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Articles 6451 - 6480 of 6879
Full-Text Articles in Physical Sciences and Mathematics
My View Of Our Pine Vole Control Problem, Steve Clark
My View Of Our Pine Vole Control Problem, Steve Clark
Eastern Pine and Meadow Vole Symposia
In a recent survey of pine mouse infestation, it was determined that approximately 37% of the orchard land had serious enough damage to warrant control measures. Some growers are using chlorophacinone as a ground spray. We are also putting out tarpaper bait stations and baiting with either Ramik Brown or Rozol pellets. There has been mixed results with both methods and our growers are still looking for a better control method.
Economic Implications Of Using Zinc Phosphide To Replace Endrin In Apple Orchards, Walter L. Ferguson
Economic Implications Of Using Zinc Phosphide To Replace Endrin In Apple Orchards, Walter L. Ferguson
Eastern Pine and Meadow Vole Symposia
Consideration is being given to suspend or restrict the use of endrin for controlling mice in orchards. If endrin were not available for this use, State extension and experiment station personnel in 6 Eastern States and 2 Western States estimated that apple production losses would increase from mice injury on 33,400 endrin-treated bearing acres, (12,500 acres in the Eastern States and 20,900 acres in the Western States). The 6 Eastern States include Georgia, Maryland, North Carolina, South Carolina, Virginia and West Virginia: the 2 Western States are Idaho and Washington. Estimates of production changes without endrin were made assuming zinc …
Survival Rates Of Pine Voles In North Carolina Orchards, Don W. Hayne
Survival Rates Of Pine Voles In North Carolina Orchards, Don W. Hayne
Eastern Pine and Meadow Vole Symposia
There are a number of definitions of control of a pest. One of the competing definitions, and probably the most common even if not accepted in advanced circles, is to kill off the pest. Translated, this says: to increase the mortality rate, preferably to an extreme degree. I am going to talk here about survival rates. A survival rate is just the complement of the mortality rate - if survival is 80 percent, then mortality is 20 percent. It happens to be more generally useful in studying populations to deal with survival rates, so I hope I may be excused …
Development Of Pp581 Rodenticide By Ici-United States, Inc., Dale E. Kaukeinen
Development Of Pp581 Rodenticide By Ici-United States, Inc., Dale E. Kaukeinen
Eastern Pine and Meadow Vole Symposia
The Agricultural Chemicals Division of ICI-US was formed in 1970 and is closely tied with Plant Protection Division (PPD) in England. PPD has world-wide responsibility for research, development and marketing of agricultural crop protection chemicals including herbicides, insecticides, fungicides, nematocides, plant growth regulators, and rodenticides. Past achievements have included 2,4-D, Paraquat, Diquat, and BHC, among others. Experimental compounds from the U.K. are evaluated and developed for the U.S. by the Biological Research Center at Goldsboro, N.C. Facilities on this 250 acre site include fully-equipped laboratories for the formulation, research, development, and residue departments. Field trials can be carried out on …
Pine And Meadow Research In Pennsylvania Relevant To Control In Orchards, Robert G. Anthony
Pine And Meadow Research In Pennsylvania Relevant To Control In Orchards, Robert G. Anthony
Eastern Pine and Meadow Vole Symposia
Results from field studies and questionnaires mailed to commercial orchardists in Pennsylvania indicate use of orchards by wildlife poses management problems for orchardists, horticulturists, county extension agents, and wildlife managers. Data substantiate the detriment of wildlife to orchard trees and fruits as viewed by commercial orchardists. In addition, existing control methods are often inconsistent and ineffective and necessitate use of toxic substances which may have far-reaching environmental effects. Consequently, a need for sounder management of wildlife in orchards is apparent. Studies at The Pennsylvania State University have focused on: (1) surveys on the extent and severity of wildlife damage in …
Apples, Voles And Endrin, Melvin H. Kolbe
Apples, Voles And Endrin, Melvin H. Kolbe
Eastern Pine and Meadow Vole Symposia
Voles damage trees in several ways. They eat the roots, and if the damage is light the apple tree may not show any obvious problem, but the amount of yield loss can be great. If the voles girdle the tree (cut the bark at or near the soil line), they cut the xylem tubes and this will reduce the amount of water and nutrients taken into the tree. When this happens and moisture stress is high, the tree will turn yellow in July (summer months). If injury is serious, the tree top may die, and if the girdling is severe, …
Mouse Control In My Orchard, Everett Lutz
Mouse Control In My Orchard, Everett Lutz
Eastern Pine and Meadow Vole Symposia
There are all kinds of problems in the apple growing business, but among the major problems are Eastern Pine and Meadow Voles. There is no need to elaborate on the damage they can do. Everyone in the orchard business knows the destruction caused by voles. They can completely eradicate an orchard. For twenty (20) years or more Endrin has been used to solve the vole problem. It has done an excellent job.
