COURTESY CONN. AGR. EXPT. STA. 
FIGURE 29.—The tuliptree scale, 
Toumeyella liriodendri, on yellow- 
poplar. 
COURTESY CONN. AGR. EXPT. STA. 
FIGURE 28.—The magnolia scale, 
Neolecanium cornuparvum, on 
magnolia. 
Jersey to Nebraska and the Dakotas. Its favored hosts appear to 
be Scotch and jack pines, but it also feeds on several other pines. 
Austrian pine is fairly commonly attacked. Infestations have also 
been found on red pines growing among or adjacent to heavily 
infested jack pines. Mature females are reddish-brown, oval, very 
convex, and about 6 mm. long. Males are tiny, fragile, and winged 
(469). 
Partly-grown females spend their first winter on twigs. Growth 
is completed by June or earlier of the following year, and each 
female deposits about 500 eggs under her body. Hatching occurs 
in June or July, and the young larvae begin feeding on the twigs 
immediately. A white, powdery substance develops on the margins 
of the larvae. Male adults emerge in about 3 weeks and fly in 
search of immature females with which they mate. A few days 
later, the males die. The female continues to develop slowly until 
late fall, then goes into hibernation. There is one generation per 
year. 
Pole sized stands of pine are occasionally severely infested, but 
seedlings and young saplings usually suffer the greatest damage. 
Heavy feeding may result in considerable branch mortality or the 
death of entire trees. Damage in Christmas tree plantations in 
the Midwest is often severe. In heavy infestations, a large per- 
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