Chemical control of alfalfa insect pests

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Cooperative Extension, College of Agriculture & Home Economics, Washington State University , Pullman, Wash
Alfalfa -- Diseases and pests -- Co
Statement[by Dan Mayer ... [et al.]]
SeriesEB -- 1221., Extension bulletin (Washington State University. Cooperative Extension) -- 1221.
ContributionsUnited States. Dept. of Agriculture., Washington State University. Cooperative Extension.
The Physical Object
Pagination[3] p. ;
ID Numbers
Open LibraryOL17614409M

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 spotted alfalfa aphid (Therioaphid maculate), the. 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. Josef Jampílek, Katarína Kráľová, in New Pesticides and Soil Sensors, 8 Conclusions.

The characteristics of a successful modern crop protection chemical are: (1) to remain active in the environment (sun, heat, rain), (2) to penetrate the noxious organism (fungus, insect, nematode) and to be transported to the target, (3) to resist defense of the pest/pathogen, (4) to remain benign.

Department of Entomology W. Waters Hall Old Claflin Place Kansas State University Manhattan KS fax [email protected] This handbook is intended as a tool for making decisions regarding the control and management of important insect pests in the Pacific Northwest.

Originally, it was written for commercial growers, county extension agents, consultants, field and nursery staff, and chemical industry representatives. 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.

The scope of biological control; The historial development of biological control; Population ecology - historical development; The concept and significance of natural control; Some biological control concepts and questions; Biological characteristics of entomophagous adults; Developmental stages of parasites; Systematics in relation to biological control; Foreign exploration for beneficial Reviews: 1.

Insect identification is a key to management, especially when determining immature stages. For example, pea aphids and blue alfalfa aphids are easily confused; however, blue alfalfa aphids do significantly more damage than pea aphids.

Pea aphids generally don’t.

Description Chemical control of alfalfa insect pests EPUB

In case of emergency Call your poison control center: If the patient has collapsed or is not breathing: call Pesticide Safety Information. development of alternatives to chemical control of plant pathogens, weeds, and insect pe sts.

The term Integrated Pest Management has, mo re often than not, been identified with entomologists. Solomon M. Insect population balance and chemical control of pests. Chem. and Indus. Steinhaus E.

Possible use of Bacillus thuringiensis Berliner as an aid in the biological control of the alfalfa caterpillar. 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 Insect Management 3 Cowpea Aphid These large, dark aphids generally feed near the tips of infested stems and have been sporadically reported from alfalfa fields since Damage is similar to that caused by the pea aphid, and thresholds are likely to be comparable.

Significant populations developed in and File Size: KB. strategies in forage alfalfa, integrating biological control, cultural manipulations, chemical control, and host plant resistance.

I have attempted to limit the review to those strategies that are proven, through research and application, to be effective for the specific pest species discussed. In some cases, the discussion of certain pests, e.

Insect Control Recommendations for Field Crops. Cotton, Soybean, Field Corn, Sorghum, Wheat and Pasture.

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Scott Stewart, Professor, Department of Entomology and Plant Pathology Angela McClure, Associate Professor, Department of Plant Sciences.

Cotton Insect Control Recommendations Integrated Pest ManagementFile Size: 2MB. chemical control. Biological Control. Western flower thrips are often an effective predator of spider mites, migrating into alfalfa from surrounding crops as their host plants desiccate.

Details Chemical control of alfalfa insect pests EPUB

Spider mites are also fed on by minute pirate bugs, big-eyed bugs, and lacewing larvae. Cultural Control. Robert Lee Metcalf was an American entomologist, environmental toxicologist, and insect chemical ecologist.

Metcalf was noted for making environmentally safe pest control achievable. William H. Luckmann is the editor of Introduction to Insect Pest Management, 3rd Edition, published by s: 1. Lygus bugs, comprised of a group of closely related species, are the primary insect pest of alfalfa seed bug adult and immatures feed on plant terminals, buds, flowers and the developing seeds.

The general term ‘plant bug’ includes species of lygus and alfalfa plant bugs (APB), although lygus are generally found in greater numbers than APB. It explains the development of microbial insecticides; the genetic improvement of insect pathogens; the use of entomogenous nematodes in cryptic and soil habitats; and the techniques for integrating the influences of natural enemies into models of crop/pest systems.

