Field crop plant health challenges

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This collection offers a thorough examination of the hurdles that plants confront, highlighting a varied group of challenges in agricultural and natural environments. Explore the fundamentals of plant health by delving into topics such as plant diseases, pests, and weeds. Identify the hosts, symptoms, and cultural controls for diseases, and gain insights into the economic, chemical, and biological aspects of weed control.

Plant diseases

Barley Yellow Dwarf Virus

Virus mainly spread by aphids attacks wheat, barley and oats causing crop damage and yield loss. What is this disease?

Mary Corp | Oct 2018 | Article

Cephalosporium Stripe

Winter cereals and grasses in danger of contracting disease.

Mary Corp | Oct 2018 | Article

Fusarium

Fungus that attacks small grain crops effects crop yield.

Mary Corp | Oct 2018 | Article

Powdery Mildew

Pest spots wheat. What does this fungus want with our crops?

Mary Corp | Oct 2018 | Article

Pythium

This pest stunts the growth and maturation or cereal grains.

Mary Corp | Oct 2018 | Article

Take all

This root rot look-alike is endangering wheat, grass, and barley. Learn the signs, symptoms, and controls of this disease.

Mary Corp | Oct 2018 | Article

Pests

Hessians are on the fly

Small pest effecting spring crops. Stalks breaking before harvest damages yield.

Mary Corp | Oct 2006 | Article

Cereal leaf beetles pose threat to grain crops

The cereal leaf beetle attacks grain crops and damages both plant vigor and grain quality. Sporadic outbreaks in Oregon counties in recent years might be an indication that biocontrol is failing.

Mary Corp, Navneet Kaur | Jan 2024 | Article

Russian Wheat Aphid

What your rolled-up wheat leaves mean.

Mary Corp | Oct 2011 | Article

Leaf-Feeding Sawflies in Wheat

Documents 2003 wheat sawfly outbreak in Oregon. Provides growers and field consultants with educational information needed for decision making on fly control. Includes photos.

Mary Corp, Glenn Fisher | Oct 2003 | Extension Catalog publication

Scouting and collecting Wheat Head Armyworms

What growers can do to scout for and help identify wheathead armyworms.

Mary Corp | Oct 2008 | Article

Weeds

Common Crupina

Small flowering plant that poses a threat to rangeland.

Mary Corp | Oct 2018 | Article

Dalmatian Toadflax

Deep-rooted, flowering perennial threatening crop production and rangeland.

Mary Corp | Oct 2018 | Article

Leafy Spurge

Hearty perennial reduces rangeland to a monoculture.

Mary Corp | Oct 2018 | Article

Meadow Knapweed

Tall, aggressive perennial destroying native plants.

Mary Corp | Oct 2018 | Article

Blooming Biennials! Musk Thistle

Tall, diverse plant sneaks into pasture, rangeland, and timberland.

Mary Corp | Oct 2018 | Article

Prickly Lettuce

This persistent, prickly pest plans to invade fields and stay there.

Mary Corp | Oct 2018 | Article

Puncture Vine

Prickly, resilient vine comes back for more. This little bug has something to say about that.

Mary Corp | Oct 2018 | Article

Purple Loosestrife

Tall, spiky weed crows out essential vegetation.

Mary Corp | Oct 2018 | Article

Rattail Fescue control in chemical fallow

European native grassy weed on the rise.

Mary Corp, Daniel Ball | Oct 2011 | Article

Spikeweed

Can spraying this weed at the right time keep it out of our fields?

Mary Corp | Oct 2018 | Article

Velvetleaf-Have you seen this weed?

This small plant causes extensive crop loss. Is it still missing?

Mary Corp | Oct 2018 | Article

Jan 2024

Autor

Mary Corp

Director (Former)

Want to learn more about this topic? Explore more resources from OSU Extension: Field crops, Integrated pest management, Plant diseases, Weeds

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Blooming Biennials! Musk Thistle

Tall, diverse plant sneaks into pasture, rangeland, and timberland.

Mary Corp | Oct 2018 | Article

Purple Loosestrife

Tall, spiky weed crows out essential vegetation.

Mary Corp | Oct 2018 | Article

Scouting and collecting Wheat Head Armyworms

What growers can do to scout for and help identify wheathead armyworms.

Mary Corp | Oct 2008 | Article

Rattail Fescue control in chemical fallow

European native grassy weed on the rise.

Mary Corp, Daniel Ball | Oct 2011 | Article

Russian Wheat Aphid

What your rolled-up wheat leaves mean.

Mary Corp | Oct 2011 | Article

Hessians are on the fly

Small pest effecting spring crops. Stalks breaking before harvest damages yield.

Mary Corp | Oct 2006 | Article

Spikeweed

Can spraying this weed at the right time keep it out of our fields?

Mary Corp | Oct 2018 | Article

Dalmatian Toadflax

Deep-rooted, flowering perennial threatening crop production and rangeland.

Mary Corp | Oct 2018 | Article

Velvetleaf-Have you seen this weed?

This small plant causes extensive crop loss. Is it still missing?

Mary Corp | Oct 2018 | Article

Take all

This root rot look-alike is endangering wheat, grass, and barley. Learn the signs, symptoms, and controls of this disease.

Mary Corp | Oct 2018 | Article

Common Crupina

Small flowering plant that poses a threat to rangeland.

Mary Corp | Oct 2018 | Article

Fusarium

Fungus that attacks small grain crops effects crop yield.

Mary Corp | Oct 2018 | Article

Powdery Mildew

Pest spots wheat. What does this fungus want with our crops?

Mary Corp | Oct 2018 | Article

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