Mouse Control In My Orchard, Perry Lowe Jr.
Mouse Control In My Orchard, Perry Lowe Jr.
Eastern Pine and Meadow Vole Symposia
The control of mice was by far the most serious problem that I had in producing apples before Endrin became available as a ground spray. I have used Endrin in my orchards every year except one since it became available in our area. The one year that I failed to use Endrin I lost 20% of the trees in one block from mouse damage
Registration Of Pesticides By Epa, Raymond W. Matheny
Registration Of Pesticides By Epa, Raymond W. Matheny
Eastern Pine and Meadow Vole Symposia
A paper to consider current pesticide registration requirements, especially as they pertain to the use of rodenticides in orchards.
Mouse Damage, A Serious Problem For The Virginia Apple Industry, C. Purcell Mccue Jr.
Mouse Damage, A Serious Problem For The Virginia Apple Industry, C. Purcell Mccue Jr.
Eastern Pine and Meadow Vole Symposia
The 1972 Apple and Peach Tree Survey indicated that there were 1.6 million apple trees in Virginia. Dr. J. B. Bell and Dr. J. M. Johnson report that based on information from the Statistical Reporting Service and the Economic Research Service that the average per year market value of the 1973-74-75 Virginia Apple crop was $109,160,000. This value consists of the farm value of $28 million plus packing, storage, processing, and other marketing services. It is estimated that mouse damage to apple trees reduces the output in Virginia by 10% per year or a potential loss of $11,000,000 annually for …
Meadow Vole Control With Ramik Brown, W. B. O'Neal
Meadow Vole Control With Ramik Brown, W. B. O'Neal
Eastern Pine and Meadow Vole Symposia
A considerable amount of information has been generated regarding the use of Ramik for pine vole control. However, in many cases pine and meadow vole inhabit the same orchard. Also, there is some concern on efficacy and/or future availability of present treatments used for controlling meadow vole. With this in mind, many experiments were initiated to study the effect of Ramik on meadow vole. Information regarding three of these experiments is presented in this paper.
Pine Voles (Pitymys Pinetorum) And Orchard Damage Research: An Overview Of The N.Y. Coop Wildlife Research Program In Animal Damage, Milo Richmond, Robert Stehn, Mary Dunlay
Pine Voles (Pitymys Pinetorum) And Orchard Damage Research: An Overview Of The N.Y. Coop Wildlife Research Program In Animal Damage, Milo Richmond, Robert Stehn, Mary Dunlay
Eastern Pine and Meadow Vole Symposia
We began our research effort in 1968 with a project aimed at determining the efficacy of endrin treatment for pine vole control. Grower concerns and a small amount of laboratory data indicated that endrin was no longer as reliable in controlling pine voles as it was in the early sixties. Our initial efforts were twofold. We sought first to determine the existing efficacy of endrin and secondly to evaluate any resistance by pine voles to this chemical control procedure. Unfortunately, this entire endrin research effort was dropped by the Cooperative Research Unit when endrin as well as other persistent chlorinated …
The Role Of The Fish And Wildlife Service Research In Solving The Eastern Pine Vole/Orchard Problem, Richard N. Smith
The Role Of The Fish And Wildlife Service Research In Solving The Eastern Pine Vole/Orchard Problem, Richard N. Smith
Eastern Pine and Meadow Vole Symposia
Many orchardists, nurserymen and Christmas tree grcwers, State extension agents, and a few Fish and Wildlife Service people are aware of the economic problems that pine voles (microtus pinetorum) cause to orchards in the Appalachian Regions of the United States. This is expected for these people have had to deal first hand with economic losses caused by these small mammals. What is unusual and somewhat discouraging is that this problem was identified over forty years ago and that we really know little more about this animal now than we did then.
