155 



in oats ; Tipula paludosa, Meig., which attacked spring-sown cereals, 

 especially oats, as well as autumn-sown wheat and rye ; T. vernalis, 

 Meig. ; Hylemyia coarctata, Fall., which was apparently less destructive 

 than in 1917 ; Chlorops taeniopus, Meig. ; Oscinella {Oscinis) Jrit, L., 

 which was less abundant than usual ; wireworms, which were very 

 abundant ; Phylloireta vittula, Redt., which caused severe damage 

 to barley in May and June and was also found on oats, young maize 

 and Agrostis alba ; and Tylenchiis scandens, Schneid., which was 

 unusually abundant. 



Potatoes were attacked by Calocoris norvegicus, Gmel. {bipimctatus,. 

 L.), Capsid bugs, Lygus spp., and Hydroecia micacea, Esp. Swedes 

 were injured by Agrotis spp. Other pests of root crops include : 

 Chaetocnema {Plectroscelis) concinna, Marsh., on young mangel 

 plants ; Phyllotreta nemorum, L., and P. undidata, Kutsch. 



Pests of pulse crops include : Bruchus nifimanus. Boh., which 

 was found attacking 30 per cent, of the bean crop in Cambridgeshire 

 and 90 per cent, in Bedfordshire ; B. pisormn, L. {pisi, L.) ; B. affinis, 

 Frol., on broad beans ; B. obtectus, Say, on Canadian wonder beans ; 

 Sitones lineatus, L., which chiefly attacked late-sown peas and against 

 which a wash consisting of 2 oz. washing soda, 1 oz. carbolic soft 

 soap and 1 gal. water applied to the ground round the plants proved 

 successful. 



Anthonomus pomormn, L. (apple-blossom weevil) was particularly 

 abundant, but was checked in several cases by the application of a 

 lime and salt spray when the buds were bursting. Black currant 

 buds were seriously infested by a mite, Eriophjes ribis, Nal. 



Owing to the apparent shortage of lead arsenate, alternative poisons 

 for mandibulate insects were tested, including barium chloride, 

 calcium arsenate and pyridine, but according to F. V. Theobald these 

 substitutes are useless. Barium chloride, 2 lb. to 10 gals, of water, 

 was only effective against the larvae of the ermine moths, Hypono- 

 meula spp. Tests with calcium arsenate by F. R. Petherbridge and 

 with barium chloride by F. J. Chittenden show that both these insec- 

 ticides give rise to a considerable degree of scorching. 



A general list of all insects and fungi reported for the year is given 

 arranged under the various crops attacked. 



Tryon (H.). Report of the Entomologist and Vegetable Pathologist. 

 ■ — Queensland Ann. Rept. Dept. Agric. & Stock for the Year 1916- 

 1917, Brisbane, 1917, pp. 49-63. [Received 11th February 1920.] 



The chief pests recorded for the year under review include : Hetero 

 dera radicicola which caused root-gall on sugar-cane, potatoes, 

 tomatoes, passion vine and grape-vine. Maize was attacked by 

 Cirphis {Leucania) unipuncta (army worm), Dichocrocis punctiferalis 

 (smaller maize borer), Calandra oryzae, Scarabaeids, Elaterids, Gryllo- 

 talpa africana and Forficulids, Wheat was injured by Elaterids, 

 Calandra oryzae and Sitotroga cereallela. AulacopJiora olivieri occurred 

 in several instances on pumpkins. Haltica solani (potato flea-beetle) 

 and Phthorimaea operculella caused injury to potatoes. 



Cotton pests include : Agrotis sp. ; Dichocrocis punctiferalis 

 (Queensland bollworm no. 1) ; Earias insulana (Queensland boll- 

 worm no. 2) ; grasshoppers ; Tectocoris banJcsi (shield bug) ; Dysdercus 



(664) b2 



