169 



is considered, although the results should be taken into account 

 over a period of years. The orchard tested was an old one where 

 infestation was rendering the trees worthless. In most cases the 

 trees bloomed heavily, but the blossoms were generally injured before 

 the fruit was formed, or, if it set, it was punctured by the bug until 

 it fell or became deformed. The damage to the smaller twigs was 

 also very apparent, while much of the young growth had been Idlled out^ 

 right. Younger trees of mixed varieties in another part of "the orchard 

 were also being attacked when the entire orchard was sprayed with 

 1 pint Blackleaf 40 to 100 gals. In the spray immediately before the 

 blossoms opened,* this was combined with hme-sulphur and calcium 

 arsenate. In the after-blossom spray, the fungicide was sodium 

 sulphide and the arsenical poison was omitted. Although there was 

 some delay in spraying the older trees, a fair measure of control was 

 obtained, while in the younger trees where the spray was promptly 

 applied the bugs were practically eliminated. Compared with the 

 yield that might have been expected from previous years' production 

 and with the crop for the entire valley, the theoretical crop from the 

 demonstration orchard should have been 393 barrels, but in point of 

 fact it was actually 1,469 barrels. Tables show a comparison between 

 the crop of the experimental orchard and that of the neighbouring 

 valley and the percentage of diiTerent grades of all varieties both in 

 the valley and in the experimental orchard. In 1918, the experimental 

 orchard was not sprayed for the bug. Examination showed that in 

 the older and larger trees there was still considerable infestation, 

 though not as severe as formerly ; while in the younger trees, where the 

 best spraying had been done, the pest could only be found by searching 

 for it. The value of thorough and timely work for the future 

 year's crop is thus further emphasised. 



NicoLAY (A. S.) & Weiss (H. B.). Notes on Chalepus rubra, Web., in 

 New Jersey. — Canadian Entomologist, London, Onf.. 1, no. 12, 

 December 1918, pp. 398-400, 1 plate. 



The Hispid, Chalepus rubra, Web., has been previously recorded as 

 attacking locust, basswood, oak and soft maple, while the larvae have 

 been known to mine the leaves of white oak, apple and linden. 

 Additional food-plants recorded for the adult beetles are white birch, 

 hornbeam, cherry, juneberry and Pyrus a,rbutifolia, as weU as apple, 

 choke-cherry and shadbush. In New Jersey the mines are found 

 in the leaves of various species of oak, all the parenchyma being 

 eaten and showing a white elongate discoloration, generally at the 

 edge of the leaf. During late June and early July the larva can easily 

 be found in the mines. The pupal stage occurs during the last week 

 in July and earl}?- August, the beetles emerging during the second 

 week of August and later. The full-grown larva and pupa are described. 



Weiss (IT. B.) & Dickerson (E. L.). The Life-history and Early 

 Stages of Coryihucha parshleyi, Gibson. — Cmiadian Entomologist, 

 London, Ont. I, no. 12, December 1918, pp. 401-406. 



The Tingid, Corythuca parshleyi, Gibson, was originally described 

 as feeding upon walnut and juneberry {Amelanchier intermedia), but 

 repeated visits to the type locality in New Jersey and numerous 



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