98 



THE EEPOET OF THE 



Xo. 36 



formed. When these beetles are established in a section there is apparently no 

 practical method of control. But this is perhaps not unfortunate for it is usually 

 considered the best farm practice to take out one crop of clover from a rotation, and 

 the first crop is not commonly affected seriously, although clover planted in May 

 is sometimes attacked in numbers the following spring and the first crop injured. 

 Plowing under the sod as soon as the first crop is cut should always be practised 

 when this insect is common. Many of the larvae can thus be destroyed. 



The Cabbage maggot was more injurious this season than in other years, and 

 the onion maggot was present though not in great numbers. 



Anisota senatoria has been extremely numerous in the district between Ho wick 

 and Hemingford. Many oaks through that country were completely stripped last 

 season by hordes of these caterpillars. 



Fig. 21. 

 HyJastinus obscurus. 



Tunnel and eggs. 



Fig. 23. 

 HyJastinus obscurus. 

 Eggs in the egg- 

 niohes, with adult 

 beetle in the end of 

 the egg-tunnel. (Twice 

 enlarged.) 



Fig. 22. 

 Hylastinus obscurus. Tunnel and eggs. 



Grasshoppers were not so serious a pest in this province as in the last three 

 years, but still were very numerous in ^omo localities. In sections where the grass- 

 lioppers were very deslv.icine two or three years ago but were not numerous this 

 season, the blister-beetles, whose young feed upon grasshopper eggs, were reported 

 very plentiful. "Griddle mixture" and "Hojyper-catchers" would save many dollars 

 in the grass and grain fields of this province in grasshopper years. The Blister 

 beetles mentioned above, mostly M. unicolor, were injurious in a few places. Their 

 young, apparently, do much to control the grasshoppers, and the adults should not 

 be destroyed unless they are really doing injury. 



The Fall Web-Avorm which has been so abundant on shade and forest trees for 

 several years seems to be decreasing in numbers. The White-marked Tussock, which 

 was so injurious in Montreal recently, has not yet revived from the attack of its 

 parasites. 