The Pine Vole Control Problem In Eastern New York Apple Orchards, Warren H. Smith
The Pine Vole Control Problem In Eastern New York Apple Orchards, Warren H. Smith
Eastern Pine and Meadow Vole Symposia
Pine voles have always been a problem in a few orchards in Eastern New York. In the past the vole population was controlled with Endrin, and damage to trees, although significant, was tolerable. From 1970 to 1972 more and more complaints were heard from growers concerning Pine vole damage to apple trees. Apparently as vole populations increased and damage became more serious, the word spread among growers and an awareness within the fruit growing community concerning the pine vole problem was generated. It is interesting to note that during this period when pine voles population seem to increase, Endrin was …
The Need For An Integrated Control Strategy For Orchard Mouse Damage, Robert Stehn, Elizabeth Johnson, Milo Richmond
The Need For An Integrated Control Strategy For Orchard Mouse Damage, Robert Stehn, Elizabeth Johnson, Milo Richmond
Eastern Pine and Meadow Vole Symposia
During the last six years the N.Y. Coop. Wildlife Research Unit has been involved in research on pine voles. Projects have included studies of reproduction in the laboratory, population biology in orchards and testing of pine vole control toxicants. Field work has been restricted to a few orchards in Ulster and Orange counties in the Hudson Valley. Therefore some of the results may reflect local conditions and should be regarded as preliminary in nature. Work involving control procedures has indicated that hand baiting with anticoagulant pellets under previously established bait stations averages 85 percent reduction in pine vole numbers. Anticoagulant …
Pine Vole Control With Herbicides, Roger S. Young
Pine Vole Control With Herbicides, Roger S. Young
Eastern Pine and Meadow Vole Symposia
The pine vole, M. pinetorum, has become the number one problem in many West Virginia orchards. It's deep subterranean tunnel system makes it more difficult to control than other voles. A decade ago the vole population was limited almost entirely to the apple orchard. This undoubtedly correlates to the abundance of vegetative ground cover found in the apple orchard as contrasted to the more cleanly cultivated peach orchard. The cultural methods used in the peach orchard have changed toward a sod culture similar to that of the apple orchard and at the same time the vole problem in the peach …
"Mouse-Ateria" - A Bait Station For Rodents, Bruce Porterfield, Henry J. Eavis
"Mouse-Ateria" - A Bait Station For Rodents, Bruce Porterfield, Henry J. Eavis
Eastern Pine and Meadow Vole Symposia
In 1918 the first device of this kind was designed near Winchester, Virginia. In 1973 we introduced a high strength Styrene plastic version of it, copied from the hand-blown glass model.
Petroleum Hydrocarbons From Effluents: Detection In Marine Environment, John T. Tanacredi Ph.D.
Petroleum Hydrocarbons From Effluents: Detection In Marine Environment, John T. Tanacredi Ph.D.
Faculty Works: CERCOM (1977-2016)
The marine environment has become the primary disposa ground for an increasing quantity of petroleum wastes. Mushrooming demands for petroleum products and the lack of economic incentive to recycle waste oil will increase the concentrations of detrimental petroleum hydrocarbons in the marine environment
Although a continuous, low-level discharge of waste petroleum hydrocarbons into the marine environment may not be as dramatic as a major oil spill, the consequences could be more devastating over an extended period. As noted by Blumer, earlier interpretations of the environmental effects of oil must not be reevaluated in the light of recent evidence of its …
The European Wasp : A New Threat To W.A, Department Of Agriculture, Western Australia
The European Wasp : A New Threat To W.A, Department Of Agriculture, Western Australia
Journal of the Department of Agriculture, Western Australia, Series 4
The European wasp was detected in Western australia for the first time in January and February 1977 in the metropolitan suburbs of Mosman Park, Cottesloe and Attadale.
