Open Access. Powered by Scholars. Published by Universities.®

Life Sciences Commons

Open Access. Powered by Scholars. Published by Universities.®

Articles 61 - 87 of 87

Full-Text Articles in Life Sciences

Ec86-1541 Corn Insects — Above Ground Jan 1986

Ec86-1541 Corn Insects — Above Ground

University of Nebraska-Lincoln Extension: Historical Materials

This 4-color extension circular was prepared by Extension entomologists of the North Central States in cooperation with the Federal Extension Service, U.S. Department of Agriculture. It shows the following corn insects:

1. European corn borer (early leaf feeding and mature borers)

2. Southwestern corn borer

3. Common stalk borer

4. Chinch bug

5. Corn earworm

6. Armyworm

7. Corn rootworm beetles (lefet to right: Northern, Western, and Southern)

8. Grasshopper

9. Corn leaf aphid

10. Corn flea beetle and damage


G86-806 Chinch Bug Management (Revised January 1993), Barbara P. Spike, Robert J. Wright, Stephen D. Danielson Jan 1986

G86-806 Chinch Bug Management (Revised January 1993), Barbara P. Spike, Robert J. Wright, Stephen D. Danielson

University of Nebraska-Lincoln Extension: Historical Materials

The life cycle and control of the chinch bug is discussed, with descriptions of possible management options.

The chinch bug is a native North American insect that can destroy cultivated grass crops, especially sorghum and corn, and occasionally small grains, such as wheat and barley. Broad-leaved plants are immune to feeding damage. Crop damage from this insect is most often found in southeast Nebraska and northeast Kansas and is associated with dry weather, especially in the spring and early summer months. Chinch bugs have few effective natural enemies. Ladybird beetles and other common insect predators found in Nebraska prefer to …


G86-792 Spiders, David L. Keith, Stephen D. Danielson, Timothy P. Miller Jan 1986

G86-792 Spiders, David L. Keith, Stephen D. Danielson, Timothy P. Miller

University of Nebraska-Lincoln Extension: Historical Materials

This NebGuide describes the most common species of spiders found in Nebraska, including the black widow and brown recluse, and how to control them.

General Description and Habits

Spiders can be distinguished easily from insects. All spiders have two major body regions and four pair of legs; insects have three body regions and three pair of legs. Spiders vary widely in color, shape, size, and habits. All produce venom that is poisonous to their normal prey. Few spiders are considered dangerous to humans, however. These animals are predacious by nature and use their venom, which is injected through hollow fangs …


G86-790 Fumigating Farm-Stored Grain With Aluminum Phosphide (Revised May 1998), Clyde Ogg, David L. Keith Jan 1986

G86-790 Fumigating Farm-Stored Grain With Aluminum Phosphide (Revised May 1998), Clyde Ogg, David L. Keith

University of Nebraska-Lincoln Extension: Historical Materials

This NebGuide provides step-by-step instructions for fumigating stored grain on the farm with aluminum phosphide.

Fumigants act on all insect life stages. They control pests by diffusing through the air spaces between grain kernels as well as into the kernel itself. Fumigants are able to penetrate into places that are inaccessible to insecticide sprays or dusts.

Regardless of formulation, all fumigants are poisonous and toxic to humans and other warm-blooded animals as well as to insects and other pests. Because fumigant chemicals are highly toxic and hazardous to use, they are Restricted Use pesticides. They can only be used by …


Ec84-1510 Insect Control Guide For Beef Cattle In Nebraska, John B. Campbell Jan 1984

Ec84-1510 Insect Control Guide For Beef Cattle In Nebraska, John B. Campbell

University of Nebraska-Lincoln Extension: Historical Materials

This extension circular contains information on: precautions; insecticide formulations; and insecticide application methods (sprays, pour-ons, spot-ons, self-treatment devices, feed additives, dips, and injections). It contains a table on insecticides and the pests they target such as cattle grub, cattle lice, face fly, horn fly, mosquitoes, and stable fly. It also contains information in a table on the insecticides registered for use on beef cattle which covers the insecticide, percent active ingredient, method of application, dosage and the restrictions.


G84-717 Fleas And Their Management (Revised January 1993), Shripat T. Kamble, David L. Keith Jan 1984

G84-717 Fleas And Their Management (Revised January 1993), Shripat T. Kamble, David L. Keith

University of Nebraska-Lincoln Extension: Historical Materials

This NebGuide provides information on flea biology and how to solve flea problems.

Fleas are among the most annoying pests known to humans. In ancient times, fleas were even indicted, found guilty and sentenced to condemnation. Today, the verdict remains the same.

