240 FUMIGATION METHODS 
nursery stock. ‘The San José scale has only secured a 
foothold in a few localities, and even there has been 
confined to comparatively small areas. So far as is 
known, there is no San José scale within several miles 
of any of our nurseries. In one or two instances fumi- 
gation has been required where the black peach aphis 
has been found ina nursery, and under our present law 
it will be possible to compel nurserymen to fumigate 
their stock before it is sent out if the scale is found in 
a nursery, or in such close proximity that there isa 
possibility that the trees may be infested, even though 
careful inspection fails to reveal its presence. In case 
the scale continues to spread a move will be made to 
secure a compulsory fumigating law that will apply to 
all nurseries. At the present time it seems the cheapest 
and most reliable method of treating nursery stock, as 
well as for the destruction of many insects that are found 
in buildings.—Prof. L. R. Tarr, Michigan Agricul- 
tural College. 
Urges law in Mississippi.—There has never been 
anything done with hydrocyanic acid gas in this state. 
We have no laws on fumigation of nursery stock, but 
I have been urging laws, and think I shall present the 
matter to the legislature.—Prof. GLENN W. HERRICK, 
Entomologist Mississippi Experiment Station. 
Successful mill fumigation in Missourt.—Some nur- 
series have erected a fumigating house and have fumi- 
gated both the material entering and leaving the 
nursery, but no one knows that it ever had the San 
José scale in any case. Some greenhouses have also 
been fumigated, and always with success, but of course 
