-49- 
Promecotheca papuana Csiki, the coconut leaf miner 
In tests with dusts in New Guinea lead arsenate gave the high- 
est mortality, while derris and pyrethrum gave very poor results.— 
Froggatt (203 ); Froggatt and O'Connor (205) . 
Psylliodes att enuata (Kooh), hop flea beetle in England 
This insect on hops can be controlled by derris dusts, applied 
in May.— Massee (400 , 401) . 
Psylliodes chrysocephala (L.), rape flea beetle in Europe 
In Holland results of tests on the adults with derris were in- 
conclusive.— Van Poeteren (469 , p. 47) • 
In East Holstein experiments with proprietary dusts against the 
adults on rape showed that a derris preparation was most effective, 
followed by a mixture of pyrethrum and derris.— Meuche (412) . 
In Germany K&mex was effective.— Frey (200 ) ; Kaufmann and Frey 
(337). 
Rhapidopalpa foveicollis Lucas, red melon beetle 
In Palestine the adults on melons may be controlled by two or 
three applications of a derris dust (0.75 percent of rotenone).— 
Anonymous (2). 
Unidentified flea beetles 
Flax in France can be protected from flea-beetle attacks by the 
use of rotenone powder.— Martin and Verrie (596 ) . 
In England a farmer did not lose a crop from the ravages of flea 
beetles for 10 years. On the first appearance of "the pests on a 
crop he dressed it with 3 pounds per acre of the best derris powder 
(not derris dust). The machine used to spread this small amount per 
acre was devised from an old horse rake.— 'Will ett (684) . 
Pyrethrum can be substituted for rotenone to control flea beetles 
in Connecticut.— Turner and Horsfall (606) . 
Rotenone is preferred for flea beetles on miscellaneous crops. 
Nicotine is ineffective. To control flea beetles, a 0.75-percent 
rotenone dust was recommended to replace the 1-percent dust commonly 
used.—TJ. S. Bureau of Entomology and Plant Quarantine (626, p. 5). 
