220 



STATE BOARD OF AGRICULTURE. 



of rubbish over wide areas at once becomes apparent. The destruction 

 of all brambles, wild blackberry and wild strawberry plants would also 

 help to check the trouble. The preference of the beetles for the staminate 

 or pollen-producing varieties of strawberry suggests another method of 

 attack in regions where the beetle is often troublesome. Mr. F. H, Chit- 

 lendeu recommends planting early, staminate varieties at the sides of the 

 (ields for the purpose of trapping the pests,* 



The arsenicals have thus far proven of little value, owing to the fact 

 that the only time when one can reach the pests is during the punctur- 

 ing of the bud or the cutting of the bud stem. It would seem, however, 

 that a thorough spraying with arsenate of lead at that time might prove 

 efficient, using four or five pounds to a barrel of water. This would 

 have the additional effect of lessening the depredations of rose-beetles. 

 Kerosene-emulsion is said to repel some of the beetles. Any spray should 

 be put on as soon as the work of the beetles becomes apparent, as shown 

 by the drooping or severed buds, and before blooming. 



CABBAGE CURCULIO. 



{Ceutorhynchus rapac.) 



Small gray snout-beetles that feed on cabbage leaves and tmnel in the leaf-stems. 



This erratic little pest deserves brief mention. It is an insect capable 

 of producing dire havoc, but only on rare occasions does it live up to 

 its possibilities. In 187G, or thereabout, it was reported by Professor 

 A. J. Cook, at that time of this station, as having been found at Adrian 

 and at Lansing. Since that time it seems to have failed to attract 

 attention in our state until 1902, when it appeared at Charlotte on the 

 12th of Julv, when it was 



destroying 



late 



reported as 

 cabbages. 



The method of a ^ tack is 

 described by Mr. F. 11. Chit- 

 tenden, in bulletin No. 23 of 

 ihe U. S. Bureau of Entomol- 

 ogy. They appear early in 

 the spring and la}' their 

 eggs in wild plants of the 

 mustard family. Here the 

 prubs feed and produce 

 before the middle of 

 They seem to prefer 

 mustard to cabbages 

 and cauliflowers, but when 

 the supply of mustard is 

 limited, they will attack the 

 generation each year. 



adults 



.lune. 



hedge 



Fia.'lS.TCabbage 

 Bui. 23, N. Ser., 

 Agriculture. 



curculio, enlarged, after Chittenden 

 Bureau of Ent., U. S. Department of 



latter. There is supposed to be but one 



*Insect Life, Vol. VII., pp. 14-28. 



