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pear thrips (Euthrips pyri) by California. State Commission of Horticulture.

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Published by W.W. Shannon, supt. state printing in Sacramento .
Written in English


  • Pear thrips.

Book details:

Edition Notes

StatementBy Dudley Moulton, entomologist for Santa Clara County, California. Illustrated with original drawings by W. S. Atkinson and photographs by A. P. Hill.
ContributionsMoulton, Dudley. [from old catalog]
LC ClassificationsSB741.P3 C2
The Physical Object
Pagination17 p.
Number of Pages17
ID Numbers
Open LibraryOL23703585M
LC Control Number09027699

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Title. The pear thrips (Euthrips pyri) By. California. State Commission of Horticulture. Moulton, Dudley. Type. Book Material. The pear thrips, Taeniothrips inconsequens (Uzel), is a tiny insect in the order Thysanoptera. There are over species of thrips in North America, but only a few are serious pests. Most thrips feed on plants, attacking flowers, leaves, buds and fruits. Some thrips are particularly abundant in the flower heads of daises and dandelions. Several.   Excerpt from The Emergence of Pear Thrips in the Healdsburg Area of California in The total emergence occurred over a period of 38 days, from February 19 until March The peak of the emergence (empirical mode) and the arithmetical mean occurred on March 9. The normal curve of emergence was distorted by the influence of temperature. Thrips palmi has spread from its presumed origin, the island of Sumatra, to the coast of Florida, and threatens to extend its distribution throughout North and South America. Pear thrips, a known orchard pest of Europe and the western United States and Canada has recently become a major defoliator of hardwood trees in Vermont and the.

Title. How to control the pear thrips. (Euthrips pyri Daniel) / Related Titles. Series: Circular (United States. Bureau of Entomology) ; no. By. The life history and habits of the pear thrips in California Shirley Watson Foster, Paul Robert Jones Full view - Bulletin of the U.S. Department of Agriculture, Issues Pear thrips, Taeniothrips inconsequens, are an insect. They cause leaf deformation and defoliation of many tree species including maples (especially sugar maple), birch, ash, black cherry, beech, and fruit trees. signs and symptoms. Pear thrips feeding causes leaves to be dwarfed, mottled yellow to green-brown, and distorted. Pear thrips are tiny insects (1 mm to mm long) that suck the delicate tissues of freshly opened sugar maple buds. The sugar maple is the species reported to have the worst attacks and the most damage, although pear thrips attack other species such as red maple and Norway maple.

texts All Books All Texts latest This Just In Smithsonian Libraries FEDLINK (US) Genealogy Lincoln Collection. National Emergency Library. Top American Libraries Canadian Libraries Universal Library Community Texts Project Gutenberg Biodiversity Heritage Library Children's Library. Open : FIG. L.-Map showing area infested by pear thrips in California. of its spread over (Original.) large areas, and the suddenness of attack in great numbers-completely blasting in a few a The present paper is an abstract of a more comprehensive report on the life history and control of the pear thrips to be published later. The recommendations. Abstract. Adult emergence of pear thrips, Taeniothrips inconsequens, from forest soil was monitored using cm diam traps in 16 sites around Vermont from –Emergence usually started in mid-April, though in some sites began as early as 2 April or as late as 15 by: 1. No insecticides can be recommended at this time to control pear thrips. Pear thrips have natural enemies in North America (Lewis ), but the importance of such insects in controlling thrips populations is not known. Several kinds of fungal pathogens have been found on pear thrips in the soil (Brownbridge et al. ). Cited Literature Bailey.