Entomology Commons^™

The Α-Glycerophosphate Cycle In Drosophila Melanogaster Iv. Metabolic, Ultrastructural, And Adaptive Consequences Of Αgpdh-1 "Null" Mutations, Stephen J. O'Brien, Yoshio Shimada

Biology Faculty Articles

"Null" mutations previously isolated at the αGpdh-1 locus of Drosophila melanogaster, because of disruption of the energy-producing α-glycerophosphate cycle, severely restrict the flight ability and relative viability of affected individuals. Two "null" alleles, αGpdh-1^BO-1-4, and αGpdh-1^BO-1-5, when made hemizygous with a deficiency of the αGpdh-1 locus,Df(2L)GdhA, were rendered homozygous by recombination with and selective elimination of the Df(2L)GdhA chromosome. After over 25 generations, a homozygous αGpdh-1^BO-1-4stock regained the ability to fly despite the continued absence of …

Population Suppression Of Western Corn Rootworm By Adult Control With Ulv Malathion, K. P. Pruess, John F. Witkowski, Earle S. Raun

Department of Entomology: Faculty Publications

ULV malathion (9.7 oz AI/acre) was applied by air to a 16 square-mile area during August of 1968, 1969, and 1970. Adult Diabrotica virgifera LeConte populations were reduced the following season by 39, 54, and 72%. No economic infestations occurred in the treated area the year following any application. Postspray migration of beetles was very limited, but adult migration during the peak emergence period the following season contributed to repopulation of the treated area. Migration and fecundity appear to be density-dependent factors which favor increases under low populations. Area suppression does not appear economically feasible, but adult control in individual …

The Population Dynamics Of Tanypus Stellatus Coquillett (Diptera: Chironomidae) In Goshen Bay Of Utah Lake, Dennis Kenji Shiozawa

Theses and Dissertations

The population dynamics of Tanypus stellatus in Goshen Bay of Utah Lake was investigated from July 18, 1973, to August 5, 1974. Samples were collected from three stations with an Ekman grab and a K-B corer. The samples were washed in a 110 micron nitex screen and then floated in a sucrose solution. The K-B core was used to determine the vertical distribution of Tanypus stellatus. Ninety-six percent of the Tanypus stellatus larvae are located in the top five centimeters; 99 percent are less than ten centimeters deep. The Ekman grab was used to study the population dynamics of the …

Tarnished And Alfalfa Plant Bugs In Alfalfa: Population Suppression With Ulv Malathion, K. P. Pruess

Department of Entomology: Faculty Publications

ULV malathion (9.7 oz AI/acre) was applied to a 16 mi² area in August 1968, 1969, and 1970 for western corn rootworm, Diabrotica virgifera LeConte, adult control. Nontarget insects in alfalfa, also treated, were monitored. Tarnished plant bug, Lygus lineolaris (Palisot de Beauvois), was reduced 89–98%. Survival of eggs and adult migration resulted in rapid reinfestation of the treated area in 1969 and 1970; adult migration alone was important in 1968. Alfalfa plant bug, Adelphocoris lineolatus (Goeze), was reduced 96–98%. Repopulation following the 1969 and 1970 treatments was by development from eggs surviving the treatment. The 1969 treatment resulted …

The Ecology Of The Dominant Tick Species In The Northwestern Portion Of The Dismal Swamp National Wildlife Refuge, Mary Keith Garrett

Biological Sciences Theses & Dissertations

Elements of the ecology of the two dominant man-biting ticks were studied during 1971-1973 in two locations in Southeastern Virginia, namely, what is now the Dismal Swamp National Wildlife Refuge and Newport News City Park. Tick species composition, relative abundance, density, and distribution in the two areas were compared. In addition, the Dismal Swamp locality was used as a test area for studies on the survival of native, lab reared and translocated Dermacentor variabilis (Say) and Amblvomma americanum (L.) in relation to selected abiotic factors. The Newport News locality served as a control area for these studies.

The species …

Beekeeping In South Dakota, R.J. Walstrom, B.H. Kantack, W.L. Berndt

SDSU Extension Circulars

Beekeeping has provided many persons with a satisfying and continually interesting hobby. To others it means a profitable sideline easily fitted to a farming or other full-time occupation. The commercial beekeeper finds that this phase of agriculture provides him with an independent and respectable way of making a comfortable living. The purpose of this bulletin is to provide persons who are interested in starting a few colonies of bees a source of basic information suited to the Northern Great Plains conditions. South Dakota provides the essential natural ingredients for the production of sizable crops of high quality honey. Honey bees …

Effects Of Mosquito Control Chemicals On Aquatic Fauna, J. L. Lancaster Jr., M. V. Meisch

