50 
the last is more promising than the others, but that it cannot 
tLITi ab ' V , aPP t l eC l ° D a lar S e scale ' Experiments made by 
them show also that even a clean fallow for an entire season 
. uot starve out the worms; that neither buckwheat, mustard 
iape crops—frequently recommended to clear the earth of 
wireworms will accomplish the desired result- and that sa?t 
applied at the rate of 1,600 pounds to the acre-a heavy dresS 
ng neithei dines the wireworms deeper into the soil nor causes 
them to migrate to any appreciable distance; that kainit used 
a te, tl +K er ’ eVen ln Vftr - V lar 8' e quantities, had little if any 
effect on the wireworms;* that muriate of potash—four to six 
tons to the acre (an excessive amount)-is but slightly effective- 
that lime at the rate of even two hundred bushels per acre does 
not injure wireworms; that chloride of lime must be used in 
iiiipi ai tiryb]e quantity to produce any marked effect; and that 
gas-lime, although capable of destroying the wireworms, must 
be applied in such great quantities that its use is impracticable 
on laige aieas. Bisulphide of carbon poured into a hole in the 
excessi ? ve a cost e mfeSted hl11 destro ^ s the wireworms, but at an 
. Tlie Promising remedy for wireworms, in my judgment 
is one winch has unfortunately not been experimentally tested 
nf ttl rf iv f Ilever t thel f precisely based upon our knowledge 
of the life history food and habits of these insects. It consists 
?/ £ , f ' ot .f' tlo,l ] ln winch clover follows always upon grass and is 
itself followed by corn According to this plan pastures and 
meadows of grass might lie unchanged for several years, being 
Pi*''i® d ’ w ? len br °ken up, in late summer or early fall and sown 
to clover in the spring—either with oats, or on winter wheat or 
rye sown the tall before The clover should be allowed to stand 
a second year, and might then be followed with corn with posi- 
t've assurance that the wireworms originally in the sod would 
by that time have entirely disappeared. From the regular ro¬ 
tation for grain lands grass would thus be excluded. In such 
a ofaMon corn might be followed by small grain, this bv clover 
vBibF effpJr C ° r H Whll f, the . wireworms might produce some 
, 01 [ bbe small gram the first year after grass, this 
' ° | usually be much less serious, at any rate, than the dam- 
lo corn. 
nrTvf ^ e ? e f a -i ^homological effect of some such management 
could not fail to be beneficial, since it would applv to cut¬ 
worms and white grubs as well as to the wireworms now under 
c iscussion. The system of rotation now common in Central 
the sections should be similar with resoeet to f re atment Care was taken that 
auenee, the kainit section was renoJfei?2 of , land ’ sltu ^ion, etc. As a conse- 
the muriate section as but little infested andf^bdo 11 lr ^i- 7 f exe “ pt fro P injury by insects, 
is evident from the context that this PTnorfminf intermediate strip as almost destroyed, it 
ently not under theTnepection of an entomSS. made SOme years betore - appar ‘ 
