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Thursday, May 7, 2020 | History

2 edition of Studies on parasites of the Oriental fruit moth found in the catalog.

Studies on parasites of the Oriental fruit moth

Trichogramma

by John C. Schread

  • 355 Want to read
  • 38 Currently reading

Published by Connecticut Agricultural Experiment Station in [New Haven] .
Written in English


Edition Notes

StatementJ.C. Schread and Philip Garman
SeriesBulletin / Connecticut Agricultural Experiment Station -- no. 353, Bulletin (Connecticut Agricultural Experiment Station) -- 353.
ContributionsGarman, Philip, b. 1891
The Physical Object
Paginationp. 691-756 :
Number of Pages756
ID Numbers
Open LibraryOL24638936M
OCLC/WorldCa18519550


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Studies on parasites of the Oriental fruit moth by John C. Schread Download PDF EPUB FB2

STUDIES ON PARASITES OF THE ORIENTAL FRUIT MOTH MACROCENTRUS ANCYLIVORUS In conjunction with production of Trichogramma for control of the Oriental fruit moth, the results of which have already been reported, field and laboratory work was begun in on the larval parasite, Mwrocen- trus ancylivorur Roh.

(Figure 1). STUDIES ON PARASITES OF THE ORIENTAL FRUIT MOTH' I. TRICHOGRAMMA Parasite breeding and liberation is a popular subject among fruit growers because of the apparent ease of control compared to the use of insecticides, but the difficulties in the way of successful application of the method are many and varied.

The present. A Biological Study of Trichogramma Minutum Riley as an Egg Parasite of the Oriental Fruit Moth [US Department of Agriculture (USDA)] on *FREE* shipping on qualifying offers. This document is part of the United States Department of Agriculture's Organic Roots Collection.

An account is given of further investigations on the parasites of Cydia (Laspeyresia) molesta, Busck, on peach in Ontario [cf. R.A.E., xix,etc.]. The marked increase in their numbers in was mainly responsible for a reduction in the damage effected by the pest.

Trichogramma minutum, Riley, was first found parasitizing eggs in the last week of June; this was its earliest appearance Author: Van Steenburgh. This bulletin concerns the work done in and on the subject of parasites of the oriental fruit moth. Headquarters were at Yokohama and the work has continued since then both in Japan and Chosen.

Results of these first 2 years show that the pest is the host of numerous species of parasites. Their individual incidence is here discussed at some by: 4. A microscopical study of the development ofTrichogramma minutum riley (the egg-parasite of the sugarcane borers in Mysore) and its Studies on parasites of the Oriental fruit moth book of the eggs ofCorcyra-cephalonica staint (the flour-moth employed in the mass production ofTrichogramma.

Krishnamurti 1Cited by: 4. to many parasites, there are commonly one or two parasites in each egg of the oriental fruit moth, and two to four in each egg of the codling moth. In other host eggs, particularly in large eggs of certain species of Lepidoptera, 15 to 25 adults have been reared from one egg.

Individual female parasites in the tests produced a maximum of. pdf ( k) pdf-plus ( k) citing articles; survival of macrocentrus ancylivorus roh., a parasite of the oriental fruit moth, on different concentrations of various sugar solutions. pielou and, r. glasserCited by: Macrocentrus ancylivorus is a parasite that can help control the oriental fruit moth larvae population.

The parasite is most abundant in orchards where no broad-spectrum pesticides are used. Many studies have been conducted on agricultural systems to test the hypothesis that increased vegetational diversity fosters stability in the insect community. In a recent review of the available world literature, Andow () found that in a total of examples, the population densities of 66% of the monophagous herbivores studied decreased.

With Macrocentrus ancylivorus, a braconid parasite of the oriental fruit moth (Grapholitha molesta), a twelvefold resistance to DDT was produced after 19 generations of selection, but no significant increase in the resistance level was achieved up to the time the experiment was discontinued at generation 72 (Pielou and Glasser, ; Robertson.

Report on the Agricultural Experiment Stations, Page: 80 p. ; 23 cm. This book is part of the collection entitled: United States Experiment Station Reports and was provided to UNT Digital Library by the UNT Libraries Government Documents Department. John C.

Schread has written: 'Studies on parasites of the Oriental fruit moth' -- subject(s): Trichogramma, Parasites, Grain, Oriental fruit moth, Diseases and pests 'Control of. Studies of several species received impetus during because of their superficial resemblance to introduced lepidopterans and their role as alternate hosts of parasites.

These interests are exemplified respectively by Thompson () and Bobb (), the latter citing site of the oriental fruit moth. New York Agr. Exp. Sta. Tech. Bull. Oxford University Press is a department of the University of Oxford. It furthers the University's objective of excellence in research, scholarship, and education by publishing worldwide.

A 'read' is counted each time someone views a publication summary (such as the title, abstract, and list of authors), clicks on a figure, or views or downloads the full-text. University of Guelph Scottish Studies Collections 2, K Extracts from the records of the Kirk-Session of Elgin, with a brief record of the readers.

Abstract does not appear. First page follows. Preface The critical phase of biological control work against weeds is the selection of species that will not harm other plants, or at least useful plants. All other considerations are subordinate, and a suitable species for introduction into a country against a weed is one that is safe to introduce, irrespective of its other characteristics.—J.

Moth oriental fruit, economic aspects and control of, 58 Mouse testes, effects of dehydrogenases in, Muralidhara, R., Mussels, Ohio, parasites in, Newhouse, W.

H., review of book edited by, New York, northwestern, ancient beaches and glacial lakes of, 78; mollusca of Finger Lakes of, "Noble Fellow" William Starling Sullivant.

Sarman, P., and Brigham, W. Studies on parasites of th oriental fruit moth, II. Macrocentras ancylivorus. Conn. (State) A, Expt. Sta. Bul.pp. fhe closure used in the cover is a xil-bottle cap with a flanged edge approximately 1/2 inch wide. The cap fits in the openan very snly, and no seal is needed to hold it in place.

Description: The first issue of the Journal of The New York Entomological Society was published in March ofand it is still in publication. Authors deal with many aspects of entomology, but the theme is of a systematic or taxonomic nature including biology and ecology.

Editors have occasionally arranged special editions in which specific themes were followed and certain editions honored.Eggs, larvae, and pupae of the oriental fruit fly (Dacus dorsalis), melon fly (D. cucurbitae), and Mediterranean fruit fly (Ceratitis capitata) were exposed to Co⁶⁰ gamma rays.

Increasing dosages were required to prevent hatch as eggs became more mature except that eggs about 1/3 developed were more sensitive than younger ones.