Browsing by Subject "Major entomology"
Now showing items 1-20 of 94
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(Texas A&M University. Libraries, 1980)During a 4-year period, plant resistance in sorghum to Contarinia sorghicola was studied. Experiments were conducted (1) to determine the relative level of resistance to the sorghum midge possessed by selected lines ...
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(Texas A&M University. Libraries, 1987)Field studies were conducted on the solitary ground nesting bee species, Agapostemon angelicus Cockerell (Hymenoptera: Halictidae), a pollinator of potential value in hybrid cotton production programs on the Texas High ...
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(Texas A&M University. Libraries, 1965)The objective of the study was to evaluate the efficiency and suitability of biological analyses of residues of endrin, diazinon, naled, and carbaryl insecticides on sorghum grain. Two methods of biological assay were found ...
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(Texas A&M University. Libraries, 1980)A triple mutant strain of the house fly, Misca domestica L., with 3 visible recessive genes, ar, stw, and car, on chromosome II was developed. With this strain, genetic tests were made to determine the order and map positions ...
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(Texas A&M University. Libraries, 1995)The feasibility of developing effective rearing and cold storage procedures for Aphelinus perpallidus (Gahan), a hymenopteran parasite of the blackmargined aphid of pecan, Monellia caryella (Fitch), was investigated. The ...
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(Texas A&M University. Libraries, 1985)Field studies were conducted on the Banks grass mite (BGM), Oligonychus pratensis (Banks), infesting commercial field corn in the Texas High Plains. The population dynamics and spatial distribution of BGM and its associated ...
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(Texas A&M University. Libraries, 1970)The biology and control of the pecan weevil, Curculio caryae (Horn), was studied at Junction, Menard, and College Station, Texas, 1965-69. Data from field and laboratory studies were used to compute life tables for the ...
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Biology and distribution of staphylinid beetles associated with bovine feces in south central Texas (Texas A&M University. Libraries, 1985)The staphylinid fauna of a south central Texas pasture was identified. Species composition were compared in two habitats; open and wooded pasture. Over 27,000 specimens of Staphylinidae were captured during a field study ...
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(Texas A&M University. Libraries, 1969)Rate of development of the tarnished plant bug, Lyqus lineolaris (Beauvois), in the laboratory was found to be influenced by temperature. Duration of the incubation period ranged from an average of 5.2 days in 32 C to 17.5 ...
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(Texas A&M University. Libraries, 1971)The developmental cycle, habits, host associations, and control of the chigger Neoschongastia americana (Hirst) was studied. Laboratory rearings of the chiggers were conducted at 70°, 80°, and 90° F in total darkness and ...
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(Texas A&M University. Libraries, 1977)The present study, conducted 1n the Lower R1o Grande Valley of Texas during 1972-1975, Is concerned with various biological and ecological aspects of the sugarcane borer. Principal areas of Investigation Include egg and ...
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(Texas A&M University. Libraries, 1991)In Chambers County, Texas, Culex salinarius larvae were widely distributed and found in a variety of aquatic habitats during cooler times of the year. However, during the summer they were generally restricted to cool aquatic ...
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(Texas A&M University. Libraries, 1986)
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(Texas A&M University. Libraries, 1975)Females of Psorophora confinnis (Lynch-Arribalzaga) deposit their eggs in a variety of microhabitats that exist in the Texas riceland environment. These microhabitats include ones associated with: (1) rice field and pasture ...
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(Texas A&M University. Libraries, 1986)The expression of Campoletis sonorensis Virus (CsV) in the parasitized host, Heliothis Virescens, was investigated. At least 12 major CsV mRNAs were detected in parasitized H. virescens larvae between 2 hours and 9 days ...
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(Texas A&M University. Libraries, 1970)The attractive principle responsible for aggregation of populations of the southern pine beetle, Dendroctonus frontalis Zimmermann, consists of two insect-produced compounds, frontalin and trans-verbenol, and volatiles ...
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(Texas A&M University. Libraries, 1995)Laboratory experiments were designed to identify distinct biological attributes that might separate and help clarify the taxonomic status of one indigenous and six exotic populations of Diaeretiella rapae (M'Intosh). ...
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(Texas A&M University. Libraries, 1969)Chromosome patterns in excised gonads from laboratory-reared Mexican Boophilus annulatus (Say), B. microplus (Canestrini) and their reciprocal F₁ hybrids were studied. Mitotic and meiotic divisions were observed in males ...
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(Texas A&M University. Libraries, 1987)Potato leafroll virus (PLRV) was aphid-transmitted from potato (Solanum tuberosum cultivar Russet Burbank) to ground cherry (Physalis floridana), where it was maintained by serial aphid transmission. Serological and plant ...
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(Texas A&M University. Libraries, 1970)Similarities and differences in the biology, behavior and hemolymph proteins of the two closely related species, the bollworm, Heliothis zea (Boddie) and the tobacco budworm, Heliothis virescens (F.) were investigated. ...