432 



place in the autumn, the larvae emerging about a fortnight later, but 

 not beginning to feed till the first warm days of spring. Preventive 

 and remedial measures should take the form of the thorough drainage 

 of grass-land and the cleansing of water-courses, while the stimulation 

 of an affected crop by the apphcation of sodium nitrate or ammonium 

 sulphate may often more than repair the damage due to this pest. 



Hylemyia antiqua {Anthomyia ceparum) (onion fly) was also very 

 destructive, ovipositing upon the neck of the bulb in late April and May. 

 The eggs hatch quickly and the larvae eat the tissues of the bulb and 

 pupate. As the flies emerge in about 3 weeks there may sometimes be 

 three generations a year in the south of England. The pest hibernates 

 in the ground in the pupal stage, and consequently onions should not 

 be grown on infected land for some years. A dressing of soot applied 

 to the onion crop about the time the flies appear serves the double 

 purpose of repelling them by its odour and stimulating the growth of 

 the plants. 



Attacks of Aphids and red spider should be dealt with in their 

 initial stages by spraying with a solution composed of soft soap 1 lb., 

 quassia extract 1 lb., water 20 gals. 



Pear Tree Slug Worm. — Gardeners' Chronicle, London. Ixiv, no. 1650, 

 10th August 1918, p. 64. 



Eriocampoides annulipes, Klug {Selandria atra, Steph.) (pear-tree 

 sawfly) is a very common pest in some districts in England, attacking 

 cherry leaves as well as pear foliage. The eggs are laid just below the 

 upper surface of the leaves at the end of May or during June, the 

 larvae appearing shortly afterwards. They may be destroyed by two 

 or three applications of quicklime, at intervals of a day or two, or 

 infested trees may be sprayed with a solution of 2 lb. soft soap and 

 1 peck hme in 30 gals, water. These larvae moult after about 6 

 weeks and enter the ground to pupate, hibernating in their cocoons 

 till early the following summer. Hence a method of control which 

 confers a double benefit lies in removing the soil under the trees, to 

 a depth of about 4 inches, and replacing it with a similar amount of 

 clean rich soil. 



Gerault (A. A.). A New Species of Lepidiota from Northern Queens- 

 land. — Entomologist, London, li, no. 663, August 1918, p. 183. 



This note describes Lepidiota consobrina, sp. n., being one of the 

 undetermined species of these sugar-cane pests previously recorded 

 from Queensland [see this Review, Ser. A, vi, p. 166]. 



Roberts (A. W. R,). Turnip Flea-beetles — Wireworms. — Entomo- 

 logist, London, h, no. 663, August 1918, p. 187. 



Phyllotreta nejuorum, L., does not appear to be a common turnip 

 pest in the Harpenden district, Hertfordshire, P.undulafa, Kutsch., 

 and P. vittulu, Redt. , being the fiea-beetles usually found on turnips, 

 both there and in Westmoreland. 



Agriotes lineatus, L., is frequently referred to as one of the common 

 wireworms, but in Hertfordshire, Cheshire, North Staffordshire, 

 South Lancashire and Westmoreland, A. obscurus, L., is the most 