Arkansas Water Resources Center Technical Reports

No mosquito abatement districts have ever been organized in Arkansas. Mosquito control efforts have been largely adulticiding operations by either aerial application or ground thermal fogging machines. Practically no chemical applications have been directed at the larval stage in residual water in ditches and depressions from which adult populations arise. Some larviciding with ethyl parathion has been done in ricefields. Although the treatment is very effective in mosquito reduction, voluntary treatment has not been completely successful. Because relatively little insecticide has been used as a larvicide in Arkansas, it was possible to evaluate the effect of recommended larvicides on non-target …

Antioxidants For Corncob Grit-Soybean Oil Bait Used To Control Imported Fire Ants, D. P. Jouvenaz, W. A. Banks, C. S. Lofgren, D. M. Hicks

Entomology Papers from Other Sources

Antioxidants were evaluated for their potential for retarding the development of rancidity, a major factor affecting field life of fire ant bait. In a modification of the method of Lofgren et al. (1961. Imported fire ant toxic bait studies: the evaluation of various food materials.

Color And Light Intensity Preferences Of Four Species Of Alate Cereal Aphids, Donald A. Dickmann

Electronic Theses and Dissertations

Color and light intensity preferences of 4 species of alate cereal aphids, the English grain aphid, Macrosiphum avenae (Fab.); oat bird-cherry aphid, Rhopalosiphum padi (L.); corn leaf aphid, R. maidis (Fitch); greenbug, Schizaphis graminum (Rondani); were tested under controlled conditions. No significant differences in color response were found between post-teneral (flight-active) and flight-exhausted alates of any species. Macrosiphum avenae, R. maidis, and S. graminum showed a distinct preference for yellow; R. padi usually preferred green. Alates of all species preferred high light intensities to low within the range tested (350-3500 ft-c). Preferred colors (yellow and green) were more important than …

Corixidae (Water Boatmen) Abundance And Contribution To Littoral Zone Fish Forage In Lake Poinsett, South Dakota, Richard Lee Applegate

Electronic Theses and Dissertations

Corixids were sampled each week in littoral zone areas of Lake Poinsett during the open water seasons, April-October, in 1970, 1971, and 1972. Fish were sampled each week in littoral zone areas in 1970 and food habits studies were conducted to determine if fish predation would influence corixid population dynamics. Seven genera and 15 species of the family Corixidae were collected. Major indigenous species were Palmarcorixa buenoi Abbott, Trichocorixa borealis Sailer, Cenocorixa dakotensis (Hungerford), and Sigara conocephala (Hungerford). Species migrating to Lake Poinsett in the fall to overwinter were Sigara alternata (Say), S. solensis (Hungerford), S. bicoloripennis (Walley), Hesperocorixa vulgaris …

Response Of Soybean Insects To Foliar Applications Of A Chitin Synthesis Inhibitor Th 6040, S. G. Turnipseed, E. A. Heinrichs, R. F. P. Da Silva, J. W. Todd

Department of Entomology: Faculty Publications

The activity of TH 6040, a chitin synthesis inhibitor, was determined against velvetbean caterpillar, Anticarsia gemmatalis Hübner, and other soybean defoliators in field tests in Georgia, South Carolina, and Brazil. Single applications at rates as low as 75 g AI/ha afforded adequate initial and excellent residual control of A. gemmatalis and some suppression of low populations of Plusia spp. Two applications at higher rates gave significant control of soybean looper, Pseudoplusia includens (Walker), and showed promise against green cloverworm, Plathypena scabra (F.), and Mexican bean beetle, Epilachna varivestis Mulsant. Populations of geocorids and nabids were lower in 1 test, possibly …

Determination Of The Ld-50 Level For 2,4-D On Wild Type Culex Pipiens Mosquito Larvae In Illinois, William H. Ettinger

Masters Theses

The LD-50 levels for 2,4-D and Ronnel were determined and compared on the larvae of Culex pipiens Linneaus mosquitoes. The World Health Organization technique for the 24 hour bioassay was employed. Ronnel served as an indicator of susceptibility to pesticides and it was found that 2,4-D is toxic to mosquito larvae with an LD-50 level of 1.95 p.p.m. It was also found that a concentration of 20 p.p.m. ethanol or greater causes lethality in the larvae.

Fruit Fly Control In Table Grapes, Western Australian Department Of Agriculture

Viticulture factsheets

Fruit fly can be a major pest for commercial table grape growers and may result in serious financial loss if adequate control measures are not taken. Unless a concentrated effort is made by all growers, fruit fly will remain a problem.

