INSECTS INFESTING THE CL'RRANT. 



CHAP. 



The Currant Borer (^-Egeria tipuli/ormut).12'2 

 The Aiiiericaii Currant-borer (Psenocenm 



KUpernoUttua) 133 



The Currant Mite (Tyroglyphim ribui) 134 



The Imported Currant-worm (yenuttms 



ventricoxua) 135 



The Native Currant-worm (Printophora 



yrosxularice) 13(5 



The Currant Span-woim (Eufitchia nbe- 



aria) \:i7 



The Progne Butt«rfly (Gra%ita progiu) 138 



The Curratit Aphis {MyziDt rtbUs) 139 



The following insects also infest the Cur- 

 rant : 



The Rose Scale (Diasp^s- rogce). 

 The Lemon Peel Scale (At-pidiohta nerii). 

 The Stalk Borer ((r'or<!/na 7iitela.) 

 The Gooseberry Fruit-worm (Pempelia groi- 



mlaria.) 



CHAPTER CXXXII. 

 The Currant Borer. (Cal.) 



{^'Egeria tipuliformh. — Linn.) 

 Order, Lei'IDoI'TKKa ; Family, ^Egerid.?^. 



[Eating out the central pith of currant and gooseberry 

 bushes; a whitish sixteen-legged worm.] 



Among the numerous insect enemies of our small fruits, 

 none are more widely distributed nor better known than the 

 currant borers. 



The eggs from which these borers (Fig. 202) hatch are depos- 

 ited near the buds, only one egg usually l)eing consigned to a 

 single plant. As soon as hatched, the young borer penetrates 

 the stem to the pith, which it devours, forming a l)urrow seve- 

 ral inches in length in the interior of the stem. As it increases 

 in size it enlarges the hole communicating Avith its burrow, so 

 as to admit of the more easy passage of its castings, which it 

 pushes out of this opening. It reaches its full growth in the 

 following Spring, and then measures a little over six lines in 

 length. 