So far it has only been found within an area of 8 km radius from Fremantle but the outer boundries of the infestation are still uncertain.
It is Department of agriculture policy to eradicate the European wasp, if possible, and to destroy all nests detected.
Saltland And What To Do About It, C V. Malcolm
Saltland And What To Do About It, C V. Malcolm
Journal of the Department of Agriculture, Western Australia, Series 4
Saltland can be conveniently divided into three main types on the basis of cause. Within each type their is great variation, and the types may merge or overlap.
The three aims of a saltland treatment programme are; reduce the groundwater levels or seepage flows as much as possible,reduce the capillary action which brings salt to the surface, and to revegetate the soils with the most useful plants that can survive.
The Florida Coastal Zone Management Program: What, Why, How, Who., Florida Bureau Of Coastal Zone Planning, State Of Florida, Dept. Of Environmental Regulation, Division Of Environmental Programs, Bureau Of Coastal Zone Planning
The Florida Coastal Zone Management Program: What, Why, How, Who., Florida Bureau Of Coastal Zone Planning, State Of Florida, Dept. Of Environmental Regulation, Division Of Environmental Programs, Bureau Of Coastal Zone Planning
Waterways and wildlife
A Florida coastal zone management program, once approved and established, will be a cooperative effort of all levels of government and the citizens of Florida. It will establish coastal land and water resource policies, based on realistic goals and objectives, that contribute to the wise use of those resources and protect the options of future generations. It will be a system that is sensitive to criticism, accessible to review and appeal, and flexible enough to reflect changing goals, needs, attitudes and lifestyles. With this approach we can not only treat current problems, but can also avoid future resource use conflicts. …
Enteric Virus Survival In Package Plants And The Upgrading Of The Small Treatment Plants Using Ozone, Lois S. Cronholm, James R. Mccammon, Marvin Fleischman, Jerry R. Perrich, Valerie Reisser, William Harris, Ronald R. Vanstockum, Khosrow Jaberizadeh, Michael J. Wahl
Enteric Virus Survival In Package Plants And The Upgrading Of The Small Treatment Plants Using Ozone, Lois S. Cronholm, James R. Mccammon, Marvin Fleischman, Jerry R. Perrich, Valerie Reisser, William Harris, Ronald R. Vanstockum, Khosrow Jaberizadeh, Michael J. Wahl
KWRRI Research Reports
Post-chlorinated effluent collected with a portable viral concentrator from four treatment plants in Jefferson County, Kentucky, yielded infective viral particles from three plants from spring through late fall. The pH, ,chlorine, turbidity, and coliform levels of these effluents indicated that viral persistence was correlated with inefficient processing which produced effluent environments that inhibited disinfection by chlorine. The disinfection potential of ozone was tested on secondary effluent and finished water seeded with poliovirus and Esaheriahia coli. Low doses of ozone inactivated viruses and bacteria in treated water, but not in effluent. The inactivation of bacteria by ozone does not appear …
A Review Of The Limnology Of And Water Quality Standards For Lake Mead, Charles R. Goldman
A Review Of The Limnology Of And Water Quality Standards For Lake Mead, Charles R. Goldman
Publications (WR)
1. The waters of Las Vegas Bay, a heavily utilized recreational resource, receive discharges from a variety of municipal and industrial waste sources. The U.S. Environmental Protection Agency has determined, on the basis of numerous studies, that the present water quality violates state and federal standards and constitutes a public nuisance. Consultants have advised the Sewage and Wastewater Advisory Committee that rapid abatement of the alleged pollution conditions can be achieved by an advanced wastewater treatment (AWT) plant.
