Experiment Station Record, Volume 11, 1899-1900 Page: 64
xvi, 1208 p. ; ill. ; 24 cm.View a full description of this book.
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G 4 EXPERIMENT STATION RECORD.
cocoons to the heat of the sun, or the raspberries wmay be sprayed with
arsenical compounds or with hellebore.
A bibliography of the subject is appended.
The author gives descriptions of the various stages and an account
of the life history of the grapevine flea-beetle (Haltica chalyhbe). The
methods recommended for combating this insect are the scattering of
air-slaked lime about tlhe base of the vine, so as to kill the larv.t when
they attempt to enter the ground, alnd spraying with arsenical poisons.
The first application of Paris green should be a short time before the
bu ds begin to swell, and should be in the proportion of 1 lb. to 50 gal.
of water, with the addition of enough line to nmae the mixture milky.
When the t larv first appear on the leaves, another application should
be made ii the proportion of 1 lb. to 150 gal. of water.
Notes on the San Jose scale and black peach aphis, L. F1. TAFT
(Miichigaat Sta. Rpt. 1S97, pp. 95, 96).--During the winter of 1896 and
1S97 specimens of San Jost scale were received from a number of sectioins
of the State, and several centers of infection were located, all of
wiich it is claimed were infested from nursery stock received from
New Jersey. Directions were given for treatment, and the work was
thoroughly done, so that further spread was to a great extent checked.
The black peach aphis is reported to have spread through a great
number of orchards throughout the State, destroying thousands of
trees. Various insecticides have been tested, including bisulphid of
carbon, kainit, tobacco, salty and wood ashes, and it is believed, conlsidering
its fertilizing value, that salt and wood ashles are to be recoinnendeed
as the best treatment. Tobacco water is considered second best, and
it is recommended that trees be soaked in tobacco water before being
plante d.
The San Jose scale, U. DAMIMER (Gard. Chron., 3. ser., 25 (1899.,
No. ,9, p. 2G).--A review is given of a paper read by Professor Frank
before tile Berlin Horticultural Society on thle San Jose scale and its
allies.
OnL account of the somewhat prevalent belief that the Aspidiotus
conchatformlis, which is widely scattered about Europe, is but a geographical
form of the American A. pcrniciosus. Frank lhas investigated
the subject and has arrived at the conclusion that the European form
is a true species, quite different from the American. In his investigations
on this subject lie received from America at different periods
twigs of the peach densely beset with the true San Jose scale, and his
investigations led him to conclude that instead of three generations
yearly, in which a female breeds about 600 young scales, as is claimed
by most American investigators, le found but one generation, and tliat
only about 3( young are produced, from which he decides that thie
Americanl theory is erroneous. He further states that it is questionable
whether tlie San Jose scale can live in Europe.
Orchard fumigation, C. W. WOODAVORTH (CaGtliJfbrWia Sta. BIl. 122,
pp. 3,3, .figs. 22).-The bulletill contains a history of the discovery of the
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General Index to Experiment Station Record Volumes 01-12, 1989-1901 and to Experiment Station Bulletin Number 2 (Book)
A topical, alphabetically arranged index to volumes 1-12 including experiment station records, publications reviewed, and foreign publications. It has a 'Consolidated Table of Contents' which lists all editorial notes and publications of the experiment stations and Department of Agriculture from the referenced volumes.
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United States. Office of Experiment Stations. Experiment Station Record, Volume 11, 1899-1900, book, 1900; Washington D.C.. (https://digital.library.unt.edu/ark:/67531/metadc5043/m1/80/: accessed April 19, 2024), University of North Texas Libraries, UNT Digital Library, https://digital.library.unt.edu; crediting UNT Libraries Government Documents Department.