Insects, etc., Injurious to the Plum. 



■Ml 



in the Evesham district. The damage is done to tlic youns phims 

 by the hirva of this sawily eating out the interior. If tlie fallen 

 fruitlets are cut o])en a pale lar\'a, at once seen to be that of a 

 sawfly, is detected witliin it. Later the infestation manifests itself 

 more clearly by the presence of a round hole in eacli fruitlet wlicnce 

 the sawfly larva has escaped. Tlie developing kernel seems to be 

 their chief attractiun, for in all I have examined tliis has been 

 either damaged or completely destroyed. Fruitlets from i to 

 nearly 1 inch in length have lieen found damaged. Drmcrod says 

 that those she examined from TJrchester had usually mie lioring 

 near the end opposite to the insertion of the stem. In all tliose 



.1. T'. /'. IHutoiil. 



FJG. 24;"'. — VLl'yi FKUITr.E'l's li.\:\lA<;!-:i) nv S.VWFLY {IInph>caini>'' J n/'-jrumi^). 

 .\. i-iirijdli fl'dlll Snil. 



sent me from Herefordshire and those found at Wye the exit hole 

 was at the side. 



The opening is usually filled ^\-ith wet frass as long as the larva 

 is within, similar to what we notice with the Codling ILith. 



I have never yet found more than one larva in each fruitlet. 

 Although gi'eengages have ))een especially mentioned as l.ieing 

 attacked, it appears that all varieties of plums suffer, for I have 

 seen it in Czars, Early Prolifics, A''ictorias, Blue Gage, Damson I'lum 

 and Pershores. 



KoUar (4) savs "the greengage and other round plums are 

 attacked when they are hardly the size of a pea." 



LiFE-HlSTOEY. 



The sawfly appears in April and May. In colour it is shiny 

 black with yellow, yellnwish-red or reddish-lirown legs and iri- 

 descent wings and with wing expanse of rather more than 1 inch. 



