11 



■on floating out the galls of T. scandens from contaminated wheat 

 showed that salt solutions containing 15 to 20 per cent, sodium chloride 

 were completely successful against this Nematode. Germination was 

 not at all affected after one day's immersion and hardly at all 

 after six. 



Potatoes were generally attacked by Aphids, Rhopalosiphum dianthi 

 and others. It has not yet been ascertained w^hether the death of 

 the tissues surrounding the puncture is due to a toxin introduced 

 by the Aphids or not. Infested plants were severely injured by 

 spraying with Burgund}' or Bordeaux mixtures, probably as a result 

 of the copper salts being introduced through the Aphid punctures. 

 Aphids also attacked turnips and swedes in late summer. Mangels 

 were seriously injured by a flea-beetle, Plectroscelis concinna. Pulse 

 crops were damaged, locally, by Aphis rumicis, and Sitona spp. were 

 particularly troublesome in the Midlands and East Anglia. Dusting 

 with a powder containing pyridine again proved effective, and where 

 the attack was not serious a light spraying with lead arsenate 

 prevented damage. 



Pasture and forage crops were injured by Tylencliits, but the out- 

 break of Charaeas graminis in the Peak district, Yorkshire, and the 

 northern counties has apparently subsided. 



A serious outbreak of Malacosoma {Clisiocainpa) neustria (lackej^ 

 moth) is recorded from Kent and other southern counties. In one 

 area over 1,000 acres of fruit were involved. Spraying was effective 

 when applied early, but once the trees were covered with webbing 

 ■only mechanical measures were of any use. Hyponomeuta padellus 

 was abnormally injurious. Tortricids were also numerous on apple ; 

 against them spraying with lead arsenate at double strength (1 lb. 

 paste to 10 gals, water) gave good results in some cases. Nicotine 

 proved generally effective against Capsids on apples. The woolly 

 aphis [Eriosoma lanigerum] is becoming increasingly abundant and 

 •destructive, and serious losses were also caused by Anfhonomus 

 j)omorum in all districts. Hyalopterits prtmi was the most injurious 

 Aphid on plums, especially in the southern half of the country. 

 Hoplocampa fidvicornis (plum sawfly) and Cydia {Opadia) funehrana 

 were unusually prevalent. 



The roots of strawberry plants were severely damaged by the larvae 

 ■of Phyllohiits, the loss being estimated in some cases at a ton of fruit 

 per acre. 



A list of all the insects recorded during the j-ear is given, arranged 

 under the various crops attacked. 



Henriksen (K. L.). Oversigt over de danske Coccidae. [A Review 

 of Danish Coccidae. "i — Ent. Mcdd., CopenJias,cii, xiii (2nd Ser. viii), 

 no. 7, 1921, pp. 305-317. 



The subject matter of this paper is indicated by its title. It con- 

 tains keys to the subfamilies and to some of the species concerned. 



Nechleba ( — ). Nonne in Bohmen. [The Nun Moth in Bohemia.] — 

 Oesterr. Forst- n. Jagdzeitg., xxxvi, 1918, pp. 207-208. (Abstract 

 in Centralbl. Bakt. Paras. Infeki., Jena, lite Abt., liii, no. 4-12, 

 31st March 1921, p. 189.) 



Even during the great outbreaks of the nun moth [Liparis monacha] 

 in Central Europe at the end of the last century no extensive injury 

 was done in the Piirglitzer forests in Bohemia. Since then, however, 



