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Wednesday, July 29, 2020 | History

1 edition of Reproduction and chemical sterilization of the eye gnat, Hippelates pusio Loew found in the catalog.

Reproduction and chemical sterilization of the eye gnat, Hippelates pusio Loew

by P. H. Schwartz

  • 230 Want to read
  • 34 Currently reading

Published .
Written in English

    Subjects:
  • Control,
  • Chloropidae,
  • Insect pests

  • Edition Notes

    Statementby Paul Henry Schwartz
    The Physical Object
    Paginationv, 60 leaves :
    Number of Pages60
    ID Numbers
    Open LibraryOL25924898M
    OCLC/WorldCa37429901

    Legner, E. F. Attraction of Hippelates eye gnats and other minute Diptera to baits and man with considerations on competitive displacement by exotic non-problem species. Proc. Calif. Mosq. Contr. Assoc., Inc. Oviposition and Emergence Period of the Eye Gnat Hippelates collusor. Mir S. Mulla. Journal of View article; The Effects of Gamma Radiation on Mating Competitiveness and Fecundity of Hippelates pusio Loew. H. M. Flint. Journal of Economic Entomology, Vol Issue 1, 1 Surface Sterilization of Eggs of the Boll Weevil with Cupric.

    A pregnant woman (first trimester) is concerned that she has been exposed to a chemical that blocks estrogen and progesterone receptors so that the body does not recognize these hormones. What is the most important reason she should be worried about this? A) GnRH may be inhibited. B) Luteinizing hormone (LH) may cause the release of another egg. Anterior chamber. The front section of the eye's interior where aqueous humor flows in and out, providing nourishment to the eye. Aqueous humor. The clear watery fluid in the front of the eyeball. Blood vessels. Tubes (arteries and veins) that carry blood to and from the eye. Caruncle. A small, red.

    Human eye - Human eye - The visual process: The first line of protection of the eyes is provided by the lids, which prevent access of foreign bodies and assist in the lubrication of the corneal surface. Lid closure and opening are accomplished by the orbicularis oculi and levator palpebri muscles; the orbicularis oculi operates on both lids, bringing their margins into close apposition in the. Human reproduction is an example of sexual reproduction. In human beings, both males and females have different reproductive systems; hence, they are known to exhibit sexual dimorphism. Males have testes- also called testicles, while the females have a pair of ovaries.


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Reproduction and chemical sterilization of the eye gnat, Hippelates pusio Loew by P. H. Schwartz Download PDF EPUB FB2

Reproduction and chemical sterilization of the eye gnat, Hippelates pusio Loew /Author: P. (Paul Henry) Schwartz. A number of chemical sterilants as well as some antibiotic compounds were evaluated in the laboratory and field for reproduction control in the eye gnat Hippelates collusor (Townsend) and the mosquito Culex quinquefasciatus Say.

Reproduction control here denotes the suppression of fecundity. It is achieved either through the reduction in the number of ova produced or a decrease in their.

Chemosterilization, dispersion and population densities of the eye gnat Hippelates pusio Loew Series Title: Chemosterilization, dispersion and population densities of the eye gnat Hippelates pusio Loew Creator: Williams, David F., Place of Publication: Gainesville FL Publisher: University of Florida Publication Date: " A bait trap of new design is described.

It was used in southwest Georgia to capture large numbers of the Hippelates pusio group (H. pusio Loew and H. bishoppi Sabrosky); other species also captured were easily recognized and removed from collections. In large catches where H. bishoppi was also taken, it was found practical to obtain satisfactory estimates of H.

pusio by weighing the Cited by: 1. The predominant eye-gnat of the Coachella Valley, California, is Hippelates pusio. This paper is an account of an investigation into its life history, carried out over the four years ending Trapping of the flies provided information on foods, colour reactions, altitudes, seasons, etc.

and soil caging yielded information about the immature stages and the types of soil preferred for. The eye-gnat, Hippelates pusio, Lw., is particularly abundant in southern California [cf.

R.A.E., B, xviii,etc.]. Adults are present throughout the year, but are most abundant in spring and autumn. They are not active at temperatures below 70°F. During the hot summer months, they were most numerous in dense shade and appeared to be attracted by moisture.

