28 



(lie ;il)(»\'(' we Ikinc loiiiid l;ii'\;r of dilTci'ciit lots in ;i siiinl;ii' coiidilioii in 

 our l)i-('C(lin,i;-c!if;(>s June If), .Inly 'J. I*), and '_*;>, and Aiiiiust ){. Those 

 facls indicaUi an unusually loiii;' period of midsunini(>r prcpai'atioii foi' 

 (lie pu|)al li'aiisforniatiou. 



Tiiis life history sufi'^osts nolhinu,' cxci^plional hy way of prevention 

 ()!• remedy. \\'h(>re the held has become infested in fall, as shown 1)\' the 

 ^(Mieral disti-ihution of the cutworms in the corn in early sprints, replaid- 

 int;', to he safe, should he post poned until towards I he middle of .hnie. 



Tni'. ('i,\\-ii.\<'Kia) Ci'i'wouM. 

 FcUiit (/liKliitnii Nh)rr. 

 'I'his ciilworm (l'\t;. 10) is usually dark in a\-erai;(' color, xaryinu,, 



how(>\i'r, from i;r(>enish li'ray to dark hrown. The hack is conunonly 

 decidedly lia,ht, ii;rayish white or st I'awcolor, or occa_ 

 ^IS^ sionally I'lnldish hrown. Thislit;h( dorsal spac(> is dixided 



loni<;11i\vise |)\ ;i moi'e oi' less conspicuous median whil(> 

 line, which is usually bordered with darker. ( )n eacii 

 side of the |)ale dorsal space ai'e two irreiiulai' whitish 

 lines. The full-.i!;i'own lar\a is about an inch and a 

 (|narl(>r in length. 



This speci(>s is extremely \ari;d)le in mnnbers, nuilli- 

 plyini;- under som(> conditions to become ;i nolabl(> and 

 widely des(rncli\'e pesi, and (Ihmi occui'riui; in scai'cely 

 noticeable numbers h»i" som(> years lher(>afl(>r. It was 

 not distinji'uisluHl as a cutworm uidil ISSS, when il was 

 bi'cd lo the adult in our ins(>ctary. in ISS7 and ISSS il 

 was the most destrucli\'e cuIwoimu in Illinois, especially 

 to clo\(M' and youiiii corn. In IS').") il w.as by far tlit> 

 leadini;' sp(>ci(>s in a ii'enei'al culworm oulbi'eak in Keu- 

 luckw and caused serious injury (o a lhirly-.Mci'(> lli^ld ol 

 i,.,,. ,,) .|.|„. v'oiuiu, corn on old sod urouuil n(\ir Champaign. In IDOI 



wonn'''('/'''<''/V\'"</ •' \^'''^ '*'"' "' ''"' '""^' abundaid cutworms in corn lields 



iiMKoT''^' ''" ill western Illinois, ;ind was excessix'ely abundaid in 



pansy beds at Irbana, cullini; oil and destroying; all tlu> plants. i)urin,<;- 



its yi>ars of j;n>alest abim- 



dauce here it was especially 



notorious for its iujiu-ies to 



clo\-er, wliich it picferred lo 



blu(>-^rass. It likewise ale 



oats, li'rass, and corn, inv.adini; 



corn Tu'lds fi-ou\ adjacent 



ni(>adows, and d(>\-ourini!; tlu> 



plants as it went as thorouiih- 



Iv as (k)es th(> aiiuN-worm. 







L.I*'' 



Kii:. II. 'Pile ("Iny-bnckcl Cut woiiii (l-'<llia nhidi 

 ll|■ill^. miiill. I'liilainoil. 



