36 The Horticulturist's Rule- Book. 



Kose (Rose Beetle), continued. 



vials of bisulphide of carbon hung in bushes and vines 

 are recommended by some. 



ROSE-LEAF HOPPER (Tettigonia rosa}. Hopper, very small, 

 white, often mistaken for thrips ; lives on the leaves of 

 roses. Various stages of growth may be found in the 

 leaves throughout the summer, and even on indoor plants. 

 Remedies. Whale oil soap. Kerosene. Nicotyl vapor 

 Infusien of tobacco. Kerosene and water emulsion. Py- 

 rethrum. The insect is easily destroyed when in its im- 

 mature state. 



ROSE SLUG (Selandria rostc, Harris). Larva, one-half inch 

 Ibng, dull and slimy, feeding upon the leaves. 



Remedy. Kerosene emulsion. 



Scale. Various small scale-like insects infesting the young 

 branches and leaves of many kinds of trees. The orange 

 tree scale is one of the worst. (See under Orange.) 



Remedies. Kerosene emulsion. Lye wash. Lye and 

 sulphur wash. Pyrethrum decoction. Resin soap. Oil 

 and alkali wash. Salt and lime wash. Resin and fish-oil 

 soap. Sulphide of soda wash. 



Smoke-tree. JUMPING SUMAC BEETLE. See under Sumac. 



Squash. BUG (Anasa tristis, De Geer). Bugs, black, very 



offensive odor when handled or crushed ; many broods. 



Remedies. Plaster and kerosene. Hand-picking. Trap- 

 ping, by laying blocks about the hills under which the 

 bugs will collect after feeding in the night ; early in the 

 morning jar or brush the insects into a pail of kerosene. 

 A mild kerosene emulsion kills the young insects. 

 MELON-WORM. See under Melon. 



SQUASH-VINE ROOT-BORER (sEgeria cucurbit a, Harris). 

 Larva, about one inch long, whitish, boring into the roots, 

 causing the vines to perish. 



Remedy. Bank up the young vines as far as the blos- 

 soms. Cover some of the joints of the vine, that roots 

 may form to sustain the plants, in case of injury. 



