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id pouring this over the droppings. Before application it isnec- 
ry to pay some attention to weather conditions. Cloudy days, or 
® in which the temperature igs below 60° F,, should be avoided and 
6rence given to those in which sunshine and heat predominate. 
| pplying it the best method seems to be to scatter it thinly among 
he grasshoppers every few days. It can, however be put out in small 
jie in which condition its attractiveness lasts longer but it is 
re dangerous to stock. 
_ here is no doubt whatever as to the remarkable attractiveness 
f this mixture at all periods, from the time of the locust’ appear- 
nee in May until they die in September, or of its superiority over. 
ay Other form of extermination yet tried in these parts. The evi- 
mence of farmers is almost unanimous on this point, and all the best 
yre Speak with enthusiasm of its value, the few exceptions being due 
© faulty methods in its application and mixture. My brothers and I 
ave aiso used it continuously for the last ten years with perfect 
uccess and at very small cost, the last occasion being this season 
hen we undoubtedly saved many acres of crop, while on more than one 
icCasion its use undoubtedly saved the whole crop, as was shown by the 
e 2struction of those not treated, 
This, however, refers only to Manitoba, as my experiences have 
een but casual Outside, but I am of opinion that climatic conditions, 
articularly humidity, play an important part in the sucess or fail- 
ré Of this mixture. From a few observations made in Québec some 
ears ago I found horse dung far less attractive there, and the road- 
@ys, which in Manitoba would be swarming with locusts, were compara- 
ively free. Judging from this, I would expect to find it valueless 
the moister parts of Canada and the U. 8., and most useful in the 
ryer Northern States, particularly the Dakotas, Minnesota, and Mon- 
ana, as well as Alberta, Saskatchewan, and Manitoba. 
Why a mixture so attractive in Manitoba should prove useless in 
mebec in a time of drought, with the same species of grasshopper in- 
Mlved, is difficult to answer. That it is so there seems no doubt, 
nd the problem is therefore to ascertain, with accuracy, what the 
Onditions are and where the conditions are favorable or otherwise. 
should consider that a trustworthy indication would be to watch the 
peshiy-dropped dung arid roadway. When the dung is eaten freely, the 
re should prove a successj;when grasshoppers are not so attract- 
| it will prove 4 failure. 
' It may not be out of place to remark in conclusion that stable 
iter from behind the stalls is even more attractive than dung and 
a8 proved a remarkable attractant when mixed with other material such 
s bran or sawdust, while grasshoppers have been observed to actually 
svour the earth in places where it has been left. Dry cow dung is 
o readily devowred. 
Norman Criddle, 
August 22, 1913. 
