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Wednesday, May 13, 2020 | History

3 edition of Identification of insect and mite pests of alfalfa and clover. found in the catalog.

Identification of insect and mite pests of alfalfa and clover.

Identification of insect and mite pests of alfalfa and clover.

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Published by Cooperative Extension, College of Agriculture, Washington State University in Pullman, Wash .
Written in English

    Subjects:
  • Alfalfa -- Diseases and pests,
  • Clover -- Diseases and pests

  • Edition Notes

    SeriesEB -- 1010., Extension bulletin (Washington State University. Cooperative Extension) -- 1010.
    ContributionsWashington State University. Cooperative Extension., United States. Dept. of Agriculture.
    The Physical Object
    Paginationiii, 14 p. ;
    Number of Pages14
    ID Numbers
    Open LibraryOL17614692M
    OCLC/WorldCa41797901

    Thought to be of Asian origin, the alfalfa weevil was introduced into the United States from southern Europe. First discovered in in Utah, it is now present in all 48 mainland states. Annually, insect pests of alfalfa, including the alfalfa weevil and potato leafhopper, cause hundreds of millions of dollars in losses. Alfalfa weevil, (Hypera postica), insect pest of the family Curculionidae (order Coleoptera) whose larvae damage crops, most often alfalfa and originally from Asia, the alfalfa weevil was introduced from Europe into the United States in the early 20th century and is now present in all 48 mainland states.

      Goals / Objectives To better manage insect pests of alfalfa, we propose to (1) access the overall abundance of and damage by primary alfalfa insect pests in Delaware and perform analyses to see whether there are any synergistic effects between the different species in the pest complex, (2) to establish economic thresholds for potato leafhopper in resistant . Integrated Pest Management for Various Insect Pests in Grass and Alfalfa UCCE-Tom Getts Some Slides and Data Courtesy of: Steve Orloff UCCE, Nicole Stevens UCCE, Rachael Long UCCE and Brad Hanson UC DavisFile Size: 5MB.

    About this book. The Compendium of Alfalfa Diseases and Pests, Third Edition, is the most comprehensive diagnostic reference guide to date on the many diseases and insect pests of alfalfa, one of our most important forage easy-to-use book includes comprehensive diagnostic and management information on nearly 50 infectious diseases, non-infectious . Mite Pests of Field Crops We review the advances made in our understanding of the biology and ecology of major insect and mite pests of tea, host plant resistance, cultural practices.


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Identification of insect and mite pests of alfalfa and clover Download PDF EPUB FB2

Year-Round IPM Program for Alfalfa (3/17) Established stands. Planting and establishing a stand. Stand establishment. Growth to first cutting. UC IPM Pest Management Guidelines. University of California's official guidelines for pest monitoring techniques, pesticides, and nonpesticide alternatives for managing pests in agriculture, floriculture.

Department of Entomology W. Waters Hall Old Claflin Place Kansas State University Manhattan KS fax [email protected] Dr. Subba Reddy Palli Department Chair & State Entomologist S Agricultural Science Center North Lexington, KY [email protected] Alfalfa, Medicago sativa, is an herbaceous perennial in the plant family Fabaceae (peas and beans) which is primarily grown as a forage crop which can be grazed by animals or harvested as hay to be used as an animal a has a deeply penetrating taproot and the stems of the plant branch from a woody base, growing upright and erect or along the ground.

Description of the Pests. Spider mites are small pests, with adults about the size of a small pinhead, variable in color (green or yellow) with dark pigmented spots. Adult spider mites have eight legs and are oblong to spherical in shape.

The eggs of spider mite species found in alfalfa are very small, whitish, and spherical in shape. Alfalfa Insects I 2. Clover Leaf Weevil 3.

Blister Beetles Identification Adult: Light brown with a dark brown, mid-dorsal band along the body, about ¼ inch long with a Primary concern is the contamination of harvested alfalfa with dead adults which contain the toxin, cantharidin.

High concentrations of this toxin in harvested alfalfa File Size: KB. Alfalfa Insects II. Photos and identification information for insect pests of alfalfa in Nebraska, including the pea, spotted alfalfa, cowpea, and blue alfalfa aphids; potato leafhopper; and plant bug. Insecticides for Field Crops, including current alfalfa pest management.

Alfalfa Insects. Clover Leaf Weevil, Donus zoilus. Adult clover leaf weevil. Clover leaf weevil larva. Introduction: The clover leaf weevil, Hypera punctata (Fabr.), is a native of Europe, but has long been present in North America and is now established in most areas where clover and alfalfa are grown.

