Silvia I. Rondon

Former

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Content by Silvia I. Rondon

Northern Giant Hornet: A Potential Threat to Honeybee Colonies in Oregon

The northern giant hornet was detected in British Columbia and Washington in 2019. This publication outlines the identification, life cycle, and predatory habits of the northern giant hornet (Vespa mandarinia) for beekeepers. It also...

Ellen Topitzhofer, Chris Hedstrom, Andony Melathopoulos, Silvia I. Rondon, Gail Langellotto, Ramesh Sagili | Sep 2022 | OSU Extension Catalog Peer reviewed (Orange level)

Pocket Guide to Grass Seed Pests and Beneficials: Identification, Monitoring, Management

Learn to identify common pests and beneficial insects found in grass seed production fields across Oregon. This handy pocket guide covers: • Where pests are found. • Symptoms of pest damage. • Pest lookalikes. • ...

Amy J. Dreves, Navneet Kaur, Joe DeFrancesco, Silvia I. Rondon, Nicole Anderson | May 2021 | OSU Extension Catalog Peer reviewed (Orange level)

Invertebrate Pest Management for Pacific Northwest Pastures

A well-managed pasture has several ecological and economic benefits. However, several species of arthropods (insects, mites and garden symphylans), and gastropods (slugs) inhabit pastures of the Pacific Northwest of the United States and can diminish those benefits.

Mylen Bohle, David Hannaway, Silvia I. Rondon | Aug 2020 | OSU Extension Catalog Peer reviewed (Orange level)

Biology and Management of Beet Leafhopper and Purple Top in Potatoes in the Pacific Northwest

Leafhoppers damage potatoes by feeding on the plants, or by transmitting viruses and phytoplasmas, which are small bacterial parasites of plant phloem tissue. Phytoplasmas cause purple top disease, which reduces yield and produces ...

Silvia I. Rondon | Apr 2020 | OSU Extension Catalog Peer reviewed (Orange level)

The Colorado Potato Beetle in the Columbia Basin

Oregon State University Crop and Soil Science Masters student Pahoua Yang focuses her research project on Colorado potato beetle, Leptinotarsa decemlineata. Her project is to determine baseline information for several commercial ...

Silvia I. Rondon | Oct 2019 | OSU Extension Catalog Peer reviewed (Orange level)

What is Industrial Hemp?

Industrial hemp was grown as a commodity crop for decades until it was banned in the mid-1930s. Congress decriminalized the crop in 2018, sparking interest in it among growers in Oregon, where hemp can be grown successfully. ...

Valtcho Jeliazkov, Jay Noller, Sam Angima, Silvia I. Rondon, Richard Roseberg, Gordon Jones | Aug 2019 | OSU Extension Catalog Peer reviewed (Orange level)

Oregon IPM Center leads the way to better pest management

The center develops multi-faceted approaches to limit the use of pesticides in Oregon’s crops.

Silvia I. Rondon | May 2019 | Impact story

Collecting and Preserving Insects

Collecting insects can be a fun hobby, and is also an important step in IPM. The resources in this collection will help you learn how to find and collect insects and arthropods, then prepare them so that they can be useful for identification and research efforts.

Silvia I. Rondon, Mary Corp | Dec 2018 | Collection Peer reviewed (Gray level)

Current Season HAREC Pest Trap Results

This interactive web map was designed to facilitate the visualization of pest distribution in the areas of Umatilla-Morrow counties (starting May), and Union-Baker counties (starting June).

Silvia I. Rondon | May 2018 | Online resource

Lygus bugs on potatoes in the Pacific Northwest

This publication describes how to identify lygus bugs, their composition in potato fields in the PNW, the kinds of damage they do to potato plants, and how lygus bugs may be potential vectors of potato pathogens. The ...

Josephine Antwi, Silvia I. Rondon | Aug 2017 | OSU Extension Catalog Peer reviewed (Orange level)

Wireworms: A Pest of Monumental Proportions

An overview of identifying, monitoring, and managing wireworms.