The eye gnat, Hippelates pusio, is one of the factors limiting development of the Coachella Valley, California; causing much annoyance from its habit of feeding around the eyes and nose of man and animals and being responsible for the prevalence of conjunctivitis, especially among children of pre-school age.

In nature the larvae were found in decaying meat, in excrement, and in decaying fruit. The eye gnat, Hippelates pusio Loew, belongs to the family Chloropidae of the order Diptera.

The taxonomy of the genus Hippelates has been discussed by Aldrich () and Sabrosky (). Hippelates gnats have been linked with the mechanical transmission of yaws (Kumm and Turner, ), conjunctivitis (Herms, ) and bovine mastitis (Sanders.

The following is based almost entirely on the authors' abstract. A bait-trap of new design for collecting adults of Hippelates is described. It consists of a metal cylinder, of height 5 in. and diameter 7 1/2 in. mounted on legs, with the lower end open but covered with screening to prevent the entry of larger insects.

A dish of bait is placed on the screening and a collecting jar, having a. Reproduction and chemical sterilization of the eye gnat, Hippelates pusio Loew. Doctoral Dissertation. Univer- sity of Florida.

Schwarz, E. I The Hippelates plague in Florida. Insect Life. 7: 37^ Snedecor, G. I Statistical Methods Applied to Agriculture and Biology. 5th Edition. The Iowa State University Press, Ames.

M.S. MullaChemosterilants for control of reproduction in the eye gnat (Hippelates collusor) and the mosquito (Culex quinquefasciatus) Hilgardia, 39 (), pp.

Google Scholar. Abstract. The flight activity, based on collections from humans, of Hippelates Pusio eye gnats was measured under varying field conditions. Thresholds for flight were 17°C, mm Hg vapor pressure deficit (VPD), milliphots (5 ft-c) of light and wind velocity below 67 m/min.

Graphs are presented for flight activity at various values of temperature, light, VPD, and wind velocity. Observations on the reproductive system of the eye gnat, Hippelates pusio Loew, fed tepa and metepa ( to percent) and apholate ( to percent) in sugar water indicated that these.

evaluated for their repellency toward HiPpelates pusio Loew with turntables in the field. Some of the materials were also tested against H. bishoppi Sabrosky and H. pal-lipes Loew.

The most effective repellents for H. pusio. were: Triple Mix (% dimethyl phthalate + % [email protected] (buty13,4-dihydro-2,2-dimethyloxo-2H-pyran.

Sterilization (also spelled sterilisation) is any of a number of medical methods of birth control that intentionally leaves a person unable to ization methods include both surgical and non-surgical, and exist for both males and females. Sterilization procedures are intended to be permanent; reversal is generally difficult or impossible.

The population density of H. pusio calculated for a ha ( acres) partially wooded farm was approximately 2 to 5 thousand per ha (acre) or a total of 1 to 3 million gnats. Read more Article. Material Information: Title: Household pests: Series Title: Bulletin: Physical Description: 55 p.: ill.

; 23 cm. Language: English: Creator: Creighton, John Thomas. image/svg+xml art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos Open Access logo, converted into svg, designed by PLoS.

This version with trans. Human Eye: Anatomy, parts and structure. The eye is the photo-receptor organ. Size and shape: Human eye is spherical about cm in diameter. Location: it is situated on an orbit of skull and is supplied by optic nerve. There are 6 sets of muscles attached to outer surface of eye ball which helps to rotate it in different direction.

Mating-related enhancement of oogenesis could be explained either through nutritional benefits to females or male chemical or stimulatory manipulation of the females. Eye Gnat Hippelates pusio. The effect of cobalt 60 gamma rays on the biology of the eye gnat Hippelates Pusio Loew / View Metadata.

By: Flint, Hollis Mitchell, Reproduction and chemical sterilization of the eye gnat, Hippelates pusio Loew / View Metadata. By: Schwartz, P. H. (Paul Henry).1. J Invertebr Pathol.

May;19(3) Histological observations on larvae of the eye gnat, Hippelates pusio (diptera: Chloropidae), infected with the flagellate Herpetomonas muscarum.Retina: (a) The human eye is shown in cross section. The human eye contains structures, such as the cornea, iris, lens, and fovea, that process light so it can be deciphered by the retina.

Other structures like the aqueous humor and the vitreous humor help maintain the shape of the eye. (b) A blowup shows the layers of the retina.