Life History: The adult is a brown weevil about 1/4 inch long with indistinct stripes on. Integrated (Insect) Pest Management. Jim Barbour. University of Idaho, Parma R & E Center. Parma, ID. [email protected] A pest population management system that anticipates and prevents pests from reaching damaging levels by using economically, environmentally, and socially suitable methods to maintain pestFile Size: 7MB.

Insect Management in Alfalfa: The most common insect pests in Oklahoma alfalfa include: Alfalfa Weevil – the most damaging insect pest in late winter and early spring every year. Lygus bugs - the most damaging insect pest in alfalfa seed production.

Spotted Alfalfa Aphid - has great potential to cause stand loss in seedlings and established alfalfa. Bryan Jensen, University of Wisconsin Identification, life cycle, damage symptoms and economic thresholds for pea aphids, plant bugs, meadow spittle bugs and alfalfa caterpillars.

http:ipcm/wisc/edu. aphids per stem on 10­inch tall alfalfa, or 50 blue alfalfa aphids on 20­inch tall alfalfa, may justify insecticide treatment. Perennial Winter/Spring Summer Fall/Winter Alfalfa Weevil Pg.1 Potato Leafhopper Pg.5 Occasional Winter/Spring Summer Fall/Winter Blue Alfalfa Aphid Pg.1 Cowpea Aphid Pg.1 Pea Aphid Pg.1 Clover Leaf Weevil Pg.3 Army File Size: KB.

Hypera punctata. Pest description and crop damage This is the largest weevil found in legume fields. Fully developed larvae are about inch long, green to yellow, and have a brown head and a white or pink line down the center of the back.

Includes. Alfalfa aphid (Macrosiphum creelii). Blue alfalfa aphid (Acyrthosiphon kondoi). Pea aphid (Acyrthosiphon pisum). Spotted alfalfa aphid (Therioaphis maculata). Pest description and crop damage Aphids are common on legumes. Aphids can frequently cause problems when their natural enemies are eliminated by sprays targeting alfalfa weevil.

3A 1. Alfalfa caterpillar, black cut-worm, variegated cutworm, army cutworm, green cloverworm, alfalfa webworm, garden webworm, blue alfalfa aphid, pea aphid, spotted alfalfa aphid, potato leafhopper 2.

Plant bugs, alfalfa weevil larvae 1. oz/A 2. oz/A REI is 12 hours. PHI is 14 days when rates greater than lb active. Key Words: alfalfa, plant pathology, disease control, insect control, nematode control, alfalfa pests, alfalfa insects, alfalfa diseases, alfalfa nematodes. INTRODUCTION From the time alfalfa was first introduced into North America by immigrants there has been a progressive effort to improve its Size: 35KB.

This set of two photo identification guides covers the major insect pests of Nebraska alfalfa. Alfalfa Insects I (EC) covers alfalfa weevil; clover leaf weevil; blister beetles; army, variegated and dingy cutworms; alfalfa caterpillar, and the green cloverworm.

Monitoring aphids in alfalfa along with their natural enemies is essential for making informed pest management decisions. This video provides step-by. As a reminder, economic thresholds for alfalfa weevil are determined from the size of plants, the value of the hay, the cost of insecticidal treatment, and the number of larvae per 30 stems of alfalfa.

See our Alfalfa weevil fact sheet for thresholds, a sample protocol, and more details on alfalfa weevil biology. Integrated pest management in forage alfalfa CHARLES G. SUMMERS Department of Entomology, University of California, Davis, CA, USA Alfalfa, Medicago sativa L., is among the most prized of forages, and is grown worldwide as a feed for all classes of livestock.

It is one of man’s oldest crops, and its cultivation probably predates. Alfalfa Seed Insect Pest Management - D.W. Goerzen 1 and J.J. Soroka 2 1 E - Research Drive, Saskatoon, SK S7N 3R3 2 Science Place, Saskatoon, SK S7N 0X2 The major insect pests of alfalfa grown for seed production in Saskatchewan are Lygus bug, alfalfa plant bug, and alfalfa Size: 79KB.

Progress 10/01/05 to 09/30/08 Outputs OUTPUTS: This is the termination report for research results on investigations of the biology and control of alfalfa insect pests in the Southern Great Plains.

Over several decades, studies on the basic biology and applied management solutions have been completed for the alfalfa weevil (Hypera postica), the. Pests to be examined will include alfalfa weevil, clover root curculio, aphid species and other arthropods that occur in damaging numbers.

Alfalfa stands will be assessed in the spring and in the fall, following the last harvest by counting the number of alfalfa crowns, alfalfa stems and weeds (grassy and broadleaf.