INSECT PESTS AND THEIR CONTROL 981 



Broad-bean Weevil 



(Laria rufimana). 1 



Adult, or beetle, enlarged. 



other food plants are known, including a few garden crops and a number of 

 weeds. 



Treatment. — Spray or dust arsenicals upon the leaves. Poison bran 

 mash may also be of value. 

 Bur. Ent. Bull. 43. 



Beet Leaf Beetle, The Larger (Monoxiapuncticollis,S&y.). — This leaf 

 beetle, known also locally as the alkali bug and 

 the French bug, resembles somewhat the elm- 

 leaf beetle. It causes considerable injury to the 

 sugar-beet in Colorado and nearby states. 



Treatment. — Dust or spray foliage with ar- 

 senicals. 



The Beet Leaf Hopper (Eutettix tenella, 

 Baker). — The beet in the Western states is often 

 troubled with a condition known as " curly leaf , " 

 caused by the above-named leaf hopper, a light 

 yellowish green species about one-eighth of an 

 inch long. 



Treatment. — Spray the beets thoroughly with 

 a 40 per cent nicotine sulphate solution in 



water, diluted 1 part 

 to 600; or spray with 



5 per cent kerosene emulsion. Many hoppers 

 may be captured on a shield smeared with 

 tanglefoot or covered with sticky fly paper 

 if it is pushed up and down between the 

 rows. A wire or rod should be fastened in 

 front of the shield at the proper distance to 

 stir out the hoppers. 



Bur. Ent. Bull. 66, Pt. 4. 

 Blister Beetles (Meloidce). — At times a 

 number of crops are badly damaged by the 

 insects known as blister beetles or "old- 

 fashioned potato bugs." These beetles are 

 rather large, long-legged and are variously 

 colored, the usual colors being black, gray or 

 striped with yellow and black. 



Treatment. — Apply arsenate of lead or 

 other arsenicals to the affected plants as a spray or dust. Several treat- 

 ments may be necessary if the beetles swarm on crops from other localities. 

 Bur. Ent. Bull. 43, pp. 21-27. 



The Cabbage Looper (Autographa brassicm, Riley). — The looper is a 

 light-green worm often referred to as a measuring worm because of its 

 looping movement when crawling. It feeds on the leaves of cabbage. 



Blister Beetle 



(Epicauta marginata) .- 

 Enlarged. 



J Bur. Ent. Bull. 96, Pt. 5. 



2g.ur. Ent. Bull. 43. 



