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Sunday, August 2, 2020 | History

3 edition of Key to large lepidopterous larvae on new foliage of Douglas-fir and true firs found in the catalog.

Key to large lepidopterous larvae on new foliage of Douglas-fir and true firs

by V. M. Carolin

  • 174 Want to read
  • 13 Currently reading

Published by USDA Forest Service, Rocky Mountain Forest and Range Experiment Station in Fort Collins, Colo .
Written in English

    Subjects:
  • Caterpillars -- Identification,
  • Douglas fir -- Diseases and pests

  • Edition Notes

    StatementV.M. Carolin, Jr., and Robert E. Stevens
    SeriesResearch note RM -- 401
    ContributionsStevens, Robert E., 1928-, Rocky Mountain Forest and Range Experiment Station (Fort Collins, Colo.)
    The Physical Object
    Pagination4 p. :
    ID Numbers
    Open LibraryOL13564924M

    interferes with natural enemy activity. Young larvae feed gregariously and skeletonize foliage. As they mature, larvae become solitary and eat large irregular holes in foliage. They also burrow into the crown or center of the head on lettuce, or on the buds of cole crops. As a leaf feeder, beet armyworm consumes much more cabbage tissue than the. true, however, for some lepi-dopterous larvae boring in weeds and but in a large series of larvae the char- is at once seen to be inadequate and unreliable. As to the morphology lepidopterous larva occurring in smart- weed as Lederer's obumbratalis (8, p. ). Heinrich (12, p.

    LepIntercept is a comprehensive resource for identifying intercepted Lepidoptera larvae and includes identification keys, detailed fact sheets, tutorials on larval morphology, information on studying Lepidoptera larvae, a full glossary, and a complete set of references. LISTOFTABLES Table teristicsofpeanutfieldsusedin survey,AlachuaCounty,Florida, 30 veabundanceoflepidopterouslarvae.

      Lasiocampidae (lappet moths) -- larvae feed on the leaves of trees and some spin large webs or tents on the foliage. Pests include the eastern tent caterpillar (Malacosoma americana) and the forest tent caterpillar (M. disstria). Saturniidae (giant silk moths) large, colorful moths. Larvae feed on a wide range of trees and shrubs. Lepidoptera (/ ˌ l ɛ p ɪ ˈ d ɒ p t ər ə / LEP-i-DOP-tər-ə, from Ancient Greek lepís “scale” + pterón “wing”) is an order of insects that includes butterflies and moths (both are called lepidopterans).About , species of the Lepidoptera are described, in families and 46 superfamilies, 10 per cent of the total described species of living organisms.


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Key to large lepidopterous larvae on new foliage of Douglas-fir and true firs by V. M. Carolin Download PDF EPUB FB2

Key to large lepidopterous larvae on new foliage of Douglas-fir and true firs / Related Titles. Series: Research note RM ; By. Carolin, V. (Valentine M.), Stevens, Robert E., Rocky Mountain Forest and Range Experiment Station (Fort Collins, Colo.) Type.

Book Material. Key to large lepidopterous larvae on new foliage of Douglas-fir and true firs. Fort Collins, Colo.: USDA Forest Service, Rocky Mountain Forest and Range Experiment Station, [] (OCoLC) Material Type: Government publication, National government publication: Document Type: Book: All Authors / Contributors.

Key to large lepidopterous larvae on new foliage of Douglas-fir and true firs. Fort Collins, Colo.: USDA Forest Service, Rocky Mountain Forest and Range Experiment Station, [] (OCoLC) Material Type: Document, Government publication, National government publication, Internet resource: Document Type: Internet Resource, Computer File.

RM-RN Key to large lepidopterous larvae on new foliage of Douglas-fir and true firs. RM-RN A collapsible quail trap. RM-RN Effects of southwestern ponderosa pine mortality on potential wood product recovery.

RM-RN Plant species adaptability on mine spoils, in the Southwest: a case study. Key to large lepidopterous larvae on new foliage of Douglas-fir and true firs / By V. (Valentine M.) Carolin, Robert E. Stevens and Colo.) Rocky Mountain Forest and Range Experiment Station (Fort CollinsCited by: 1.

Key to small lepidopterous larvae in opening buds and new shoots of Douglas-fir and true firs. USDA For. Servo Res. Note RM Rocky Mtn.

For. and Range Expt. Stn., Ft. Collins, Colorado. 4 pp. Key to large lepidopterous larvae on new foliage of Douglas-fir and true firs. USDA For. Servo Res. Note RM Rocky Mtn. For. and Range. America, the key and fact sheets can help confirm or refute the identification.

