length. The 

 general color is nearly uniform dark olive brown, the conspicuous 

 piliferous tubercles being pale yellow, and the head and portions 

 of the legs black. The eggs are dull brownish gray, and the 

 surface, as seen through a lens, is covered with septagonal and 

 hexagonal areas."* 



Control. Paris green diluted with flour and dusted over the 

 foliage has effectively controlled the pest, and probably any 

 thorough application of any arsenical either wet or dry would 

 be effective. Professor C. P. Gillette f has observed that the 

 beetles accumulate on the " mother " beets early in the spring, so 



FIG. 258. The larger beet leaf-beetle (Monoxia puncticollis Say) : a, female 

 beetle; 6, eggs; c, d, larvae from above and side; "b, claw of male; o, 

 claw of female all much enlarged. (After Chittenden, U. S. Dept. Agr.) 



that if a few beets were left in the ground over winter they might 

 serve as trap plants for the protection of the younger plants in 

 spring. As injury is mostly on or near alkali ground, such soil 

 should be avoided. 



* Quoted from F. H. Chittenden, Bulletin 43, Bureau Ent., U. S. Dept 

 Agr., p. 10. 



t C. P. Gillette, 24th Report Colo. Agr. Exp. Sta. (1902), pp. 108-111. 



