452 



The same pest has been reported from Berlin by v. Lengerken, 

 who names it M. beyrodti [R.A.E., A, ix, 67], being apparently 

 unaware of Champion's paper. 



In the present case the infestation was completely checked by 

 })icking most of the infested leaves and by enclosing the rest in 

 waxed paper. By this means the adults were secured on emergence. 



lepenspintkevers. [Elm Sap-wood Beetles.] — Phytopath. Dicmt, 

 Wagcningen, \^lugschr. 35, March 1921 , 3 pp., 2 figs. ; also Tijdschr. 

 Plantenziekten, Wageningen, xxvii, no. 6, June 1921, pp. 12-1 A, 

 2 figs. 



There are two species of these beetles infesting elms, Scolytns (Eccop- 

 togaster) scolytus and the smaller S. (E.) multistriatus. 



The adults are on the wing in May and June. The female bores 

 into the bark and mating occurs in the hole. The female then makes 

 a vertical mine, on the sides of which the eggs are laid ; the larval 

 galleries run horizontally from the parent mine. 5. midti striates 

 makes a longer parent mine than the larger species. Although older 

 and sickly trees are usually infested, young and vigorous trees may be 

 attacked. 



One remedy consists in removing the bark in winter and burning 

 it. Slight infestation may be checked by painting with carbolineum 

 about the middle of May ; for this purpose a 20 per cent, solution of 

 soluble carbolineum is convenient. This coating appears to prevent 

 the beetles from boring into the trunks, and it has even been said 

 that contact with a treated surface kills them, but this requires 

 confirmation. 



RosTRUp (S.). Gulerods-Krusesyge, foraarsaget af Gulerods- 



Bladloppen {Trioza viridida). [Carrot Leaf Curl, caused by T. 

 viridula.] — 143. Beretning fra Statens Fors^gsvirksomhed i 

 Plantekultur ; also Tidsskr. Planteavl, Copenhagen, xxvii, 1921, 

 pp. 617-630, 4 figs. (With an English Summary). 



Eor many years carrot leaf curl has caused great damage in Den- 

 mark. Since the first ten j^ears of this century, when it was confined 

 to Zealand and practically rendered carrot growing impossible there, 

 it has spread further, and particularly in 1920, has done much damage 

 in Jutland. The disease appears after infestation by the carrot 

 Psyllid, Trioza viridula. 



T. viridula hibernates in the adult stage. ' In the early summer it 

 attacks the plants and oviposits on them. During July and August 

 the clinging larvae and nymphs feed on the leaves. Leaf curl begins 

 when the first leaves have appeared on the plants. 



Spraying with a solution of tobacco as soon as the disease appears 

 has been found effective. 



Nakayama (S.). An Enumeration o£ the Japanese Aphelininae, with 

 Descriptions of two new ^v^cxes.— Philippine Jl. Sci., Manila, 

 xviii, no. 1, Januarv 1921, pp. 97-101, 1 plate. [Received 

 20th July 1921.] 



The fourteen known species of Japanese Aphelininae are : Alberus 

 perspeciosus, Gir., from Diaspis {Aulacaspis) pcntagona, Targ. ; 

 Apheliniis fuficipennis, How., from Aspidioius pcrniciosus, Comst., 

 and Chionaspis sp. ; A. japonicus, Ashm. ; A. viytilaspidis, Le B, 



