DECIDUOUS FRUIT INSECTS AND INSECTICIDES. 
Puiate XVIII. The grape scale. Fig. 1.—Showing how the young scales set- 
Fie. 
on Eewnd 
5 
~I 
ee) 
6. 
tle, more or less, in longitudinal rows. Fig. 2.—Full-grown 
male and female scales; also many parasitized individuals. 
Fig. 3.—Pygidium of adult female, showing circumgenital 
glands and orifice, lobes, and spines.) 227, 2-02 eee eee 
XIX. The grape scale. Fig. 1.—Adult winged male. Fig. 2.—Geni- 
taliaof male. Fig.3.—Antennaof male. Fig. 4.—Serrations 
on costal vein. Fig. 5.—Tarsus and claw of male.......---- 
TEXT FIGURES. 
. The grape leathopper (Typhlocyba comes var. coloradensis): Adult...-.. 
The grape leafhopper: Nymph of the first molt.....................- 
. The grape leafhopper: Fully developed nymph of the fifth molt... ... 
. Grape leaf in early stages of attack by the grape leafhopper, showing 
the characteristic mottling of the upper surface.........-.----.---- 
. Grape leaf showing final result of attack by the grape leafhopper; leaf 
withered and brown before the fruit is mature.......-- 
Weekly emergence of codling moths from Oe pointored tena) ~ 
Sameyiose.: Calle. OOO eo ae meer raed tee Syst eee «| ot eee See en 
. Codling-moth larvee collected from banded pear trees at Walnut Creek, 
Cale 1909 Sener eee) Mee tone cus hye 
. Codling-moth larvee collected from banded apple trees at Walnut 
Greek: Cal M909. 22. keane: . ce ee eee bole eae eee ee 
. Weekly emergence of codling moths from material collected from 
banded apple and pear trees at Walnut Creek, Cal., 1909........-- 
. Band records from 11 apple trees at Walnut Creek, Cal., 1910......... 
. Band records from 15 Bartlett pear trees at Suisun, Cal., 1910......-- 
. Weekly emergence of moths from material collected under bands on 11 
apple trees, at’ Walnut Creek, Cal., 1910. 22-2) 2-5-5 eee 
. Weekly emergence of moths from material collected under bands on 15 
pear trees at Suisun, Cal. LOMO en noo Sane ome he eee 
. Band records of the codling moth from apple trees at San Jose, Cal., 
. Weekly emergence of codling moths from larve collected from banded 
apple trees'at san Jose, Call, 1909s so ono oan oe oe oaks wee ee 
. Condition of grape blossom-buds at the time the rose-chafer ( Macro- 
dactylus subspinosus) first appears, and when the first poison spray 
should beapplied cso 3a6 a. ot Sc ce perce icc on open ae en 
. Injury by the rose-chafer to grape blossom-buds. .......------------ 
. The rose-chafer ( Macrodactylus subspinosus): Adult, larva and details, 
OU, CWO 5.2 esas 3 ae ig Saya eve aa aS cnc te aa 
. Injury by the rose-chafer to berries of grape...........----------.-- 
. Grape cluster showing almost total destruction of berries through 
feedunovol the mose-chaler= ys] eee ei ee ee 
1. Grape clusters from which berries injured by the rose-chatfer have fallen 
. The California peach borer: Adult, larva, pupa, and details.........- 
. Cage used in rearing the peach and plum slug................-.+.... 
. Developmental stages of peach and plum slug (Caliroa [Eriocam- 
poides| amygdalina): Adult, egg, larva, and pupa........---------- 
. Hyperallus calirox, a parasite of the peach and plum slug......------ 
. The grape scale, Aspidiotus (Diaspidiotus) wwx: Newly hatched larva 
CWO K6 Var Ky Fe Vl ks ioe ernie tS yo aN a hie NS ee 
. Cage used in rearing parasites of the grape scale.........------------ 
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