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Sanders (G. E.). The Canker Worm in Nova Scotia. — Proc. Entom. 

 Soc. Nova Scotia, Truro, no. 1, 3rd August 1915, pp. 91-92. 

 [Received 28th June 1916.] 



During 1915 a great many orchards in the AnnapoHs Valley were 

 defoliated by canker worms, Alsophila pometaria, Harr., being the most 

 common species. Tanglefoot bands provide an ideal method of 

 control, but where these are not used, spraying is necessary. As this 

 pest is difficult to poison after it is one-third grown, the only way to 

 control it is to use an excess of poison — 8 to 10 lb. of lead arsenate to 

 100 gals, of water — and cover the leaves thoroughly with the spray 

 when the young larvae are beginning to feed. 



Sanders (G. E.). The Tussock Moth in Nova Scotia.— Proc. Entoyru 

 Soc. Nova Scotia, Truro, no. 1, 3rd August 1915, pp. 93-94. 

 [Received 28th June 1916.] 



The white-marked tussock moth (HemerocamjKi leucostigma) is 

 common in Nova Scotia and periodically does extensive damage to 

 orchard and shade trees. As a serious outbreak appears to be possible, 

 growers are advised to examine the trees, pick off the winter egg- 

 masses and add plenty of poison to the last summer spray, or to the 

 spray to be apphed about 25th-30th June 1916. The eggs are deposited 

 on the old pupa-case and may be found among the twigs and branches, 

 of the tree. They are laid about 30th August and hatch about 27th 

 June the next year. The caterpillars reach maturity about 11th 

 August. 



GooDERHAM (C. B.). Parsnip Webworm {Depressaria heracleana). — 

 Froc. Entom. Soc. Nova Scotia, Truro, no. 1, 3rd August 1915,. 

 pp. 94-95. [Received 28th June 1916.] 



In Nova Scotia, the wild parsnip is attacked by Depressaria hera- 

 cleana (parsnip webworm), which has also seriously injured parsnips, 

 grown for seed. D. heracleana deposits its eggs singly on the leaves, 

 and stems of the plant during the second and third week of June. 

 They hatch in a few days and the young caterpillar immediately eats, 

 its way through the sheath which covers the seed head. When it 

 reaches the young flower bud inside, it commences to feed, and ties, 

 the flowers together mth silken threads. Feeding continues for about 

 four weeks, the seed being completely destroyed and the leaves often, 

 entirely eaten. About mid-July the nearly mature larva crawls down 

 the stem of the plant until it reaches the axil of a leaf, when it eats its 

 way into the hollow stem, and there it feeds for a few days before reach- 

 ing maturity. When mature, it spins a small silken cocoon in the 

 stem and enters the pupal state, which lasts for about two or three 

 weeks, the adults emerging about the second or third week in August. 

 It passes the winter as an adult. No satisfactory control has yet- 

 been worked out. The only way to check it is to cut off all affected 

 heads and destroy them. 



