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PLANT LICE. 
For all plant lice attacking the plum, use the remedies 
recommended for the Apple Aphis. Apply the mixtures 
with considerable force so as to thoroughly wet the bodies 
of the lice. 
The following insects, treated in this bulletin, also at- 
tack the plum : The Pear Slug, Tent Caterpillar, Pall 
VVebworm, Red Spider, Brown Mite, Peach Borer, Grape 
Leaf-hopper, San Jose Scale and Putnam’s Scale. 
IM] A CU- T UEE JLN E3I I IPS. 
THE PEACH BORER [Sfuin ‘nu( (\vitios(( Say.) 
A yellowish white larva, or borer, working beneath the 
bark at the crown of the tree and down on the roots causing 
the exudation of a gummy substance. The eggs are laid 
about the crown of the tree by a small moth with narrow 
steel-blue wings that flies in the bright sunshine and nuich re- 
sembles a wasp in appearance. 
Fi<^. 21. — Peach tree Borer : a, adult female; b, adult male; c, full-grown 
larva; d, female pupa; e, male pupa; f, pupa skin and cocoon. All about natural 
size. (Marlatt, (hrcular 17. Second Series, U. S. Dep. of Agr, Div. of Ento- 
mology, 
Remedies — W'herever the gummy exudation is seen, 
cut out the borer with a knife. This should be done early 
every spring, without fail, and if thoroughly attended to, 
will keep the insect in check. A little dirt should be brushed 
away from the the crown of the tree to discover any burrows 
that may not be apparent at the surface. Many prevent- 
ives have been recommended to keep the female moth Irom 
depositing her eggs upon the trees. Wrapping the trunks 
of the trees to a height of 8 or lo inches with tarred paper 
is probably as good as any of these. 
Any of the following insects mentioned in this bulletin 
may also be found attacking the peach : Blum Curculio, 
San Jose Scale, Red Spider, Brown Mite and Blant Lice. 