2. The major problems in Las Vegas Bay are an objectionable water color, excessive turbidity, noxious odors, and oxygen depletion in certain …
Report On Wastewater Disposal To Board Of County Commissioners, Clark County Nevada, Clair N. Sawyer
Report On Wastewater Disposal To Board Of County Commissioners, Clark County Nevada, Clair N. Sawyer
Publications (WR)
This report is concerned with the management of waste-waters and subsurface drainage from the City of Las Vegas and its environs and the BMI complex, all in Clark County, Nevada. The prime objective is to recommend a plan of action which will utilize the natural resources of the area in the least costly manner and still protect Lake Mead for recreational purposes and use as a public water supply, At this writing, conditions in the upper Las Vegas arm of Boulder Basin are quite unsatisfactory for some recreational purposes due to the extensive blooms of algae which develop. Experience at …
Distribution Of Stream Pollution In Lake Water, Richard W. Tew, Samuel S. Egdorf, James E. Deacon
Distribution Of Stream Pollution In Lake Water, Richard W. Tew, Samuel S. Egdorf, James E. Deacon
Publications (WR)
Wastewater effluent-laden waters from Las Vegas Wash (LVW) form a density current that may be detected in Boulder Basin of Lake Mead at considerable distances from the wash estuary. This led to the suspicion that water from the inflowing stream [40 mgd (1.5 X 105 cu m/day)] might not be rapidly diluted in the enormous volume of the lake [19 mil acre-ft (2.3 X 1010 cu m)], but might persist as a recognizable entity to the vicinity of the intake of a major water source for populous Clark County, Nev.
Because of the detection sensitivity implicit in the …
Ua12/2/19 Earth Week, Energy For Student Awareness
Ua12/2/19 Earth Week, Energy For Student Awareness
WKU Archives Records
Newspaper created by the Energy for Student Awareness group regarding Earth Week and environmental issues.
The Nature And Distribution Of Enteric Bacteria In Las Vegas Bay, Samuel S. Egdorf
The Nature And Distribution Of Enteric Bacteria In Las Vegas Bay, Samuel S. Egdorf
Publications (WR)
The distribution of water and of enteric bacteria of possible fecal origin into Las Vegas Bay from Las Vegas Wash was determined. Determination of distribution patterns was attained by applying the concept of the population component ratio of enteric bacteria. The development and application of new techniques and methods implicit in the application of the "component ratio" concept are discussed. The unreliability of thoroughly referenced techniques and methods generally accepted as standard are treated in detail. Physical factors affecting the distribution and deposition of enteric bacteria (including those of special public health importance) in Las Vegas Bay are also discussed.
A Systems Study Of Oil Pollution Abatement And Control For Portland Inner And Outer Harbor, Casco Bay, Maine, Arthur D. Little, Inc.
A Systems Study Of Oil Pollution Abatement And Control For Portland Inner And Outer Harbor, Casco Bay, Maine, Arthur D. Little, Inc.
Maine Collection
A Systems Study of Oil Pollution Abatement and Control for Portland Inner and Outer Harbor, Casco Bay, Maine
to State of Maine, Department of Environmental Protection, State House Augusta, Maine 04330
Appropriation Number 4320-4001
by Arthur D. Little, Incorporated, 20 Acorn Park, Cambridge, Massachusetts 02140 (March 15, 1976).
Contents: Executive Summary / 1. Introduction / 2. Identification of Vulnerable Resources / 3. Potential Oil Spill Locations / 4. Oil Spill Movement / 5. Containment and Disposal Systems / 6. Oil Monitoring Systems / 7. Marine Navigation In Portland Inner and Outer Harbors / Appendices
Wildlife And Vertebrate Pests In Egypt, A. Maher Ali, Hassana Hafez
Wildlife And Vertebrate Pests In Egypt, A. Maher Ali, Hassana Hafez
Vertebrate Pest Conference Proceedings: 7th (1976)
The conservation of Egyptian wildlife is discussed. Control measures are reviewed for rodents and birds, especially the house sparrow. Because of the high dam permanent irrigation has resulted in Arvicanthis becoming a more serious invader of rural buildings.