The reverse is not true. Keys for intercepted Lepidoptera are not designed to identify random unknown larvae outside the ports. This situation was pointed out by Solis () and it still remains a valid warning. Be careful when only. By these means those concerned should be able to identify without undue difficulty most of the moth larvae they are likely to encounter.

Altogether 35 out of some 70 species which have been found associated with stored products in all parts of the world, can be positively identified by means of the keys and descriptions given in this paper.

Several caveats are in order. This key works best with late instar larvae. Early instars of S. frugiperda and S. exigua (“Laphygma” group) might key out correctly. Conversely, if the larva is a middle instar (about mm) with a swollen thorax (“Prodenia” and “Xylomyges” groups), this key cannot be used.

The first instars of. They feed exposed on foliage. Hairy carpet beetle larva (e) are scavengers that feed on plant and animal products. They may be found in stored products or natural fibers, such as cotton or wool. Picture Key to Larval Insect Types: Section 1 (click for larger picture) SECTION 2: Larvae.

Key to Small2 Lepidopterous Larvae in Opening Buds and on New Shoots of Douglas-fir and True Firs A. Larvae with 2 pairs of prolegs, moving with an inching or looping motion based on use of anal prolegs.

Section I. Geometridae B. Larvae with 5 pairs of. Properties and Uses: Douglas Fir essential oil is strongly antiseptic and indicated for respiratory can be used as a local disinfectant. This is one of the most lemon-scented of the ‘Firs’, with a powerful sweet, fresh, refreshing odor, well.

This banner text can have markup. web; books; video; audio; software; images; Toggle navigation. A key to common Lepidopterous larvae feeding on aspen foliage in Ontario. O.H. Lindquist W.J. Miller. Abstract. This paper has been withdrawn. Enter search terms: Select context to search: Advanced Search Notify me via email or RSS; Browse.

Research Centers and Departments. Departments. opment: egg, larva, pupa and adult. Larvae, known as caterpillars, have chewing mouthparts and molt sever-al times during growth.

Larvae have three pairs of true legs on the front body segments and two to five pairs of false legs (prolegs) on the rear segments. Mature lar-vae. The classification of lepidopterous larvae, By.

Fracker, Stanley Black, Publication Details. Urbana,University of Illinois,c Year. Holding Institution. Smithsonian Libraries. Sponsor. Smithsonian. If you are generating a PDF of a journal article or book chapter, please feel free to enter the title and author information.

Keys to SomeLepidopterous Larvae Foundin Gardens and Homesin Hawaii* BY O. SWICZJJY Experiment Station, H.S.P.A., Honolulu (Presented at the meeting of August9, ) KEY TO FAMn/LES 1. Caterpillars large, more than two inches; a long pointed dorsal horn on 8th abdominal segment Sphingidae Caterpillars less than two inches 2 2.

The larvae and sometimes the adults of a few species are used for food. The larvae of one skipper (Rhopalocampta libeon, or Caeliades libeon) are collected in large quantities in the Congo, and the cm (4-inch) caterpillars of giant skippers (family Megathymidae), known in Mexico as gusanos de magüey, are both consumed domestically and.

Key to the larval stages of aquatic true flies (Diptera), based on sons: A large number of Diptera larvae are still unk-nown or undescribed and the identification of many genera and species is only possible with a considera-ble preparatory effort.

Even then, determinations can. Key Wildlife Value: Primarily grand fir, white fir, and Douglas-fir, but also other true firs, Engelmann spruce and western larch. During outbreaks, larvae also may feed on understory non-host tree species, such as pines or hemlocks.

(Btk) is a microbial insecticide specific to lepidopterous larvae that is registered for use against the. See what's new with book lending at the Internet Archive. A line drawing of the Internet Archive headquarters building façade. An illustration of a magnifying glass.

An illustration of a magnifying glass. An illustration of a horizontal line over an up pointing arrow.The median concentrations of small and large ions were and cm-3, respectively, (sum of positive and negative polarities), whereas the median concentration of intermediate ions was only 20 cm-3, as these ions were mostly present during new particle formation bursts, i.e.

when gas-to-particle conversion produced fresh aerosol particles. The classification of lepidopterous larvae [Fracker, Stanley Black] on *FREE* shipping on qualifying offers. The classification of lepidopterous larvaeAuthor: Stanley Black Fracker.