In Nebraska, fleas are common household pests attacking dogs, cats and sometimes people. In addition to these, several other flea species occur in Nebraska, feeding principally on rodents and occasionally on poultry and livestock. The information provided in this publication will focus primarily on cat and dog fleas, as they are the most commonly encountered species.


G83-638 Strawberry Pests, Timothy P. Miller, David L. Keith Jan 1983

G83-638 Strawberry Pests, Timothy P. Miller, David L. Keith

University of Nebraska-Lincoln Extension: Historical Materials

This NebGuide discusses the more common pests of strawberries in Nebraska, their damage, and recommended control procedures.

Several pests attack strawberries and cause varying types and degrees of injury. Damaging infestations of strawberry pests do not occur in Nebraska in most years. However, control measures are occasionally required to maintain quality, yield, and health of the strawberry bed.


G83-674 Hazardous Waste Management Requirements For Pesticide Applicators (Revised November 1987), Edward F. Vitzthum, Roger E. Gold, Emery W. Nelson, Larry D. Schulze Jan 1983

G83-674 Hazardous Waste Management Requirements For Pesticide Applicators (Revised November 1987), Edward F. Vitzthum, Roger E. Gold, Emery W. Nelson, Larry D. Schulze

University of Nebraska-Lincoln Extension: Historical Materials

This NebGuide is to inform Nebraska pesticide applicators about selected provisions of federal and state hazardous waste laws and regulations.

Congress passed the Resource Conservation and Recovery Act (RCRA) because of widespread indiscriminate disposal of hazardous chemicals. Under provisions of that law, the U.S. Environmental Protection Agency (EPA) has established national standards for proper management of hazardous wastes. "Management," as EPA uses the term, includes generating, transporting, storing, treating and disposing of hazardous waste.


G81-558 Tall Fescue Lawn Calendar (Revised April 2004), Terrance P. Riordan, Roch E. Gaussoin, John E. Watkins, Frederick P. Baxendale Jan 1981

G81-558 Tall Fescue Lawn Calendar (Revised April 2004), Terrance P. Riordan, Roch E. Gaussoin, John E. Watkins, Frederick P. Baxendale

University of Nebraska-Lincoln Extension: Historical Materials

This NebGuide on tall fescue lawns discusses the calendar dates of when to mow, fertilize, water, apply herbicides and pesticides, check for insects and diseases, remove thatch, and when to aerify and overseed.


G81-548 Organic Gardening In The Backyard (Revised June 1990), Dale T. Lindgren, Don Steinegger, Frederick P. Baxendale, John E. Watkins Jan 1981

G81-548 Organic Gardening In The Backyard (Revised June 1990), Dale T. Lindgren, Don Steinegger, Frederick P. Baxendale, John E. Watkins

University of Nebraska-Lincoln Extension: Historical Materials

Successful organic gardening requires consideration of many factors, including resistant cultivars, crop rotation, sanitation, incorporation of organic matter, garden location, and insect and disease control.

Organic gardening is growing in popularity. Although this technique traditionally has been limited to backyard gardens, commercial organic farms now exist in Nebraska. The phrase "organically grown" generally refers to produce grown and processed without the use of synthetic organic chemicals in pesticides, fertilizers, preservatives, or flavorings. The main arguments for organic gardening are that food is less likely to contain potentially harmful chemicals and that fewer chemicals are released into the environment. Arguments against …


G80-521 Common Stalk Borer In Corn (Revised April 2000), Robert J. Wright, Thomas E. Hunt, Keith J. Jarvi Jan 1980

G80-521 Common Stalk Borer In Corn (Revised April 2000), Robert J. Wright, Thomas E. Hunt, Keith J. Jarvi

University of Nebraska-Lincoln Extension: Historical Materials

The life history and appearance of common stalk borers is described, along with information on damage they can cause, economic injury levels and ways to control them in corn.

In the past, the common stalk borer, Papaipema nebris, has not been a major pest of corn in Nebraska. Stalk borer damage in corn commonly is confined to occasional plants in the first few rows near field margins, fence rows, grass terraces and waterways. In addition to attacking corn, this insect attacks over one hundred other species of plants, including ornamentals, broadleaf weeds and grasses. It may feed on soybeans …


G80-517 Kentucky Bluegrass Lawn Calendar (Revised October 1994), Roch E. Gaussoin, Terrance P. Riordan, Garald L. Horse, John E. Watkins, Frederick P. Baxendale Jan 1980

G80-517 Kentucky Bluegrass Lawn Calendar (Revised October 1994), Roch E. Gaussoin, Terrance P. Riordan, Garald L. Horse, John E. Watkins, Frederick P. Baxendale

University of Nebraska-Lincoln Extension: Historical Materials

This publication calendar contains information on mowing, fertilizing, waternig, herbicides, insect control, disease control, thatch removal, aerification, and overseeding of a Kentucky Bluegrass Lawn.


