96 



time enemies of the wheat plant also showed up again last year in two 

 or three parts in Canada, namely, the wheat midge {Dij)losls tritici). 

 Of mill insects the Mediterranean flour moth continues to be trou- 

 blesome, and an interesting occurrence was found a few miles from 

 Ottawa, where the insect in a badh^ infested mill was abundantl}^ par- 

 asitized by a small Lhnneria, probably Z. fagitiva. The ordinar}'^ 

 meal moth {Pyralis farinalis) was the author of considerable loss in 

 stored grain at one locality in Manitoba. 



FODDER PLANTS. 



The clover weevil {Phytonoimis j)unctatu,s) has as usual been found in 

 one or two places along Lake Ontario this spring, but, as has always 

 been the case with us in Canada, was quickly wiped out by the fungus 

 Entom,o2)hthora phytonomi. A far more general and destructive 

 insect to clover with us is the lesser clover weevil {P. nigrirostris). 

 Three or four occurrences have been reported in the Province of 

 Ontario of the clover-root borer {Hylastinus obseurns), but the loss 

 has not been great. 



TREES AND SHRUBS. 



Probably the items of the greatest interest under this heading were 

 the abundant occurrence in Manitoba and the Northwest of some 

 insect enemies of the ash-leaved maple {Negundo aceroides)^ the 

 Negundo gall gnat. The fleshy galls of a cecidomyiid-like larva were 

 found in enormous numbers on the 3"Oung leaves in June. Wherever 

 this tree had been planted for shade or ornament throughout Mani- 

 toba and as far west as Indian Head, the trees were much disfigured. 

 There appears to be only one brood in the year. Occurring on the 

 same trees were the larvas of the cankerworm {Ahoijhila j)ometarki)^ 

 which in many places stripped the trees of leaves. This is a con- 

 stanly recurring enemy of the ash-leaved maple in Manitoba. Another 

 serious enemy of this much burdened tree is the aphid ( Cliaitophorm 

 negundinis), which renders the trees filthy by reason of its copious 

 honey dew and the black fungus which grows upon it, Fumago. The 

 larva of a small moth also causes swelling in the twigs while green 

 and subsequently most of these twigs are permanently injured. The 

 moth was identified by Dr. Riley as Proteoteras cescularia. 



There are of course many other insects which might be mentioned, 

 but these are the most interesting I can think of at the present 

 moment. 



All the papers having been presented, the following discussions took 

 place: 



Mr. Woodworth called attention to a method of combating the cod- 

 ling moth frequently used in California. He stated that the California 

 o-rowers at the time of cultivating their trees in the fall frequently 



