Insect Pests, Gardening & Pests, Lawn & Garden

Mosquitoes: Pest Notes for Home and Landscape

There are several species of mosquitoes in California that readily attack people, and some species are capable of transmitting microbial organisms that cause human diseases such as malaria and encephalitis.

Publication Number:: 7451

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Nematodes: Pest Notes for Home and Landscape

Nematodes are microscopic, eel-like roundworms. The most troublesome species in the garden are those that feed on plant roots. They are difficult to control and can be spread easily from garden to garden in soil and plant parts.

Publication Number:: 7489

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Oak Pit Scales: Pest Notes for Home and Landscape

Several species of pit scales attack many common deciduous and evergreen oaks in California. The valley oak is especially susceptible. Pit scales suck juices from twigs and cause twig dieback, which first becomes apparent in mid- to late summer.

Publication Number:: 7470

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Olive Fruit Fly: Pest Notes for Home and Landscape

The rapid invasion of California by the olive fruit fly poses a severe economic threat for the state’s commercial olive growers.

Publication Number:: 74112

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Pest Note Roses: Insects and Mites

While insects and mites may attack roses from time to time, many rose enthusiasts are able to maintain vigorous plants and produce high quality blooms with little or no use of insecticides, especially in California's dry interior valleys.

Publication Number:: 7466

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Pests of the Garden and Small Farm, 3rd Edition

This essential handbook adapts scientifically based integrated pest management techniques to the needs of the home gardener and small-scale or urban farmer.

Publication Number:: 3332

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Pitch Moth: Pest Notes for Home and Landscape

Pitch moths occur from California north through British Columbia. In California they most often attack pines, especially those in urban coastal areas of northern California, from Monterey Bay to the San Francisco Bay Area.

Publication Number:: 7479

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Psyllids: Pest Notes for Home and Landscape

Psyllids resemble miniature cicadas and are sometimes called jumping plantlice. Over 100 species occur on both native and introduced landscape plants in the United States, but each kind of psyllid feeds on only one plant species or closely related groups.

Publication Number:: 7423

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Red Imported Fire Ant: Pest Notes for Home and Landscape

The red imported fire ant is new to California and has recently been found infesting residential and commercial areas in southern California. The spread of these ants has largely been a result of the movement of infested soil to uninfested areas.

Publication Number:: 7487

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Redhumped Caterpillar: Pest Notes for Home and Landscape

Destructive numbers of the redhumped catepillar may be a problem in the Central Valley. Commonly attacked are liquidambar (sweet gum), walnut, and plum; it is also found on almond, apple, apricot, birch, cottonwood, cherry, pear, prune, redbud, and willow

Publication Number:: 7474

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Scales: Pest Notes for Home and Landscape

Scale insects can be serious pests on trees, shrubs, and other perennials. The impact of infestations depends on the scale species, the plant species and cultivar, environmental factors, and natural enemies.

Publication Number:: 7408

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Scorpions: Pest Notes for Home and Landscape

Scorpions are nocturnal, predatory animals that feed on a variety of insects, spiders, centipedes, and other scorpions. Of the 70 or so species found in North America only the bark scorpion is considered dangerous to people.

Publication Number:: 74110

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Silverfish and Firebrats: Pest Notes for Home and Landscape

If the pages and bindings of books in your bookcase have been chewed on, suspect the look-alike household pests--silverfish and firebrats.

Publication Number:: 7475

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Sixspotted Spider Mite on Plumeria: Pest Notes for Home and Landscape

Learn to identify and control this common mite pest of plumeria (also called frangipani or lei flower), an increasingly popular ornamental in California gardens.

Publication Number:: 74141

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Slugs: A Guide to the Introduced and Native Fauna of California

This guide provides information on identification, dissection, taxonomy, morphology, common names, distribution, ecology, and pest status of the introduced and native slugs of California.

Publication Number:: 8336-2

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Snails and Slugs: Pest Notes for Home and Landscape

Snails and slugs are among the most bothersome pests in many gardens and landscapes. The brown garden snail (Helix aspersa) is the most common snail in California gardens; it was introduced from France during the 1850s for use as food.

Publication Number:: 7427

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Spider Mites: Pest Notes for Home and Landscape

Mites are common pests in landscapes and gardens and can be found feeding on many fruit trees, vines, berries, vegetables, and ornamental plants. Mites are not insects but members of the arachnid class along with spiders and ticks.

Publication Number:: 7405

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Spiders: Pest Notes for Home and Landscape

Many people fear or dislike spiders but, for the most part, spiders are beneficial because of their role as predators of insects and other arthropods, and most cannot harm people.

Publication Number:: 7442

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Spotted Wing Drosophila: Pest Notes for Home and Landscape

Spotted wing drosophila (SWD or Drosophila suzukii) are different from the common vinegar fly (D. melanogaster): SWD will attack and spoil previously undamaged fruit. Learn to recognize and control this pest of fresh fruit.

Publication Number:: 74158

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Springtails: Pest Notes for Home and Landscape

Springtails jump, but they don't bite humans or animals like fleas and they cause only minor damage to plants. Still they can still be a nuisance around pools or damp indoor areas. Learn a few simple, nonchemical measures to keep them under control.

Publication Number:: 74136

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Stages of the Cottony Cushion Scale and its Natural Enemy . . .

Color photos of various life stages of cottony cushion scale and a natural enemy used for its biocontrol, the vedalia beetle. Cottony cushion scale is a pest of citrus and woody ornamentals.

Publication Number:: 8051

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Subterranean and Other Termites: Pest Notes for Home and Landscape

Termite pests in California include drywood, dampwood, and subterranean species. These pests cause serious damage to wooden structures and posts and may also attack stored food, books, and household furniture.

Publication Number:: 7415

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Sycamore Scale: Pest Notes for Home and Landscape

Sycamore scale, Stomacoccus platani, occurs only on sycamore. The sycamore scale is so tiny, about 1/16 inch long, that many people fail to recognize it as an insect and mistake it for a disease symptom.

Publication Number:: 7409

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Thrips: Pest Notes for Home and Landscape

Thrips are tiny, slender insects with fringed wings. Some are beneficial predators that feed on other insects and mites, others are pests that feed on plants and scar leaf, flower, or fruit surfaces.

Publication Number:: 7429

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