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The Grape Root Worm (Fidia viticida) has been present in small 

 numbers. It has as yet done no damage, but is well worth watching, for 

 when firmly established it is difficult to control. The adult is a brownish 

 beetle about one-quarter of an inch long, hoary with grayish hairs. Tt drops 

 from tlie leaves and shams death when disturbed. During June and July 

 they cut longish holes in the leaves, of characteristic shape. The grubs do 

 the most serious damage in their feeding upon tlie roots; and when they 

 are numerous strip away so much of the root bark with the rootlets that 



/-••^V 



4-m':.^" 





The Grape Root-worm, a, adult beetle: b, eggs; c, d, grubs: e. pupa: f, work of 

 beetles on leaves; g, Infected roots. (Copied). 



the vines succumb. The vines, when affected, should be sprayed with lead 

 arsenate as soon as the beetles appear in June ; a free use of a quick- 

 acting fertilizer is of service. The grubs can be killed by using carbon- 

 bi-sulphide about the roots, but this treatment is expensive and should 

 rarely be necessary in this Province. Thorough cultivation in June and 

 July apparently does much good by destroying the pupae and interfering 

 with the feeding of the grubs. 



The Grapevine Flea-beetle (Graptodera chalybea) has been reported 

 from the Eastern Townships. It has not yet been noticed on our vines. 

 Destruction of the hibernating beetles under the bark scales, and a strong 

 mixture of lead arsenate sprayed early, as soon as or before the first beetles 

 appear, controls the pest. They are steel-blue beetles which appear on the 

 grapes early in the season and feed upon the buds. Later, the larvae feed 

 upon the leaves. 



