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FuLLAWAY (D. T.). Division of Entomology. — Hawaiian Forester <& 

 Agriculturist, Honolulu, xiv, nos. 2 & 3. February & March 1917, 

 pp. 43 & 69-70. [Received IGth May 1917.] 



During the month of January the following parasites were reared 

 and distributed: Opius fletcJieri (melon fly parasite), 1,442 females 

 and 1,138 males; 400 Tetrastichus ; 63 Galesus silvestrii ; and 6,511 

 corn leaf-hopper egg-parasites. There is now definite proof of the 

 establishment of the melon fly parasite in Hawaii, the parasites 

 having been recovered several times from infested wild cucurbitaceous 

 fruits. 



Durmg February the insectarr produced and distributed 985 females 

 and 675 males of Opius fletcheri ; 250 Dirldnus ; 200 Tetrastichus ; 

 195 females and 77 males of Dirhimis tryoni ; 60 females and 45 

 males of Opius humilis ; and 2,275 corn leaf-hopper egg- para sites. 



Allen (A. A.). The Warblers. — Amer. Forestry, Washington, D.C., 

 xxiii, no. 280, April 1917, pp. 221-225, 10 figs. 



The economic importance of the migratory warblers in forests and 

 woodlands in the United States is very great and the necessity for 

 legislation to protect them can hardly be over-emphasised. One 

 palm-warbler was observed to catch insects at the rate of from 40-60 

 a minute during a space of four hours, making a total of nearly 9,500, 

 while another species feeding upon Aphids on a grey birch destroyed 

 89 in a minute and 3,500 in 40 minutes. The destruction of cater- 

 pillars is on the same scale, one warbler destroying 22 gipsy moth 

 {Lyniantria dispar) caterpillars in 14 minutes, another 28 browntail 

 {Euprocfis chrysorrhoea) caterpillars in 12 minutes, and a third 42 

 in 30 minutes. 



Levison (J. J.). Spraying Work of this Season. — Amer. Forestry, 

 Washington, D.C., xxiii, no. 280, April 1917, pp. 236-238, 3 figs. 



The advice given for spraying m May is as follows :- — (1) For scale 

 insects such as the oyster-shell scale [Lepidosaphes uhni] and scurfy 

 scale [Chionaspis furfura], either spray while the tree is dormant with 

 kerosene emulsion at the rate of 1 gallon to 10 gallons of water, 

 or later, after the young have emerged, with 1 gallon to 25 of water. 

 In the case of scalecide, 1 gallon to 15 gallons of water should be used 

 before the buds open, and 1 to 40 afterwards. If fish-oil soap is used, 

 it should be at the rate of 1 pound to 10 U.S. gallons of water. (2) For 

 red spider and Aphids, 1 pound of fish-oil soap to 5 U.S. gallons of water 

 may be used for evergreens and the underside of leaves of beech and 

 Norway maples. (3) For leaf-eating insects such as the elm leaf 

 beetle [Galerucella luteola] and the caterpillars of the tussock moth 

 [Hemerocampa] spray mth arsenate of lead at the rate of 1 pound 

 to 12 U.S. gallons of water. 



The tulip scale [Toumeyella liriodendri] -should be removed with 

 a coarse hair brush, the insects being collected and burnt. The 

 infested branches should then be washed with a solution of soap and 

 water, or kerosene emulsion, 1 part to 10 parts of water. 



