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Pests of Landscape Trees & Shrubs

3359 ISBN 978-1-879906-61-7

$42.00

Abiotic Disorders of Landscape Plants

3420 ISBN 978-1-879906-58-7

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Landscape Pest Identification Cards

These pocket-size laminated cards can be easily carried with you as a quick reference

to 80 common insects and mites, over 40 plant diseases, 20 natural enemies, and a variety of other disorders and invertebrate pests. Each pest is identified by a description and excellent close-up color photographs of important symptoms and life stages.

The information on these 43 cards will help landscape maintenance professionals and home gardeners identify and manage most major common pest problems in the landscape.

Includes everything from aphids and whiteflies to glassy-winged sharpshooter and sudden oak death, all of which have an impact on California landscapes.

Everyone involved in landscape pest management will want a set of these handy cards.

43 cards. 2009.

3513 ISBN 978-1-60107-613-7 $20.00

Lawn and Residential Landscape Pest Control

UNIVERSITY OF CALIFORNIASTATEWIDE INTEGRATED PEST MANAGEMENT PROGRAMAGRICULTURE AND NATURAL RESOURCESPUBLICATION 3510

PESTICIDEAPPLICATIONCOMPENDIUM

8

From the University of CaliforniaNew! Other popular pest books from the University of California—

Buy both and save!

Save 25% when you purchase both Pests of Landscape Trees and Shrubs and the Landscape Cards.

Order item # 3513PROMO2

$46.50

FOLIAGE-CHEWING INSECTS

Leaf-Feeding BeetlesLeaf beetles and the adults of certain weevils chew holes in foliage

or skeletonize leaves. Heavy infestations of elm leaf beetle can

cause serious damage to susceptible elm species. In general, leaf

feeding by most beetles or weevils is not harmful unless a tree is

repeatedly defoliated.Elm leaf beetles are small, yellow-green, and marked with

black, longitudinal stripes. Their larvae are dull and yellow-

green, and resemble small caterpillars.

Eucalyptus tortoise beetle adults and larvae chew notches in

the edges of eucalyptus leaves and may consume entire leaves.

Weevil adults chew irregular notches in the edges of leaves.

What to DoProvide adequate but not excessive irrigation to keep trees

healthy and vigorous.Most leaf beetles do not cause enough damage to warrant the

use of insecticides.When planting, choose elms that are resistant to elm leaf beetle

and rhododendrons that are resistant to weevils.

Decide to tolerate some degree of defoliation before you make

any insecticide applications.Where elm trees are seriously damaged, you can apply a trunk

banding of a persistent insecticide or a soil application of imi-

dacloprid. See Pest Notes: Elm Leaf Beetle for details.

To manage weevils on shrubs, pick off and destroy adults and

trim back any branches that provide a bridge to other plants

(the adults cannot �y). Soil-dwelling larvae can be controlled

with bene�cial nematodes.For More Information (See “Suggested Reading” on

the back card.) Pest Notes: Elm Leaf Beetle, Pest Notes: Eucalyptus Tortoise Beetles

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BENEFICIALS

General Predators

Many of the insects found in gardens and landscapes are consid-

ered bene�cial because they feed on pest insects and mites. The

term general predator is used for those species that feed on a vari-

ety of different pest species. Besides insects such as those shown

here, spiders are important general predators in the landscape.

Syrphid �y larvae are legless maggots that consume aphids and

other soft-bodied insects. Adults resemble honey bees or small

yellowjackets and are often seen around �owers, where they

feed on pollen and nectar.

Lacewing larvae feed on many different soft-bodied insects and

mites. Adults are often seen around light sources at night. Adult

food includes insect honeydew and plant nectar. Adults of some

species (Chrysopa spp.) also feed on small insects.

Soldier beetle adults, also called leatherwings, feed on aphids

and pollen. Larvae live in the soil, where they feed on insects

and other arthropods.

Both immature and adult minute pirate bugs are very small and

feed on mites, thrips, and insect eggs. Immatures are pear

shaped and yellow or reddish brown.

What to Do

To

protect bene�cial insects, rely on nonchemical pest control

methods such as squashing, trapping, washing off, or pruning

out pest infestations.

Avoid using broad-spectrum pesticides such as organophos-

phates and pyrethroids.

Include �owering plants in your landscaping to provide pollen,

nectar, and shelter for bene�cials.

Control insect-tending ants with baits and use barriers to keep

them off landscape plants. Ants drive predators away from aphids

and other honeydew-secreting insect pests.

For More Information (See “Suggested

Reading” on the back card.)

Natural Enemies Handbook

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Lawn and Residential Landscape

Pest Control3510

ISBN 978-1-60107-560-4 $ 20.00