DM 



by combining tobacco extract with the codling moth spray and 

 applying it just after the blossoms fall. Another Capsid bug, Neuro- 

 colpus nubilus was satisfactorily checked by spraying wdth a solution 

 of 1 lb. Sunhght soap to 10 gals, rain-water. 



Other pests destructive locally were Aphis gossypii (melon aphis). 

 CJwrtophila {Pegomyia) vicina (beet leaf- miner), C. (P.) fusiceps (corn 

 seed-maggot), Ceramica (Mamestra) picta (zebra caterpillar), Eulia 

 juglandana (hickory leaf-roller), Malacosoma americana (American 

 tent-caterpillar) and Fenusa {Metallus) bethunei (blackberry leaf-miner). 



Gibson (A.). Three Important Greenhouse Pests recently introduced 

 into Canada. — 47th Ann. Rept. Entom. Soc. Ontario for 1910, 

 Toronto, 1917, pp. 111-122, 2 plates. [Received 12th October 

 1917.] 



The Noctuid, Eriopus floridensis, Gn., was first recorded as an 

 economic pest in 1908, when it damaged greenhouse ferns in the 

 United States to the extent of £800. Its first appearance in Canada 

 was in 1915. The caterpillars being very active feeders, soon 

 strip fern fronds and even eat into the more tender parts of the stems. 

 A successful remedy has been spraying with a solution composed of 

 fresh pyrethrum insect powder 1 oz., common laundry soap \ oz., 

 and water 1 gal., applied once a week for 5 or 6 weeks. Satisfactory 

 results were also obtained by applying dry pyrethrum powder by 

 means of a bellows. Fumigation with tobacco smoke, using 2 lb. 

 tobacco stems to 16,000 cubic ft., and handpicking were partly 

 successful, but spraying with arsenate of lead was not so, a white 

 deposit remaining that was difficult to remove. 



Diarikronomyia hypogaea, Lw. (chrysanthemum midge) is a widely 

 distributed pest in N. America and has also been recorded from central 

 and southern Europe. It injures the plants by causing galls and 

 malformations of the stem. It is held in check by fumigating the 

 greenhouse with hydrocyanic acid gas about once a month, which 

 destroys the adults. The cuttings, when potted, should be dipped 

 in nicotine solution, | oz. to 1 gal. water, and during July and August 

 the plants should be sprayed with the same solution every three weeks. 

 The house must be subsequently fumigated with tobacco every ten 

 days. 



Neocerata (Dasyneura) rhodophaga., Coq. (rose midge) was first 

 recorded in America in 1886, and in Canada in 1914, and is one of the 

 worst pests of roses. Measures recommended against it are the grow- 

 ing of another crop, such as carnations, for one year, and the thorough 

 cleaning of the house in midwinter while the insects are dormant 

 in the soil ; this entails the removal and destruction of the plants, 

 the removal and deep burial at a distance of the soil in which they 

 have been growm, and the spraying of the floors and benches with 

 kerosene emulsion. 



. KiNGSMiLL (G. F.). Sweetened Poison Mixtures. — 47th Ann. Rept. 



~-\ Beekeepers'' Assoc. Prov. Ontario 1916, Toronto, 1917, pp. 61-62. 



[Received 12th October 1917.] 



The serious outbreaks of cutworms and grasshoppers during 1915 

 having necessitated the use of sweetened poison-baits, the question 