The fourth part of the book focuses on the biological control of weeds. As the alfalfa value increases, fewer larvae are required to reach a treatment threshold.

For instance, figure (b) indicates that $70/ton alfalfa should be treated at just over two larvae per stem when the alfalfa is approximately 17 inches tall, versus requiring nearly three larvae per stem to trigger treatment when the crop is valued at $35/ton. Chemical Control of the Alfalfa Weevil L.J.

DePew, Research Entomologist P.E. Sloderbeck, Extension Entomologist The most serious pest of alfalfa in Kansas is the al­ falfa weevil, Hypera postica (Gyllenhal).

A native of Eu­ rope, the weevil was first discovered in the United States in near Salt Lake City, Utah. For nearly 50 years. 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. Progress 01/01/03 to 12/31/03 Outputs Objective 1 is to investigate chemical and non-chemical control measures for forage insect management.

A study has been conducted to examine post-cutting locations of the alfalfa weevil. determine survival and spatial patterns of alfalfa weevil larvae (Hypera postica (Gyllenhal)) within and between windrows.

Most insect and mite pests are considered minor, and control measures are not normally required. Pests may include aphids (turnip, cabbage, and green peach), Rutherglen bug and helicoverpa. Chickpea. Helicoverpa larvae are the only major pest. They are most damaging from pod set to maturity, reducing both grain yield and quality.

Insect Pests of Field Crops Chris C. Burkhardt Professor of Entomology SECTION I - Principles of Field Crop Insect Control Present-day insect problems, created or aggravated by the concentrations of host plants, are diverse and complex and without simple solutions.

Farmers and ranchers must follow the instructions and advice of competent fieldmen. This Pulse Crop Insect Diagnostic Series provides integrated pest management (IPM) information on the key insect pests of pulse crops.

IPM is a sustainable approach to managing pests by combining biological, cultural, physical and chemical strategies in a way that minimizes economic, health and environmental risks (National IPM Network).

The biological control of plant diseases differs from insect biocontrol in following ways (T able 1). T able 1: Differences between disease bio-control and insect bio-contr ol. The population dynamics of insect pests in agroecosystems may often be linked to those of other phytophagous species through the foraging activities of natural enemies; these indirect interactions provide both opportunities and challenges for biological by: Caterpillars: (alfalfa caterpllar, armyworms, cutworms, green cloverworm loopers, and webworms) alpha-cypermethrin* Fastac: 3: 3: Depending on the value of the crop, defoliation levels as low as % may be economic.

Fall seedings especially need protection from larval defoliation and possibly plant death. Effect of autotoxicity on alfalfa stands when alfalfa is seeded (a) immediately following alfalfa plowdown, (b) 4 weeks later, and (c) after 1 year.

b c a 0 weeks 2 weeks 4 weeks fall-killed after corn number of plants/ft 2 0 10 20 30 40 50 0 weeks 2 weeks 4 weeks fall-killed after corn yield (% of check variety) 0 20 40 60 80 plowed no-till. mechanical, biological and chemical control options? (See “IPM Options for Managing Alfalfa Pests” inside the back cover.) Which is the most practical, economical, effective choice?

Implementation. Implement the control carefully and at the right time. If pesticides are used, always follow label Size: KB.The activity of chlorpyrifos-ethyl [chlorpyrifos], phosmet, malathion and pirimiphos-methyl were compared with cyhalothrin against insect pests of forage lucerne in Aragon, Spain.

The efficacy of mixtures of cyhalothrin with each of the other insecticides and of a mixture of cypermethrin and pirimiphos-methyl was also tested.

The main pest species were Phytonomus variabilis [Hypera postica], Author: F. Gimeno, A. Perdiguer.Alfalfa (/ æ l ˈ f æ l f ə /), also called lucerne and called Medicago sativa in binomial nomenclature, is a perennial flowering plant in the legume family is cultivated as an important forage crop in many countries around the world.

It is used for grazing, hay, and silage, as well as a green manure and cover name alfalfa is used in North : Tracheophytes.