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Clover Insects. — There was little clover at Macdonald Colleg"e last season 

 owing to the unfavorable conditions during the preceding winter. In the sod 

 lands, however, in which clovers and grasses had been grown mixed, considerable 

 clover survived. This was badly afifected by three pests, the Clover Chalcid 

 (Bruchophagus funebris), the clover-root Borer (Hylastinus obscuriis), and the 

 clover mite (Bryobia pratensis) . 



Agriotes mancus (Wheat Wireworm) ; a, adult beetle ; b, wireworm or larva ; c, last segment of larva. 



The common red, and mammoth red clover are the only ones in the seed of 

 which the chalcid larvae were found. The adults were observed flying about the 

 heads of the alsike clover but no grubs were obtained from this variety. The 

 grubs were first observed in the seed of the red clover in July. At that time, I 

 could not find any adults about the heads. In the laboratory adults began to 

 emerge abou the middle of July, and after that, and throughout the greater part 

 of August, they were present in large numbers depositing their eggs in the young 

 seeds. In the small experimental plots of the Cereal Husbandry Department 

 there was considerable loss of seed caused by this insect. In many heads exam- 

 ined there was complete failure to ripen seed although most of the flowers had 

 been fertilized. The number of heads in which over 50 p.c. of the seed was eaten 

 was comparatively large. If the growing of clover seed in quantity was contem- 

 plated, this insect would be one of the most serious problems. 



The Clover-root Borer was especially destructive to the old plants in the 

 sod lands. The Clover ]Mite was very abundant during last summer. Areas affect- 

 ed could be readily seen, as the leaves of the plants turned yellow and wilted, the 

 plants showing abundant signs of impaired vigour. 



The Clover-leaf Midge {Dasyneura trifolu) was also found quite common- 

 ly on the leaves of the white clover. From it a small chalcid parasite was reared. 



flea-Beetles. — There were four species of flea-beetles conspicuously no- 



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