CHE REFERENCE LIBRARY - Pole Shift Survival Information

~ERT,i IN El,E~IfENTR IN N IJRSERY PRACTICE 213
Ihfrol. -- ‘i’hc control OF the t.arnished plant-bug in the
nursc~r~ is still an unsolved problem.
AI’I’IJTI: Ixw-I1oPPIm. --- The leaf-hopper (E??L~xMsCcI 71&a@
mat\l atta& the Foli;lgr of apple, (burrant, rose, gooseberry,
raspberrj~ and numerous other plants. These insects (Pig. 224)
sur4\: t,hr> juicae from the leaves, causing t,hem to curl and to
assuint: a mottled yc\IIowish appea,rancle. The insects work
tnostI~* 011 the ut&rsides of the leaves. &eding on the terminal
ICWW of the growing shoots in the latter part of (June, July and
August, tlqv may rcti& the growt,Ii and thus cause such trees
its ;tp1)1(5 to he stritlttcl an(1 undersizetl.
(‘cM~)b. -~- It. is difficult to hit t.he young hoppers in the
CWM Icavcs by spraying and this method of treatment is not
protitalrle. I )ipping badl~~ infested stock with a soap solution,
OI~C~ pou1~1 it1 S ~;&HH of water, kills most of t.he young hoppers.
The dipping sho~~ld be clone in the latt.er part of June and again
about 11 tnonth Iatxir. In Nissouri nurseries the hoppers are
sometimes cqtur4 on sticky shields mounted
on it two-n~I~t&4 c3rt drawn by a horse.
SAN .Josi;: SCUX. --- The San Jo& scale
( A~iSpidifd?M I)fTrl iriosus) att.acks practically
aI1 deciduous fruit and ornamental plants and
is often very destructive in the nursery.
The insect, may he recognized by two forms
of scales on the bark and fruit (Pig. 225).
The largest scales are about & of an inch in FIG. 224. The
diameter, nearly circular, gray, with a central apple leaf-hopljcr,
adult (x 11).
rla~rk nipple surrounded by a yellowish ring.
The smaller scales are nearly black with a central gray dot
surrounded by a black depressed ring bordered by a grayish
ring. Usually the bark appears reddish in color around the
scale. When abundant the scale forms a crust on the bark.