Experiment Station Record, Volume 48, January-June, 1923 Page: 54
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54 EXPERIMENT STATION RECORD. [Vol. 48
natural enemies of the various species are briefly considered. The lepidopterous
species of the Palearctic fauna not previously considered in the literature
of forest entomology are given in an appendix. A host index in which
the insects are listed according to the parts of the tree attacked is included.
The third part (pp. 305-322, which is a botanical supplement, lists the important
forest trees by their respective families, gives a list of botanical literature
on forestry, of zoological literature, etc.
The woolly bear caterpillar (Teracotona submacula Wlk.), D. GuNN
(Union So. Africa Dept. Agr. Jour., 4 (1922), No. 6, pp. 542-547, figs. 5).-This
Is an account of a caterpillar which abounds in the gardens of Port Elizabeth
and surroundings, causing extensive damage. In many gardens every plant
of a succulent nature is either seriously injured or completely destroyed by it.
The species is a native and is distributed throughout the Union of South
"It feeds upon a large number of wild and cultivated plants, but appears
to favor cabbage, bean, beet, and lettuce. The eggs are deposited in clusters
on leaves, stems, and twigs, and when the larvae emerge they defoliate the
plants. The full life cycle occupies from 175 to 185 days, and there are two
generations in a year. The eggs and caterpillars are frequently heavily parasitized.
When the infested area is small, the caterpillars may be collected
by hand and destroyed by either crushing or placing them in a receptacle
containing a small quantity of paraffin and water, some miscible oil, or carbolic
dip. In private gardens and market gardens the caterpillars can be
readily controlled by spraying with arsenicals or by dusting with Paris green
An epizootic among caterpillars of Galleria mellonella, S. METALNIKOW
(Compt. Rend. Acad. Sci. [Paris], 175 (1922), No. 1, pp. 68-70).--The author
reports upon an outbreak of disease among rearings of G. mellonella, it being
the first in a period of more than 10 years. In his rearings, consisting of
from 300 to 400 caterpillars, all had succumbed to the disease within a period
of 24 hours, not a single individual surviving. Investigations have shown the
presence of a long rod and a micrococcus-the characteristics of which are
described-which when associated are extremely virulent for caterpillars of
the bee or wax moth. In an epizootic observed later the rod associated with
the micrococcus was larger, and they were much more virulent.
The maple case-bearer, Paraclemensia acerifoliella Fitch, G. W. HERRICK
(Jour. Econ. Ent., 15 (1922), No. 4, pp. 282-288, figs. 5).-This case-bearer, first
noticed in New York State by Fitch during the summer of 1850, has become
so abundant during the past three years and proved so destructive to sugar
maples that the owners of many groves have become alarmed over the prospect
of the destruction of their trees. This has led to the studies of the pest here
Eulia mariana Fern., a new apple feeder in Pennsylvania and some
related forms on apple, S. W. FROST (Jour. Econ. Ent., 15 (1922), No. 4, pp.
310, 311).-The author reports that, while not as abundant as the red-banded
leaf-roller (E. velutinana Wlk.), previously referred to (E. S. R., 44, p. 656),
E. mariana has been repeatedly collected feeding both on the foliage and the
fruit of the apple in Pennsylvania.
Effect of low temperature on the hatching of gipsy moth eggs, J. N.
SUMMERS (U. S. Dept. Agr. But. 1080 (1922), pp. 14).-The discovery, during
an extensive study of the gipsy moth, that in New England there are agencies
of natural control responsible for a considerable mortality among the several
stages led to investigations extending over a period of several years here
reported. The work has shown that the failure of the egg clusters to hatch
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United States. Office of Experiment Stations. Experiment Station Record, Volume 48, January-June, 1923, book, 1923; Washington D.C.. (digital.library.unt.edu/ark:/67531/metadc5006/m1/70/: accessed January 22, 2019), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.