Weeds, Pests, Diseases, Integrated Pest Management

Establishing Hedgerows on Farms in California

A hedgerow is a border of trees, shrubs, grasses, forbs, rushes, or sedges that surrounds a farm field and can reduce the effects of wind and water erosion, provide habitat for beneficial insects, and more. Find out if a hedgerow is right for your farm.

Publication Number:: 8390

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Field Bindweed: Pest Notes for Home and Landscape

Field bindweed, Convolvulus arvensis, is a native of Eurasia and was first documented in California in 1884. By the first quarter of the twentieth century, field bindweed was proclaimed the worst weed in California.

Publication Number:: 7462

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Getting a Handle on Broom: Scotch, French, Spanish, and Portuguese Brooms

Scotch broom and related plants can aid in erosion control and improve soil nitrogen content, but they can also be formidable as weeds. This publication tells how and where broom grows best and gives tips on how to keep it under control.

Publication Number:: 8049

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Glyphosate Stewardship: Maintaining the Effectiveness of a Widely Used Herbicide

Glyphosate (Roundup®) is very effective against weeds, but you can't use it just any old way or you'll end up encouraging the development of resistant weeds. Learn to find the best timing, mix, and application method, and complementary control methods.

Publication Number:: 8492

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Herbicide Resistance: Definition and Management Strategies

An herbicide ceases to be a useful tool for farmers when its target weeds develop resistance to its effects. This publication helps you understand resistance: what causes it, and how you can slow or prevent its development.

Publication Number:: 8012

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Herbicide Symptoms on Hemp

The introduction of a new crop into a landscape involves certain unknowns, including the risk of pesticide and herbicide drift from neighboring crops. This publication looks at symptoms that could be expected in hemp that has been exposed to specific herbicides that are widely used in a range of crops during the summer hemp growing season.

Publication Number:: 8689

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Invasive Plants: Pest Notes for Home and Landscape

Invasive plants are a distinct group of weeds that occur in natural habitats. This Pest Note shows how invasive plants differ from common garden and agricultural weeds and discusses their occurrence, impact, spread, and management.

Publication Number:: 74139

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Livestock-Poisoning Plants of California

Horses, goats, sheep, and cattle can sicken or die if they eat from a poisonous plant. The best strategy is just to keep these plants out of reach. Here are photos, ID info, and poisoning symptoms for more than 30 hazardous ornamental and range plants.

Publication Number:: 8398

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Mallows: Pest Notes for Home and Garden

Weedy mallow plants are found growing widely in California. Although some of the wild mallow species can be eaten, mallows are less than desirable when found growing in crop fields, orchards, lawns, gardens, and landscapes.

Publication Number:: 74127

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Managing Glyphosate-Resistant Weeds in Glyphosate-Resistant Crops

Glyphosate-resistant crops made farming a lot easier when they first came out, but many weeds have developed resistance. Herbicide-tolerant crops will only work as part of a more comprehensive, Integrated Pest Management plan.

Publication Number:: 8494

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Managing Hull-Borne Invasive Species and Coastal Water Quality for California...

Full Title: Managing Hull-Borne Invasive Species and Coastal Water Quality for California and Baja California Boats Kept in Saltwater. Information for boat owners, boat maintenance and repair businesses, port managers, scientists and policy makers.

Publication Number:: 8359

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Managing Smutgrass in Irrigated Pastures

Small smutgrass is a grass that grows well in irrigated pastures but is not palatable to livestock. So what happens if it grows well and it doesn't get eaten? It takes over the pasture! Learn some simple control measures that will keep this weed in check

Publication Number:: 8473

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Mistletoe: Pest Notes for Home and Landscape

Identification, life cycle, damage, and management of this evergreen parasitic plant that grows on a number of landscape tree species in California.

Publication Number:: 7437

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Nutsedge: Pest Notes for Home and Landscape

Nutsedges are common weeds in landscapes and gardens in the coastal valleys, Central Valley, and southern areas of California. They thrive in waterlogged soil and their presence can indicates poor drainage, too frequent irrigation, or leaky sprinklers.

Publication Number:: 7432

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Perennial Pepperweed: Pest Notes for Home and Garden

Perennial pepperweed is invasive throughout the western United States, it has many common names including tall whitetop, perennial peppercress, ironweed, perennial peppergrass, and broad-leaved pepperweed.

Publication Number:: 74121

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Plantains: Pest Notes for Home and Landscape

Plantains can be a major weed problem for turfgrass or ornamental managers. They form dense clumps that give poor footing for athletic fields and golf courses and have a texture and color that varies from normal turf.

Publication Number:: 7478

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Poison Hemlock: Pest Notes for Home and Landscape

The leafy parts of poison hemlock have some resemblance to those of its relatives carrot, celery, and parsnip, as well as a variety of leafy herbs. It is, however, toxic to humans and other animals. Learn how to manage this vigorous, competitive weed.

Publication Number:: 74162

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Pokeweed: Pest Notes for Home and Garden

American pokeweed (Phytolacca americana) is a robust, non-woody shrub that is spreading in parts of California. Although sometimes eaten, the entire plant is poisonous and should be considered with extreme caution.

Publication Number:: 74173

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Preventing and Managing Glyphosate-Resistant Weeds in Orchards and Vineyards

Rely too much on any one herbicide and you end up with weeds that will resist its effects—and that's just what is happening now with glyphosate (Roundup®). See how you can increase effectiveness by diversifying your weed-management strategies.

Publication Number:: 8501

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Puncturevine: Pest Notes for Home and Landscape

Puncturevine (Tribulus terrestris) is an aptly named summer annual that thrives in hot, dry conditions. The seeds are enclosed in a hard case that can injure livestock, people, and pets when stepped on and can even puncture bicycle tires.

Publication Number:: 74128

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Russian Thistle: Pest Notes for Home and Landscape

Russian thistle, also known as tumbleweed, is a troublesome, difficult to control pest. In late fall and early winter, it becomes conspicuous as it breaks from the soil and is blown across highways and fields.

Publication Number:: 7486

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Selection Pressure, Shifting Populations, and Herbicide Resistance and Tolerance

A good herbicide will control the current population of weeds, but also create a powerful "selection pressure": any weeds that survive its effects will go on to thrive, immune to any further applications. Learn how to keep selection pressure in check.

Publication Number:: 8493

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Small Grain Production Pt 9: Pest Management -- Weeds

Part 9 of the 14-part Small Grain Production Manual introduces the types of weeds that can be a problem in small grains and discusses their cultural and chemical control.

Publication Number:: 8172

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Soil Solarization for Gardens and Landscapes: Pest Notes for Home and Garden

Soil solarization is a simple, nonchemical method for controlling soilborne pests. Find out whether and how it can work for you.

Publication Number:: 74145

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