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Anthonomus "prri Koll. 
Etablissementp Roteni?, in 1938 reported in a. letter to R. C. Roark 
that "Anthonomus cinctus " on cauliflovrrr v?,s killed by a product con- 
taining 12 percont of pov/dered Lonchoc^r-pus nicou root (of 6 percent 
rotenone content) axid ^S pprc^nt of talcuni, and on pe^^r tr^op was 
mitigatc-d by thi? product. [According to I^hiesebcck^ this species ia 
probably A. cinctus Redt,, a synonym of Anthonomus pyri Eollrr.] 
Nlklas/ in 1*^39 report-d that rotenone at O.U-percent concentration 
as a spray killed 90 percc^nt of Anthonomus pyri adults after 1 day ^nd 
100 percent after 2 days. 
Anthonomus rubi (Hbst.), a strpvberry blossom vrcvil 
Derris spr-y w^s ineffective. — Spoon ( 332 ) in 19"^!^. 
Jary and Austin ( 225 ) in 193? rerortnd thn.t field trials vrith dorris 
dust (0,5 percent of rotenone) v/ere continued in Sussex for tho control 
of a strawberry blossom vcvil. Tv/o ser>arate plots of str^'Vrberries 
were used, one receiving 3 applications of dust and tho oth'r 10 applica- 
tiona, at 2- to 3-day intervals. The amo-mt of dust used w?s at the 
T^tc- of approyi lately 11 pounds per acre for each applicrtim. An un- 
treated plot, separated from the re^mainder by a la,rg-^ hawthorn hedge^ 
was used as a ro^^'ghly co iparable control plot, ^^o reduction in the 
nuijbers cf attac'--ed buds could b^^ detected, all plots showing an average 
of about 30 percent, and th^s result corroborates the information ob- 
tpined in previous years, 
Jary (22U) in 1937 reported the results of 3 years' tests of 
insecticides ag^^inst the stra.wberry blossom weevil, under insectary 
conditions in ^nglnnd. Dcrris dusts containi-g from 0.2 to 0.5 per- 
cent of rotenon;- anc\ a finely groun~. purc-derris root having an ether- 
extract valur of about 20 percent g^^^c poor results, 
Jancke ( 232 ) in 193^ reported th^t tests with several proprietary 
ineecticidp.l dusts in Kay 1937 against Anthonomus rubi on stravrberr.^' 
in a heavily infested field near Spoyor shov.'od that the best control 
(?,Z percent) vms given by a srngle application of p dcrris dust, which 
was more effective than others containing mixtures of pyrpthrum and 
derris, or pyrethru'i alcne. Dusting should be carried out when tho 
first injured blossoms are observed, 
Anthonomus sign^tus Say, the strawberry weevil 
W. A. Thomas ( 271 ) in 193h reported that n strawberry plot treated 
vrith f) dust cont-ining 0.5 p'^rcent of rotenone r-'nked first in production 
of markrtable fruit. Th.<^ most satisfactory material for reducing the 
number of weevil-cut buds was a mixture of 1 part of calcium arsenate 
and 5 p«^rts of stilfur. These mat-rinls were tested for the control of 
the str?5vrberry weevil at Chadbourn, F. C, 
