. Ontario Sessional Papers, 1898-99, . Fig. 3. Larch Saw-Fly-(a) Caterpillar; (6) Adult Saw-Fly. Jarring young shade trees has had good results, as the larvae cannot climb trees. Prob-ably parasites are our best friends, and we must look to them to keep the Saw Fly incheck in our great swamps. Another favorable feature is the great vitality of the tama-rac, which often quickly revives after complete defoliation. 12 61 Victoria. Sessional Papers (No. 18).

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