Silvia I. Rondon | Jul 2017 | OSU Extension Catalog Peer reviewed (Orange level)

Advances in Dryland Farming in the Inland Pacific Northwest

Farmers make tough decisions all the time—it comes with the territory. When that territory includes the dryland region of the inland Pacific Northwest, decisions can be even more challenging. Fluctuating weather, varying soils, and...

Rakesh Awale, Stephen Machado, Don Wysocki, Silvia I. Rondon, Clark Seavert, Susan Capalbo | Jul 2017 | OSU Extension Catalog Peer reviewed (Orange level)

Integrated Pest Management for the Wheat Head Armyworm Complex in the Pacific Northwest

The wheat head armyworm complex is comprised of two armyworm species, Dargida diffusa (Walker) and Dargida terrapictalis (Buckett), which caused recent and sporadic damage to cereal crops in the Pacific Northwest. This was the ...

Silvia I. Rondon | Jun 2017 | OSU Extension Catalog Peer reviewed (Orange level)

Potato Psyllid Vector of Zebra Chip Disease in the Pacific Northwest

This publication addresses the emergent issue in the Pacific Northwest of a potato infection called zebra chip disease, vectored by the potato psyllid. Includes information on the bacterium, the biology of the vector, description ...

Silvia I. Rondon, Phil Hamm, Darrin Walenta, Stuart Reitz | May 2017 | OSU Extension Catalog Peer reviewed (Orange level)

Preserving insects and related arthropods

Learn to select the proper methods of preservation for your insect collection. Methods and materials depend on the type of insect and the purpose and size of the collection.

Mary Corp, Silvia I. Rondon | Jun 2016 | Article

Integrated Pest Management: How to Identify a Plant or Weed

This video demonstrates the best ways to identify a plant or weed. It covers the process of photographing and collecting the plant and then how to narrow down and establish the plant's category. It explains how to use a field guide and a dichotomous key to identify a plant.

Silvia I. Rondon, Mary Corp, Stuart Reitz | Jul 2015 | OSU Extension Catalog Peer reviewed (Orange level)

Integrated Pest Management: Detecting Plant Diseases in the Lab

This video describes how the Hermiston Agricultural Research and Extension Center examines plant disease samples to determine pathogens and plant diseases. Once the problem is identified, the lab recommends treatment and control methods.

Silvia I. Rondon, Mary Corp, Stuart Reitz | Jul 2015 | OSU Extension Catalog Peer reviewed (Orange level)

Integrated Pest Management: Monitoring Diseases In The Field

This video explains how to do field scouting for diseases and vectors by walking through a field and observing a number of locations. Diseases can reduce the yield and nutritional quality of crops., and vectors — organisms ...

Silvia I. Rondon, Mary Corp, Stuart Reitz | Jul 2015 | OSU Extension Catalog Peer reviewed (Orange level)

Integrated Pest Management: Pest Management Integration

This video explores Integrated Pest Management (IPM) as an approach to protecting your crop from insects, weeds and plant pathogens. IPM uses multiple tactics to manage a particular pest and takes into consideration how management of one pest may affect management of other pests.

Silvia I. Rondon, Mary Corp, Stuart Reitz | Jul 2015 | OSU Extension Catalog Peer reviewed (Orange level)

Integrated Pest Management: Using A Plant Press

Preserving plant specimens is the best way to identify plants by their characteristics at a later period of time. It is always best (if possible) to collect the entire plant specimen at peak production, so you have included ...

Silvia I. Rondon, Mary Corp, Stuart Reitz | Jul 2015 | OSU Extension Catalog Peer reviewed (Orange level)

Monitoring diseases in the field

Diseases can reduce the yield and nutritional quality of crops. Vectors are organisms that transmit pathogens that cause diseases and can also threaten crops. Some important vectors of plant pathogens in the Pacific Northwest ...

Silvia I. Rondon | Apr 2015 | Video

Western Corn Rootworm in Eastern Oregon, Idaho, and Eastern Washington

Western corn rootworm (WCR) is present in eastern Oregon, eastern Washington, and Idaho. As corn acreage in the region increases, WCR has the potential to become a serious pest. This publication covers how to identify WCR, its...

