176 



KuwANA (I.). Taisho rokunen no gaichukai. [Observations on 

 Injurious Insects and tlieir Control in 1917.] — Byochugai Zasslii 

 [Journal of Plant Protection, Japan], v, no, 1, January 1916, pp. 1-5. 

 This paper describes the principal injurious insects that made their 

 appearance in 1917. The gipsy moth [Lymantria dispar] appeared 

 in July in the Shimane prefecture and at first attacked black alder, 

 Quercus glanduUfera and Cryjdomeria, and finally orchards and rice- 

 fields. The immense numbers of caterpillars were also very trouble- 

 some in houses, etc. This pest also occurred in the Toyama prefecture 

 at the same time. Outbreaks on this scale have not been previously 

 recorded. The caterpillars of Euproctis flava and other species with 

 urticating hairs occurred in the Niigate prefecture in such numbers 

 as to be troublesome to troops in that locahty. At Mkko an 

 undetermined caterpillar defohated the beech trees. Schoenobius incer- 

 tellus (the three-brooded rice-borer) occurred in considerable numbers. 

 The first brood of Chilo simplex (two-brooded rice-borer) was less 

 numerous than usual, with the result that farmers neglected their 

 •control measures ; the second brood, in consequence, was exceptionally 

 abundant. Rice leaf-hoppers occurred at Kiushire and Shitoku Island 

 and did some damage in the autumn. A bud-fly, a species of Diplosis, 

 infesting mulberries appeared in several places and did considerable 

 injury to sericulture. As regards control and preventive measures in 

 1917, several pubhcations were issued regarding mosquitos, lice and 

 flies. Electric lights were utihsed to capture injurious insects as the 

 result of an agreement between the electric hght companies and farmers 

 in the Fukuoka and Yamaguchi prefectures. An investigation of 

 insects injurious to stored grain was organised at the Imperial Plant 

 Quarantine Station. The Tokyo Entomological Society was estab- 

 lished in April. 



LEGISLATION. 



Hecke (G. H.). Cotton Boll Weevil. Amendment no. 2 to Quarantine 



Order no. 26. — Mthly. Bull. Cal. State Commiss. Hortic, Sacra- 

 mento, vii, no. 1 & 2, January-February 1918, p. 110. 



As the cotton boll weevil {Anthonomus grandis, Boh.) is not known 

 to exist in the State of Arizona and the State has therefore declared 

 and is maintaining a quarantine against the entrance of this pest, it 

 is declared that until further orders cotton seed grown in the county 

 of Yuma, Arizona, may be imported into California, subject to the 

 following regulations : Persons contemplating the importing or 

 bringing into the State of California cotton seed grown in the county 

 of Yuma, Arizona, shall first make application for a permit to do so, 

 stating the name and address of the exporter, the locality where the 

 seed was grown, the amount of the importation and the name and 

 address of the importer in California, and must also obtain a certificate 

 in triplicate signed by the Entomologist of the State of Arizona, stating 

 the locality where the cotton seed was grown. 



All quarantine orders or regulations promulgated for the protection 

 of the cotton industry in the State of Cahfornia are also directed 

 against A. grandis, var. thurberiae and Pectinophora gossypiella (pink 

 bollworm). 



