437 



€radwick (W.). Florida Citrus Spray. — Jl. Jamaica Agric. Soc, 

 Kingston, xxi, no. 5, May 1917, p. 185. [Received 17th July 1917.] 



The author records good results obtained on grape-fruit trees by 

 scrubbing and painting the larger stems in October with sulphate of 

 iron mixture, followed by spraying ^\ith Florida Citrus spray (a pro- 

 prietary article). The trees, which previous to this treatment had 

 been covered with scale-insects, were apparently quite free from them 

 when examined in December, but were covered with a crop of the 

 beneficial red-headed fungus {SpJMerostilbe coccophila) and were in a 

 perfectly healthy condition. 



CoPELAND (E. B.). Diseases and Pests of Sugar-Cane in the Philippines. 

 Philippine Agriculkirist & Forester, Los Banos, v, no. 10, February 

 1917, pp. 343-346. [Received 25th July 1917.] 



Insect enemies of cane include pests that attack the stem, the leaf 

 and the roots. The Lamellicorn beetles include a species of Heteronychus 

 similar to a destructive species found in Java and Hawaii. Holotrichia 

 vidua. Sharp, is found both in Java and the PhiUppines. Alissonotum 

 pauper, Burm., occurs only in the Philippines, although aUied 

 destructive species are found elsewhere. The larvae of the beetles 

 Apogonia and Adoretus have been found on newly-furrowed sugar 

 lands and probably damage the roots of sugar-cane, as they are known 

 to do elsewhere. Among moths, Diatraea vetwsata (striatalis) and 

 Scirpo]}haga are both pests of sugar-cane, as in Java. Several species 

 of termites attack newly- planted cane. Locusts are the most abundant 

 leaf-pests, the stretches of waste land throughout the Islands making 

 these insects difficult to control. Cane-hoppers include Perkinsiella 

 vastatrix, and the two endemic species, P. saccharivora and P. pseudo- 

 sinensis. Proutista moesta, Wastw., is dangerous owing to the fact that 

 rust and leaf-spot diseases so often accompany its attacks. Another 

 hopper, Brixiodes cariimta, occurs in small numbers. Tropidocephala 

 saccharivorella , a Formosan leaf Delphacid, has recently been found. 

 Oregma lanigera is a destructive plant louse found in almost all sugar 

 regions. The scale, Dactylopius sacchari, and the larvae of the moth, 

 Spodoptera niavritia, feed on the leaves. A number of other plant lice 

 have been found on sugar-cane but are not known to be destructive. A 

 species of Tetraneura attacking cane-roots is probably identical with a 

 species which destroys rice-roots in Java. Mole-crickets are known to 

 damage the roots of cane. As Saccharum spontaneum, which is either the 

 wild form of sugar-cane or a closely-allied species, is a common wild grass 

 in the Philippines, it is not surprising that the majority of the serious 

 pests of sugar-cane are to be found in the Islands. For the same 

 reason, however, the natural parasites of these pests are indigenous 

 to the Islands and prevent the depredations of the insects attaining 

 the importance which they otherwise would. Open planting and good 

 cultivation would certainly act as a great check to the pests of sugar- 

 cane in the Philippines. 



Headlee (T. J.). The Hessian Fly.— A''et(j Jersey Agric. Expt. StM., 

 New Brunswick, Circ. no. 46, 8 pp. [n. d.]. [Received 25th July 

 1917.] 



In this paper a popular account is given of the hfe-history of 