Nematosporaceae (Hemiascomycetidae): Taxonomy, Pathogenicity, Distribution, And Vector Relations, Lekh R. Batra

Ba

For almost a century (42, 139) certain yeast, or yeastlike parasites of fruits and seeds have been known. They occur on a wide variety of crop plants and cause such diseases as stigmatomycosis," "yeast-spot," "eye spot," and "internal rot." They seemingly represent a phylogenetic unit. They have cylindrical or pyriform asci, and the hyaline ascospores often are characteristically arranged in two fascicles lying end to end. All have acicular ascospores. (See figs. 2, a-c; 5 , c; 11, hand i; 12, A; 13, c-h; 15,j-k.) They have similar habitats, and several species may simultaneously occur in the same fruit or …

Toxicity Of Pesticides And Other Agricultural Chemicals To Honey Bees, E. L. Atkins, E. A. Greywood, R. L. Macdonald

An

The California beekeeping industry of more than 600,000 colonies produced in 1965 an income of nearly $8,500,000 (Stanger, 1966). In addition, honey bees are annually used to pollinate California crops worth $200 million. For the past 80 years this import

Ultrastructure Of Histochemically Localized Cholinesterases In Central And Peripheral Nervous Systems Of Two Insects: Periplaneta Americana L. And Acheta Domestica L, Clifford James Stratton

Theses and Dissertations

Cholinesterase (ChE) was histochemically localized by three methods in the sixth abdominal ganglion and the femur of crickets and cockroaches using light and electron microscopy. The light microscopy showed that ChE in insect femur could be readily demonstrated. The ultrastructural data showed enzyme activity: in ganglion - neural lamella, perineurium, axolemma, inside axons, along glia and at probable synapses; in peripheral nerves - in glial cells, sarcoplasmic reticulum, T-system, axolemma, sarcolemma and at neuromuscular junctions. All activity was inhibited with 10-4 eserine except in the neural lamella, suggesting cholinesterase at all of the above sites except the neural lamella where …

Path-Coefficient Analysis Of Correlation Between Honey Bee Activity And Seed Yield In (Allium Cepa L.), N. S. Shasha'a, William P. Nye, W. F. Campbell

All PIRU Publications

A path-coefficient analysis was used to furnish information on the inter-relationships of pollinating insect activity and components of seed yield in inbreds of Allium cepa L. The inbreds differed very significantly in their attentiveness to pollinating insects. Only one inbred exhibited a significant correlation (P <0.05 positive) between numbers of honey bees and seed yields. Separating the correlation coefficients into components of direct and indirect effects indicated that pollination attractiveness was not the limiting factor in seed set for inbreds in the experiment. Moreover, most of the variation in seed yield could be attributed to indirect effects on the components of yield, umbels per plant, flowers per umbel, percent per fertilized flower, and seeds per fertilized flower.

Seasonal Abundance Of The European Corn Borer Ostrinia Nubilalis (Hbn.) Within The North Central United States, R. E. Hill, H. C. Chiang, A. J. Keaster, W. B. Showers, G. L. Reed

Nebraska Agricultural Experiment Station: Historical Research Bulletins

Annual changes in corn borer populations in the North Central States were measured as a phase of a Regional Project, NC-20, entitled "Factors Influencing Corn Borer Populations" in Minnesota, Iowa, Kansas, Nebraska, Missouri and Ohio over a period of years. Standardized procedures were followed to estimate the seasonal abundance of the European corn borer, Ostrinia nubilalis (Hbn.), under cropping procedures in different locations within the North Central States. The primary purpose of the present bulletin is to present results for the 1965 to 1969 period and to compare these results with the previous 10 years and thus attempt to analyze …

Control Of Loopers On Snap Beans, Elvis A. Heinrichs, E. E. Burgess, Charles L. Mullins, W. J. Vanlandingham

Department of Entomology: Faculty Publications

Snap beans, Phaseolus vulgaris L., are important to the economy of Tennessee. According to the publication, Tennessee Agricultural Statistics, 13,000 acres were grown in Tennessee in 1971 with a value of $2,984,000. Tennessee produces 5.9% of the beans grown in the United States and ranks fifth in the nation in snap bean production. Tennessee-grown beans are processed in Tennessee and in nearby states. In 1972 demand was up because of poor growing weather in the adjacent bean producing states. Most beans in Tennessee are grown on the Cumberland Plateau, Sequatchie Valley, and in extreme northeast Tennessee. In recent years, looper …

Control Of The Army Cutworm On Alfalfa In Nebraska, G. R. Manglitz, J. M. Schalk, L. W. Andersen, K. P. Pruess

