-27- 
was effective but severely burned cantaloupe foliage.— Arant (21 , 26). 
Hiootine is ineffective, whereas rotenone is effective.— Mclndoo 
(585). 
Rotenone was recommended for use in hone and victory gardens.— 
Watson (657) J White and Doolittle (685) * 
Pyrethrum is inferior to rotenone but can be used with clay or 
talo and sulfur to protect fall-grown squash.— U. 5. Department of 
Agriculture (655 , p. 15). 
Diaphania nitidalis (Stoll), the pickleworm 
In Alabama cube appeared to be less effective than derris and 
tinbo in 1940 and 1942* Nine applications of a derris-talc-flour 
dust* containing 1 percent of rotenone, were effective in controlling 
this pest on late cantaloupes in 1941* Applications at the rate of 
54*2 pounds per acre were not significantly more effective than those 
at 14.7 pounds per acre. A mixture of derris, talc, flour, and 
Cuprocide (25; 64: 5: 6) was no more effective than the preceding mix- 
ture. On an average of 5,200 edible melons per acre were produced on 
5 plots dusted with derris and talc, as compared with 96 edible melons 
per acre on the 5 check plots. In 1942 derris and cube dusts contain- 
ing 1 percent of rotenone did not materially reduce infestation of 
the pickleworm until the dosage was increased to 20 pounds per acre 
per application. Twelve dustings at 17.5 pounds per acre did not give 
practical control, although worm-free melons were matured at the rate 
of 750 to 2,080 per aore on the dusted plots as compared with none on 
-the checks. Ten applications of 1-percent rotenone dust, applied at 
6-day intervals at 12.5 pounds per acre, gave satisfactory control on 
cucumbers during a period of favorable weather. Derris gave 95 per- 
cent control and cube 79 percent.— Arant (21, 25-26) . 
In Louisiana rotenone did not give as efficient control of the 
piekleworm as did cryolite.— Floyd and coworkers (189) . 
In Mississippi derris dust reduced infestations of the pickle- 
worm on cucumbers in 1940, but it was not determined whether the con- 
trol obtained justified the expense.— Lyle (372 ). 
Nicotine is ineffective while rotenone is effective against the 
pickleworm.— Mclndoo (383). 
