328 lyjrRiors insects, with treatment 



Treatment. — Arseiititc of lead in summer to kill larvae of second 

 brood. Lime-sulfur and arsenate of lead in dormant season just 

 before buds open, to destroy hibernating larvic. 

 Case-bearer (Acrobasis nehulella). — A small caterpillar living in- 

 side a case which it carries with it. It attacks the opening buds. 

 Treatment. — Arsenate of lead as soon as the buds begin to 

 open. Repeat if necessary. 

 Borer (.St.sm sciiula). — A wood-boring caterpillar working in the 

 sap wood. 



Treatment, — Digging out. 

 Twig-girdlers. — See under Persimmon below. 

 Rose-beetle. — See under Grape and Apple, pp. 308, 322. 

 Round-headed Borer. — See under Apple. 

 Slug. — See under Cherry, p. 313. 



Twig-gird LER {Oncideres cingulatus). — A brownish-gray beetle, 

 about one-half inch long, which girdles twigs in August and Sep- 

 tember. The female lays eggs above the girdle. The twigs soon 

 fall. 



Remedy. — Burn the twigs, either cutting them ofif or gather- 

 ing them when they fall. 

 TwiG-PRUNER. — See under AppLE, p. 309. 

 Persimmon. White Peach-scale {Diaspis pentagona). 



Remedy. — Lime-sulfur when the trees are thoroughly dormant. 

 TwiG-GiRDLERS {Oncideres cingulat US nud 0. texana). — Dark gray 

 long-horned beetles that girdle the twigs, causing them to drop. 

 Remedy. — Pick up and burn fallen twigs in fall and winter. 

 Pineapple. Katydid {Acanlhacara similis). — A large katydid which 

 attacks, among other plants, the leaves of the pineapple. 

 Remedy. — Arsenicals, before the plants are mature. 

 Mealy-bugs (several species). — These mealy white insects attack 

 the ])lant at the base of the leaves, usually underground. 



Treatment. — Set only clean plants, or tlij) them in resin wash 

 or kerosene emulsion. Li the field ai)i)ly tobacco dust freely in 

 the bud before the ])loom begins to api)ear, or spray with kerosene 

 emulsion. 

 Red-Spider (Stigrticeiis floridanus). — Minute mites occurring in 

 great number at tiie base of the leaf, where they induce rot. 

 Treatment. — Tobacco dust applied to bud. 