Department of Entomology: Faculty Publications

The army cutworm, Euxoa auxiliaris (Grote), is a frequent early spring pest of alfalfa in the western Plains States. Good control with endrin was reported by Burkhardt (1954), Pfadt (1955), and DePew (1959). Also, endosulfan appeared to give good control on alfalfa (Pfadt 1960) and on small grains (K. P. Pruess, 1959, University of Nebraska, Department of Entomology, unpublished report) but not on sugarbeets (DePew 1959). The purpose of the present study was to test some of the newer insecticides, particularly those that have been effective against other species of cutworms. Three tests were conducted at various locations in south-central …

Synanthropic Spiders Araneae Of The Twin Cities Area, Bruce Cutler

Journal of the Minnesota Academy of Science

A review of those spiders which are most likely to enter manmade structures or which occur on highly disturbed ground is presented. The nine species which are dependent on man's activities are discussed in more detail. Along with the species names there is a reference to illustrations in two available field guides to aid in identification.

The Bees Of Curlew Valley (Utah And Idaho), George E. Bohart, G. F. Knowlton

All PIRU Publications

In America north of Mexico there are an estimated 4,000 species of bees distributed in approximately 110 genera. In Curlew Valley, 132 species in 33 genera have been identified, and approximately 25 additional unidentified species have been collected. It is likely that at least 225 species in 40 genera should be found eventually. The bee fauna of Curlew Valley can be roughly divided into the following 4 categories on a seasonal basis.

Fisheries Report No 12 - Results Of A Biological Survey Of A Proposed Wildlife Sanctuary At Dragon Rocks Near Hyden, Western Australia, N. L. Mckenzie, A. A. Burbidge, N. G. Marchant

Fisheries Research Reports

In 1972, three visits were made to an area of vacant crown lam 30 kilometres south-south~east of Hyden, Western Australia.

A preliminary survey was made in April 1972 and following this recommendations were made on the equipment and staff required for a detailed survey of the vegetation and animals.

From the 30th July to the 4th August 1972, a team from the Fauna Research Branch of the Department of Fisheries and Fauna began a detailed fauna survey.

Between the 20th August and the 25th August 1972, the fauna survey was continued am a botanist from the Western Australian Herbarium undertook …

Systemic Insecticides Effective Against Poplar Tentmaker In Cottonwood Plantations, Jack E. Coster

Faculty Publications

No abstract provided.

Insect Pollination And Seed Set Of Onions (Allium Cepa L.), William P. Nye, N. S. Shasha'a, W. F. Campbell, A. R. Hamson

All PIRU Publications

No abstract provided.

Chemicals For Argentine Ant Control, Clee Francis Howard Jenkins, P. N. Forte

Journal of the Department of Agriculture, Western Australia, Series 4

The Argentine ant is one of the most serious ant pests in the world and as such, has been the subject of large-scale control campaigns in several countries.

Early control measures against the Argentine ant in Western Australia involved quarantine of infected areas and the use of arsenical baits, based mainly on the so-called U.S. Government formula.

Since this time the hunt has been on for a more effective chemical, without undesirable effects.

Natural Control Of Insect Pests On The Ord?, P J. Michael

Journal of the Department of Agriculture, Western Australia, Series 4

Current trials conducted by the Department of Agriculture at Kununurra are indicating that there may be an important place for biological control of insect pests of the Ord River Irrigation Area.

The Eriophyoidea Of South Dakota, Magdalena Lopez Briones

Electronic Theses and Dissertations

This paper presents the results of the taxonomic investigation of the Eriophyoidea in South Dakota. Information is given on the morphology, discussion of variation within a population, distribution, damage in host plants, economic importance and techniques of collecting and preparing specimens. There are 42 previously described species included in this study. Of the 48 species studied, six are new. Species described are: Aculops maximilianae, Diptacus pengsonae, Eriophyes arceosae, Eriophyes taylori, Tegonotus lindenus, and Tetra mcdanieli.

Biology Of The Flea Beetle, Altica Carduorum Guer. (Coleoptera: Chrysomelidae) On Canada Thistle, Cirsium Arvense (L.) Scop., In South Dakota, Burton Danis Schaber

Electronic Theses and Dissertations

A laboratory colony of Altica carduorum Guer. was established from a stock colony of 50 adult beetles. They had an average previposition period of 7 days when exposed to a regular cycle of 16 hr. of light (24° C) and 8 hr. of darkness (12.75° C). Under these conditions, females laid an average of 259.3 ± 9.7 eggs, and longevity averaged 100 days. The eggs are laid on the underside of leaves along edges of leaf veins throughout June. Adults fed and overwintered in the soil, and some beetles emerged the following spring and laid viable eggs. Laboratory studies indicate …

Comparative Study Of The Photopositive Coleoptera Of The Embarras River Floodplain And Upland Ridge, Ann Decker

Masters Theses

No abstract provided.