Ec79-1206 Roses, Donald H. Steinegger, Frederick P. Baxendale, John E. Watkins, Amy Greving Jan 1979

Ec79-1206 Roses, Donald H. Steinegger, Frederick P. Baxendale, John E. Watkins, Amy Greving

University of Nebraska-Lincoln Extension: Historical Materials

Roses are one of the most versatile and exciting plant groups to use in landscape compositions. There are rose cultivars (varieties) adapted for almost any garden site or landscape purpose, including formal beds and perennial borders, arbors, trellises, hedges, ground covers, steep banks, edging, accent, specimen plants, and as patio or tub plants.

The most common rose types are hybrid teas, floribundas, grandifloras, and climbers. More people are becoming familiar with the so-called "old fashioned" or shrub roses. Many of these are well-adapted to Nebraska and to water-conserving landscapes.


G77-355 A Guide For The Control Of Flies In Nebraska Feedlots And Dairies (Revised March 1990), John B. Campbell Jan 1977

G77-355 A Guide For The Control Of Flies In Nebraska Feedlots And Dairies (Revised March 1990), John B. Campbell

University of Nebraska-Lincoln Extension: Historical Materials

Flies, especially stable and house flies, can create serious and costly problems for feedlot and dairy operations. This publication describes several methods for control.

Several species of flies may be in confined livestock facilities during summer. The stable and house fly are the most serious pests. Blow flies also may be present if molasses is in the diet. Horn flies--small blood-feeding flies--may be present in early spring. These flies overwinter as pupae in or near manure pats in range or pasture. If cattle are not present in the grassland when horn flies emerge, they will migrate to confinement cattle. Normally, …


G76-292 Home Fruit Spray Schedules (Revised May 1986), Frederick P. Baxendale, Don Steinegger, David Wysong Jan 1976

G76-292 Home Fruit Spray Schedules (Revised May 1986), Frederick P. Baxendale, Don Steinegger, David Wysong

University of Nebraska-Lincoln Extension: Historical Materials

Insects and diseases of home fruit plantings must be controlled to produce quality fruit. Home orchards must be sprayed several times during the growing season. Spraying only a few times will not produce acceptable results for most fruits.

This NebGuide discusses the types of sprays, sprayers, insecticides, insecticides and fungicides used to control insects.


G76-322 How To Handle Insect And Plant Specimens For Identification (Revised March 1985), Luanne Coziahr, Stephen D. Danielson, John Furrer, Don Steinegger Jan 1976

G76-322 How To Handle Insect And Plant Specimens For Identification (Revised March 1985), Luanne Coziahr, Stephen D. Danielson, John Furrer, Don Steinegger

University of Nebraska-Lincoln Extension: Historical Materials

The Nebraska Cooperative Extension Service offers the public a pest/plant identification service. Under this service, insects, weeds, plant diseases, and horticultural plants are identified and, if appropriate, methods for their prevention or control are recommended. Diagnoses of plant problems and control recommendations will be more precise if specimens are handled according to the suggestions offered in this NebGuide.


G74-108 Wilts Of Cucurbits (Revised October 1994), James R. Steadman, David L. Keith, Laurie Hodges Jan 1974

G74-108 Wilts Of Cucurbits (Revised October 1994), James R. Steadman, David L. Keith, Laurie Hodges

University of Nebraska-Lincoln Extension: Historical Materials

Discussion covers the symptoms, disease cycles, and control measures for bacterial and Fusarium wilts of cucurbits, including cucumbers, cantaloupe, watermelons, squash, and pumpkins. Wilt caused by squash vine borer also is covered.


G74-93 Dry Bean, Sugarbeet Insect Control (Revised October 1980), Arthur F. Hagen Jan 1974

G74-93 Dry Bean, Sugarbeet Insect Control (Revised October 1980), Arthur F. Hagen

University of Nebraska-Lincoln Extension: Historical Materials

The success and usefulness of the control measures mentioned in this guide will vary due to methods of application, climatic conditions, and other factors. These recommendations are presented for the benefit of Nebraska farmers. Insecticides should be used with caution and labels should be of recent date. Information in this guide is based on University of Nebraska research results, USDA recommendations and label registrations.


G74-154 Mosquito Control Guide (Revised March 1996), John B. Campbell, David L. Keith, W. Kramer Jan 1974

G74-154 Mosquito Control Guide (Revised March 1996), John B. Campbell, David L. Keith, W. Kramer

University of Nebraska-Lincoln Extension: Historical Materials

Mosquitoes are insects belonging to the order Diptera, the same one as flies. Worldwide there are over 3,000 species of mosquitoes, 150 of which are found in the United States. In Nebraska there are fewer than a dozen important species. Distribution of mosquitoes ranges from the Arctic to the Tropical Rain Forests.

