366 



Insect Pests. 



we know little of its workings. As far as we can see, trapping 

 seems the most successful method of prevention. This may Ije done 

 as for the Ci:«lling Ifoth, as from what we see recorded from Headley, 

 the maggots pupate under " shreds " and other cover, and would Ije 

 doubtless caught in " sack bands." 



Kollar (4) p. 233 refers to the plums ripening prematurely, and 

 says : " We should shake the tree to make that plum fall and im- 

 mediately convey it out of the garden." On a small scale we can 

 do this, but it must lie done often and thoroughly. 



PiEFEKENC'KS. 



(1) Tlicnhiilil, F. y. Eepoi't on Economic Zoology for the year ending 



A]ivil 1st, 1907, p. 67 (19071. 

 (2l Throhah], F. r. Notes on Insect Tests in 1894, p. 8 (18951. 

 (I-)) SIniiiloit. H. T. 'A Manual of liritisli Buttertlies and llotlrs,' vol. II., 



p. 2.-.;! (lH.->9i, 

 (4) Knihiv. 1". -A Treatise on Insects, etc' p. 282 (Eng. Trans.) (1840l. 



PLUM TORTRIX. 



(I'cnlJiuui jirii niiniii . Hlj.) 



This is the most abundant Tortrix 1 have found on plums, and it 



frequently does as mucli harm as the Winter ]\Ioth. 



The moth has the front wings with blackish-brown liases, then 



follow pale areas and a 

 Mhite spot on the (inter 

 edge on the fold, the apex 

 white, clouded with grey 

 posteriorly, hind margin 

 dark grey, and three or 

 four dark grey spots near 

 the middle of tlie central 

 band. 



Hind wings bro\Miisli- 

 gre)-. Wing expanse aljoul 

 ■-! inch. It appears in 

 June and July and readily 



flies from the trees when they are shaken. 



The caterpillar feeds alsci cm a]>ple, cherry and nut, and on the 



side and liullace; it is found in ]\ray aud jiupates as the other species 



referred t<i on p. 7S. 



