3O The Horticulturist' s Rule- Book. 



Orange. KATYDID (JMicrocetttrum retinervis, Burm.). A 

 large green grasshopper-like insect, feeding upon the 

 foliage. It is largely kept in check in some localities by a 

 parasitic chalcid fly. 



Remedy Collect the eggs, which are conspicuous on the 

 borders of the leaves. 



LEAF-NOTCHER (Artipus Floridanns, Horn). Beetle, one- 

 fourth inch long, greenish-blue or copper-colored, eating 

 the edges of the leaves. 



Remedy. Jarring. 

 SCALE. Many species, preying upon the leaves and shoots. 



Remedies. Kerosene emulsion applied v/ith a brush or 

 in spray, just before the trees bloom, and at intervals of 

 two or three weeks as occasion may require. Lye wash. 

 Lye and sulphur wash. Pyrethrum decoction. Resin 

 and fish oil soap. When young the scale is more easily 

 destroyed. 



Parsley. PARSLEY- WORM (Papilla Asterias, Cramer). 

 Larva, inch and a half long, light yellow or greenish yel- 

 low with lines and spots ; feeding upon leaves of parsley, 

 celery, carrot, etc. When the worm is disturbed, it ejects 

 two yellow horns with an offensive odor, from the anterior 

 end. 



Remedies. Hand picking. Poultry are said to eat them 

 sometimes. 

 Parsnip. PARSLEY-WORM. See under Parsley. 



PARSNIP WEB-WORM (Depressaria herachana, De Geer). 

 Larva, about a half inch long, feeding in the flower cluster 

 and causing it to become contorted. 



Remedies. Arsenites, applied as soon as the young 

 worms appear, and before the cluster becomes distorted. 

 The worms are easily disturbed, and hand-picking is often 

 advisable. Burn the distorted umbels. 



Pea. PEA-WEEVIL or PEA-BUG (Bruchus pisi, Linn.). 

 A small brown-black beetle, living in peas over winter. 

 The beetle escapes in fall and spring and lays its eggs in 



