48 MANUAL OF VEGETABLE-GARDEN INSECTS 



The yoiiiiij: iiyinphs arc yellowish niarkcMl with indistinct 

 lon^itndinjil dark lines. They feed almost exclusively on 

 weeds snch as peppcr-^rass, shej)hcnrs ])ursc, Kussian thistle 

 and sa<j^e brush. The older nymphs are more distinctly 

 marked with brown and reddish lines. When mature, the 

 bugs scatter to all kinds of vegetation but in cases of drought 

 are forced to congregate on cultivated i)lants. In Illinois the 

 first brood nym])hs mature in the latter part of May and the 

 second in July. The broods overla]) so that in midsummer 

 all stages may be found together. In Kansjis there are said 

 to be at least five generations annually. 



In Colorado there is a smaller race of the species which bears 

 the name Nysiiis jnirnitus Uliler. It has been recorded as very 

 injurious to beets grown for seed. 



Control. 



Much can be done to ])revent injury by the false chinch-bug 

 by clearing the fields of all rubbish in the fall, thus depriving 

 the bugs of hibernating shelter. This may be accomplished 

 by burning over the fields. If the vegetaticm is not sufficient 

 to carry the fire, straw may be scattered over the field. A 

 gasoline torch may be used to kill the insects where they have 

 congregated on weeds or clumps of grass. The insects may 

 also be killed by thorough spraying with "Black Leaf 40" 

 tobacco extract, 1 pint in 100 gallons of water to which 10 

 ])()unds of soap have been added. Burlap shields made sticky 

 with a coat of crude petroleum are sometimes used to ca])ture 

 the })ugs on plants that cannot be sprayed. 



References 



Riley, 5th Rept. Tns. Mo., pp. 111-114. 1873. 

 Osborn, Rept. U. S. Ent. for 1887, p. 1()2. 

 ?^)rl)es, 2.3r(l \ivpL 111. St<ato Ent., pp. 117-118. 1905. 

 U. S. I^\irm. Bull. 7C)2. 1916. 



