RASPBERRY— SQUASH 331 



Remedy. — As soon as the tip of the cane wilts, cut it off at the 

 lower girdle and burn it. 

 Raspberry Root-borer {Bembecia marginata). — Larva about one 

 inch long, boring in the roots and the lower parts of the cane, 

 remaining in the root over winter. 

 Remedy. — Dig out the borers. 

 Raspberry Saw-fly {Monophadnm ruhi). — Larva about three- 

 fourths inch long, green, feeding upon the leaves. 

 Remedies. — Hellebore. Arsenicals, after fruiting. 

 Root Gall-fly {Rhodites radicum). — A small larva which pro- 

 duces galls on the roots of the raspberry, blackberry, and rose, 

 causing the bush to appear sickly, and eventually killing it. The 

 swellings are probably often confounded with the nematode root- 

 galls, for which see p. 303. 



Remedy. — There is no remedy except to destroy the galls ; 

 if plants are badly affected, they must be dug up and burned. 

 Snowy or Tree-cricket {(Ecanthus niveus) . — Small and whitish 

 cricket-like insect, puncturing canes for two or three inches, and 

 depositing eggs in the punctures. 



Remedy. — Burn infested canes in winter or very early spring. 

 Rhubarb. Rhubarb-curculio {Lixiis concavus). — A grub three- 

 fourths inch long, boring into the crown and roots. It also attacks 

 wild docks. 



Remedy. — Burn all infested plants, and keep down the docks. 



Hand-picking. 

 Rose. Root Gall-fly. — See under Raspberry, above. 



Mealy-bug. — Tobacco extracts. Syringe the plants in the morn- 

 ing, and two hours later syringe again with clean water. See also 



p. 303. 

 Rose-chafer, Rose-beetle, or " Rose-bug." See Grape, p. 3L-. 

 Rose Leaf-hopper {Typhlocyba rosce). — A very small hopper, 



white, often mistaken for thrips, living on the leaves of roses. 

 Remedies. — Whsi\e-oi\ soap. Kerosene. Kerosene emulsion. 



Dry pyrethrum blown on bushes when leaves are wet. Tobacco 



Squash Borer or Root-borer (Melittia satyriniformis). — Soh, 

 white, grub-like larva which bores inside the stem and causes rot 

 to develop, killing the vine. 



