ead Lee 
“Sand Land Wireworm Control 
“J. N. Tenhet, Fairfax, $.C., states that the outstanding fact 're-_ 
vealed by the’ past year's experimentation indicates that a "35 to 40 day 
period of: cléan cultivation in every instancé resulted in 50 to 60 percent 
reduction in wireworm populations," 
“Arsenical Residues on Cabbage 
‘Extensive experiments on ‘substi tutes for arsenicals in the control 
of ‘cabbage worms have been started on the fell crop of cabbage at Chad- 
bourn, N. C., Charleston, S. C., and Baton Rouge, Lu. Because of drought 
considerable difficulty has been ee in Spat eit a stand of cab- 
bage. The hurricane which occurred off the coast of Charleston also 
caused considerable damage to experimental See of squash for pickle 
worm and i nelon worm control, as well as to the cabbage crop. 
j Experiments on Tobacco Insecticides 
‘A surplus of Low-gr ade tobacco now on hand has stimulated a renewed 
interest in tobacco as an insecticide. Large-scale field tests will be 
conducted at the Charleston laboratory during the coming winter and 
Spring, with various tobacco products, in order to determine definitely 
whether these materials are of value in the protection of the cabbage crop 
from damage by various species of insects. J. R. Weedon has been trans- 
ferrad to Charleston, Ss Gey from the’ Norfolk, Va., laboratory to assist 
io carrying on UALS work. 
Erroneous Report of Arsenical Residue Poisoning in 
Galifornia 
R. #, Campbell of the Alhambra, Calif., laboratory r, reports that 
"extensive newspaper publicity. was given to a series of food-poisoning 
cases early in ‘September, Althoug gh later investigations proved absolute- 
ly to the contrary, health officers and doctors announced that the poison- 
ing was caused by arsenical deposits on vegetables. The wide publicity 
had a detrimental effect oa the sale of vegetables and agricultural 
cuthbrities tock measuiés to prevent a recurre once. .Five conferences were 
attended, at which all anglos of the matter were gcne into thoroughly and 
plans were drawn up tc be presented to growers, growers ' organizations, 
insecticide dealers, buyers, and shippers, so that insects. on vegetables 
might be controlled and possibilities of arsenical residues avoided. These 
plans were primarily emergency weasures to cover the present critical sit- 
uation, but also included the ides that methods of insect control should: 
be developed so us’ to’ avoid entirely the use of arsenicals or similar 
poisons on ‘Leafy vegetables. Several field meetings were: attended where: , 
thé informs tion was given directly to’ the fermerds ©) 150\.) aaa . 
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