1920 



EXTOMOLOGICAL SOCIETY. 



•i; 



that tliose iimst have hatclu'd from the eggs, at tlic latest, by the time the blossoms 

 aj»|)eared. 



At the time of piekiiig it was I'oiiiul tliat most of the apiihs luul almn-t 

 (•omj)icte]y outgrown the ])laiit-bug injury save for small brown or blackish elevated 

 seal's on the surface. IJadly }>uneture(l a])ples, however, were greatly deformed 

 by llie failure of the iiijmcd areas to grow. The jiercentage of blemished apples 

 could not be determined because the fruit was thinned early in the season and 

 the worst specimens picked off. 



The San Jose Scale (A-spidiofus pcrniciosx.^) has not yet regained the 

 position it held prior to the winter of K)17-18. Both last year and this year it was 

 dillit-ujt to li]id many badly infested trei's. The insect, however, is gradually iii- 

 cicasing in its old haunts — Jieglected orchards. 



TiTE Apple Leaf Skwki; (Aricylls niihocnhnui) was present in mo-t orchards 

 ibis aiitniiiii ill iiiodrralc numbers. It is u^uallv a rare insect in Ontari'). 



Fig. 3. — Apple leaves folded by the Apple Leaf Sewer. Fij 



4. — Pear Slugs skeletoni- 

 zing cherry leal'. 



liESSEU Appli: Woi;vt {Enarrnonla prunimra) was. as last year, very scarce. 



Pear Slug {Erwcampoides limacina). The outbreak of pear slug was re- 

 ])eated this year on an even larger scale than tb.at of I'-MS. The foliage of tliousands 

 of pear and cherry trees throughout a large ]iart of the Trovince was destroyed, 

 and in the case of early liichmond cherrie- niiirh of the fruit was rendered 

 worthless. Jtist as last year, it was the first Inooi! that did nearly all the damage. 

 In a few localities the serond brood lar\;e were fairly numerous, but in nio-t 

 ]daces they could scarcely be said to ha\e done any injury worth mentioning. 

 The eggs of the second brood were this year, as last, highly parasitized. .\ few 

 I'arasites were reared also from the pujiae. 



EosE CiiAEEPi {MacrodaciyluK siiJ)spiiiosiis). In June lioi-des of ro-e ehafers 

 a|>[ieared in the Simcoe and l^'oiitliill section- and iiijiire(l a|i|tles. gra|ie< and 

 elierries. 