Silvia I. Rondon | Sep 2014 | OSU Extension Catalog Peer reviewed (Orange level)

Brown Marmorated Stink Bug

The brown marmorated stink bug (Halyomorpha halys) is an invasive insect and a very serious threat to Oregon agriculture. It feeds on more than 100 plants, including economically important crops and ornamentals. This card has ...

Spanish: El Chinche Apestoso Marrón Marmolado

Chris Hedstrom, Nik Wiman, Vaughn Walton, Silvia I. Rondon | Jan 2013 | OSU Extension Catalog Peer reviewed (Orange level)

Pinning Butterflies and Moths

Oregon State University Extension entomologist Silvia Rondon shows how to pin butterflies and moths for an insect collection.

Silvia I. Rondon | Jul 2011 | Video

Collecting Insects: Tools and Supplies

Oregon State University Extension entomologist Silvia Rondon discusses the tools and supplies needed to start an insect collection.

Silvia I. Rondon | Jul 2011 | Video

Sweep Net Technique

Demonstration of how to use a sweep net to collect insects.

Silvia I. Rondon, Mary Corp | Jul 2011 | Video

Pinning Small Insects

Oregon State University Extension entomologist Silvia Rondon shows how to pin small insects in a collection.

Silvia I. Rondon | Jul 2011 | Video

Pinning Large Insects

Oregon State University Extension entomologist Silvia Rondon demonstrates how to pin large insects, another step in creating an insect collection.

Silvia I. Rondon | Jul 2011 | Video

Collecting Insects with Traps and Lights

Oregon State University Extension entomologist Silvia Rondon shows how to use pit fall traps and lights to collect insects.

Silvia I. Rondon | Jul 2011 | Video

Using a beat sheet

Oregon State University Extension entomologist Silvia Rondon demonstrates this insect sampling tool.

Silvia I. Rondon | Jul 2011 | Video

Wheat Head Armyworm True or False: A Tale from the Pacific Northwest

Armyworm caterpillars can be a troublesome pest in cereal grains grown in the Pacific Northwest states. This publication presents information about the pest and its control.

Silvia I. Rondon, Mary Corp | May 2011 | OSU Extension Catalog Peer reviewed (Orange level)

Pinning Insects Presentation

Presentation given by Silvia Rondon on the basics of pinning insects.

Silvia I. Rondon | May 2010 | Educational document

Applying Your Insect ID Skills

Slides of presentation on Applying Your Insect ID Skills.

Silvia I. Rondon | Apr 2010 | Presentation

Insect Ecology

Presentation by Silvia Rondon on Insect Ecology. Topics covered include types of metamorphosis, effects of temperature on development, how temperature affects SWD and potato tuberworm.

Silvia I. Rondon | Apr 2010 | Presentation

Potato Pests and Beneficial Insects

A quick guide to common potato pests and beneficial insects.

Silvia I. Rondon | Apr 2010 | Presentation

IPM Insect Pests of Wheat

Presentation by Steve Van Vleet, Washington State University, Whitman County Extension

Silvia I. Rondon, Stuart Reitz, Steve Van Vleet | Apr 2010 | Video Peer reviewed (Gray level)

Introduction to Insects and Basic Morphology

Presentation on an Introduction to Insects and Basic Morphology

Silvia I. Rondon | Apr 2010 | Educational document

Phylum Arthropod

Member of the Phyllum Arthropoda can be found in the seas, in fresh water, on land, or even flying freely; a group with amazing differences of structure, and so abundant that all the other animals taken together are less than 1/6 as many as the arthropods. Well-known members of this group are the lobsters, crayfish and crabs; scorpions, spiders, mites, ticks, the centipedes and millipedes; and last, but not least, the most abundant of all, the insects. The Phylum Arthropods consist of the following classes: arachnids, chilopods, diplopods, crustaceans and hexapods (insects).

Silvia I. Rondon, Mary Corp | Mar 2010 | Educational document