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molasses, 2 quarts ; water, 2| to 3 gals. Other insects reported were, 

 the pea Bruchid {Bruchus pisorum, L.), the ash-grey blister-beetle 

 {Macrohasis unicolor, Kirby), the carrot rust fly {Psila rosae, ¥.), the 

 pea aphis, Acyrthosiphon {Macrosipkum) pisi, Kalt., the potato aphis 

 {M. sohnifolii, Ashm.), the grain aphis {M. granarium, Kirby), which 

 however was attacked by parasites and predaceous insects so that 

 little injury resulted, the red turnip beetle [Entomoscelis adonidis, F.), 

 the 12-spotted asparagus beetle {Crioceris V2-puncMa, L.), and the 

 common asparagus beetle {C. ospara^i, L.), as well as a new cabbage 

 pest, Tortrix wdhlhomiana var. Tr. vigaureana {ohraceana, Gibson). 



The most destructive garden and greenhouse pests in 1915-16 were : — 

 Otiorrliynchiis sulcatus, F. (black vine- weevil) on cyclamens, Phytomyza 

 chrysonthemi, Kowarz (marguerite leaf-miner), Pionea (Phlyctaenia) 

 rubigalis, Gn. (greenhouse leaf-tier) on cinerarias, marguerites, 

 chrysanthemums and snapdragons, Diarthronomyia hypogaea, Lw. 

 (chr}^santhemum midge), Rhynchites bicolor, F. (black-snouted rose 

 weevil), Poecilocapsus lineatus, F. (four-lined leaf-bug) on asters and 

 dahlias, and Systena. frontalis, F. (red-headed flea-beetle) on asters and 

 chrysanthemums. 



The chief insects affecting fruit crops were :- — In Quebec, Anthonomiis 

 quadrigibbns (apple curculio) ; in Ontario. Aphis sorbi, A. pomi, 

 A. ave7iae, and the apple-maggot {Rhagoletis pnmonelh), control investi- 

 gations on which were continued. Observations were also made on 

 Psylla- pyricola (pear psylla), Myziis cerasi (cherry aphis), and Byturus 

 unicolor (raspberry beetle). In British Columbia there was a serious 

 outbreak of the pear thrips, Taeniothrips inconsegrtens (pyri), and the 

 occurrence of the currant bud-mite {Eriophyes ribis) was recorded. 



Among the insects attacking forest and shade trees, Chermes cooleyi, 

 Gill. (Sitka spruce gall aphis), and a new variety C. cooleyi var. coweni. 

 Gill., were studied in British Columbia, as well as Aphis abietina, Walk. 

 (Sitka spruce green aphis), and Chermes fnmtectus, Dreyf. (western 

 hemlock woolly aphis), the latter being found to be heavily attacked 

 by Syrphid and Coccinellid larvae. Dendroclonus obesus, Lee. (Sitka 

 spruce bark beetle), was effectively controlled, though rapid breeding 

 and consequent spread took place if the destruction of refuse from 

 cuttings or ^\^ndfalls was neglected. Observations were made on the 

 Buprestid borer belonging to the genus Trachekele, an insect very 

 destructive to green timber. In Alberta, studies were made of 

 Dendroctonus borealis, Hopk., in white spruce, D. svmpilex, in larch, an 

 undescribed species of Dryocoetes killing large balsams, and the very 

 destructive wood-borer, Monochmmts (Monohmnnms) sp. closely 

 allied to M. scutellatus, resulting in the discovery of inexpensive and 

 effective methods of control. In New Brunswick, Tortrix {Harmologa) 

 fumiferana (spruce bud worm) was abundant, but controlled by 

 natural factors. The larch sawfly, Lygaeonematus (Nematus) erichsoni, 

 was reported to be spreading westwards to Saskatchewan. The negundo 

 aphis {Chaitophorus negiindinis) and the poplar leaf-beetle {Galerucella 

 decora) were abundant and caused wide-spread injuries. 



In Nova Scotia the life-histories of Cacoecia (Archips) rosaceana. 

 Harr., and Olethreutes consanguinana, Wlsm., were worked out, and 

 and further work was done on the eye-spotted bud moth Eucosma 

 {Spilonota) ocellana, Schiff. The lesser bud moth (Recurvaria nanella, 

 Hb.) was found in Nova Scotia for the first time. The fall cankerworm 



