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TCEBSTER, R. L. (1707) 
1934. THE STATUS OF CODLING-MOTH CONTROL WITH INSECTICIDES. IT. Y. State 
Hort. Soc. Proc. 79th Ann. Meeting, pp. 33-36. [Abstract in 
Chem. Abs. 28: 3827. 1934.] 
Numerous tests conducted in Washington State indicated that the 
value of lead arsenate substitutes for codling-moth control is in the 
decreasing order nicotine-oil combinations, fluorine compounds (es- 
pecially cryolite), manganese arsenate, and calcium arsenate. 
• (1708) 
1954. THE STATUS 0? COLLING MOTH CONTROL T7ITH INSECTICIDES. Jour. Econ. 
Snt. 27: 134-139. 
An attempt was made to rank insecticides, other than lead 
arsenate, so far as their value for codling moth control was concerned, 
and it was generally agreed that nicotine-oil would rate first. 
Owing to difficulty in removing lead— arsenate residue in Washing- 
ton State, the writer is reluctant to advise the use of mineral oil in 
late cover sprays cither with nicotine or lead arsenate. 
WEBSTER, R.' L., and MARSHALL, J. (1709) 
1934. THE POSITION CE NICOTINE IN CODLING MOTH CONTROL. Jour. Econ. Snt, 
27: 873-878. 
In a spray schedule of oil-nicotine in the last three cover 
applications, oil-lead arsenate in second cover, lead arsenate 3-100 
in remaining cover sprays, codling moth control was greatly improved 
over lead arsenate 3-100 for six cover sprays on Delicious in 1933. 
The use of mineral oil following lead arsenate made lead residue removal 
more difficult than when lead arsenate was used alone. 
WHITE, TT. B. (1710) 
1934. THE CURRENT SEASON'S EXPERIENCE IN ENFORCING SPRAY RESIDUE TOLER- 
ANCES. Jour. Econ. Ent . 27: 125-133. 
The author, who is employed \>y the U. S. Food and Drag Administra- 
tion, says the following (p. 132): "Whether nicotine and oil or sonfe of 
the other organic insecticides will completely displace lead arsenate in 
the control of late broods of the codling moth is not certain." He pre- 
dicts that the consumer and agencies which protect his health are not go- 
ing to accept with complacence the exploitation of new insecticides until 
these materials are tested by absolutely disinterested scientists to es- 
tablish, as conclusively as can be done, the probable or possible effect 
on the human health of the quantities of these insecticides which unavoid- 
ably remain on the product at the time of consumption. 