The life cycle, control, and impact of mosquitoes common to Nebraska are discussed.


G74-154 Mosquito Control Guide (Revised August 1983), John B. Campbell Jan 1974

G74-154 Mosquito Control Guide (Revised August 1983), John B. Campbell

University of Nebraska-Lincoln Extension: Historical Materials

The annoying bite of the mosquito not only interferes with human work and leisure time but may also transmit encephalitis. Persisent mosquito attacks on catttle can cause weight loss and force cattle out of river pastures.

The life cycle, control, and impact of mosquitoes common in Nebraska are discussed.


G74-154 Mosquito Control Guide (Revised 1974), John B. Campbell, David L. Keith, W. Kramer Jan 1974

G74-154 Mosquito Control Guide (Revised 1974), John B. Campbell, David L. Keith, W. Kramer

University of Nebraska-Lincoln Extension: Historical Materials

Mosquitoes are insects belonging to the order Diptera. Although there are some 50 species of mosquitoes in Nebraska, fewer than a dozen are important.

This NebGuide discusses the life cycle, control and impact of mosquitoes common to Nebraska.


G73-30 The Alfalfa Weevil (Revised May 1989), Stephen D. Danielson, David L. Keith, George Manglitz Jan 1973

G73-30 The Alfalfa Weevil (Revised May 1989), Stephen D. Danielson, David L. Keith, George Manglitz

University of Nebraska-Lincoln Extension: Historical Materials

The alfalfa weevil is the primary insect pest of alfalfa in Nebraska. Management is essential during years when weevil infestations are high.

Damage from the alfalfa weevil can be severe. The life cycle of this pest and methods of managing it are discussed in this publication.


G73-12 Iris Borer Control (Revised June 1994), David L. Keith, Frederick P. Baxendale Jan 1973

G73-12 Iris Borer Control (Revised June 1994), David L. Keith, Frederick P. Baxendale

University of Nebraska-Lincoln Extension: Historical Materials

This NebGuide discusses the scouting, prevention and control of the iris borer. This insect is the most serious insect pest of iris in Nebraska and is found virtually everywhere in the state. Damage is characterized by dark, streaked, or watery areas and ragged edges on the developing leaves of iris in May and June and extensive destruction of the insides of the rhizomes in July and early August.


G73-62 Webworm Control In Sugarbeets (Revised March 1979), Arthur F. Hagen Jan 1973

G73-62 Webworm Control In Sugarbeets (Revised March 1979), Arthur F. Hagen

University of Nebraska-Lincoln Extension: Historical Materials

The sugarbeet webworm and the alfalfa webworm attack sugarbeets. Frequent outbreaks have been reported in sugarbeets from both species, so they are now generally listed only as "webworms." Their life history, damage and control are similar and are discussed in this publication.


G73-61 Pale Striped Flea Beetle In Sugarbeets And Beans (Revised March 1979), Arthur F. Hagen Jan 1973

G73-61 Pale Striped Flea Beetle In Sugarbeets And Beans (Revised March 1979), Arthur F. Hagen

University of Nebraska-Lincoln Extension: Historical Materials

Only small areas of western Nebraska appear to be troubled by this insect at present, but it appears to be infesting larger areas of sugarbeets each year.

This publication discusses the life history, damage and control of the pale striped flea beetle in sugarbeets and beans.


G73-46 Hessian Fly On Wheat, John E. Foster, Gary L. Hein Jan 1973

G73-46 Hessian Fly On Wheat, John E. Foster, Gary L. Hein

University of Nebraska-Lincoln Extension: Historical Materials

This NebGuide discusses the life cycle, control and prevention of the Hessian fly. Plant-safe dates and resistant wheat varieties are also examined.

The Hessian fly, Mayetiola destructor (Say), is not native to the United States, but was probably introduced by Hessian soldiers during the Revolutionary War. This insect was given its common name by Americans because of its damage on Long Island in 1779. The pest has become distributed throughout the United States wheat production areas since then.

The Hessian fly belongs to the family of insects known as gall midges (Diptera: Cecidomyiidae), a group noted for their habit of …


G73-4 Bagworms (Revised June 1987), Frederick P. Baxendale Jan 1973

G73-4 Bagworms (Revised June 1987), Frederick P. Baxendale

University of Nebraska-Lincoln Extension: Historical Materials

Bagworms can damage juniper, arborvitae, pine, and spruce. Description, life history, and control are discussed in this publication.

The bagworm is native to the United States and is found in eastern Nebraska. Bagworms feed on many species of trees and shrubs, but are most common on junipers. They are rarely a serious problem on deciduous trees, except when larvae move away from evergreens.