Prate I. 
II. 
PE: 
XII. 
XIII. 
XIV. 
XV. 
XVI. 
eV ET: 
ILEUSTRA TIONS. 
PLATES. 
Fig. 1.—Cover crop of vetch in vineyard of Mr. John Higgins, North 
East, Pa. Fig. 2.—Cover crop of turnips in vineyard of Mottier 
Bros., North East, Pa.; vineyard badly infested by grape leafhop- 
per, which was effectively treated with blackleaf tobacco-extract 
Fig 1.—Injury by grape leafhopper ( Typhlocyba comes) to unsprayed 
vines. Fig. 2.—Perfect foliage of sprayed vines. Views from ex- 
perimental plats in vineyard of Mr. H. H. Harper, at North East, 
General view of the Whitman pear orchard, with power-spraying 
outfit in operation in spraying experiments against codling moth, 
Concorde Cals 90 Ose sete eke ERs arenes Py ae tk nite eRe al ee 
. Injury by rose-chafer (Macrodactylus subspinosus) to fruit on un- 
sprayed grapevine in the vineyard of Mr. C. F. Hirt, at North 
| EES rd Fy ee Bre end PP ee Sc SM ee ne PR ee as eae 
. The protection afforded by spraying; vine from row adjoining the 
unsprayed) vine shown tan Platend Vig. . «ce ccsehes = mets yacicce te < 
. Injury by rose-chafer to fruit on unsprayed grapevine in the vineyard 
GiuMr> Geore CookeatiNorth Hast. Pa. .0, Soo 2.t- Sp paekee est Se 
. Protection afforded by spraying; vine from vineyard of Prospect 
Park Fruit Farms Co., adjoining vineyard of Mr. George Cook, 
INioraiiiig Ey a bape va ee Bicce Reece nee eg A CSRs ety dS a NE Peer 
. The California peach borer (Sanninodea opalescens). Apricot 
orchard, showing trees injured and killed by the borer. ........-- 
. The California peach borer. Rearing cages in laboratory yard at 
San Jose; Cal. used in study of its life history.................... 
. The California peach borer. Fig. 1—Base of apricot tree, show- 
ing injury by larve. Fig. 2.—Wire cage, used in determining 
period of emergence of moths, in place around tree...........-.-- 
. Peach leaves showing work of peach and plum slug (Caliroa [Erio- 
ROMO OOIES|| CHO HUMMTIO nae ace ae Saad boas Shoe LL oe sae anne eee 
Injury about two weeks old to peach shoots by the peach bud mite 
OTS OME UUSIIUMOLEH annem aera 8 Aceh oy Sele naa, SS te Be heats a) 
Injury several weeks old to peach shoots by the peach bud mite... .- 
Showing condition of peach nursery trees in the fall, due to injury 
eraneoncach DON er 2a. eer Sec ees Se en RS clone = 
Showing condition of peach nursery trees in the fall, due to injury 
loNy (ne jorsevelay lone k Tnan nese Sp Be Coen ee a 
Injury to buds supposedly due to the peach bud mite. .-..-.-.---- 
Grape canes showing infestation by the grape scale. Aspidiotus 
(DEST GUSH EE) OER 2s Re a ES ae en 
Page. 
10 
42 
