Crop

Intercrop

Pest(s) Reduced

Mechanism

Apple

Phacelia sp., Eryngium sp

San Jose scale, aphids

Parasitic Wasps

Weedy ground cover

Tent caterpillar and codling moth

Parasitic Wasps

Barley

Alfalfa, red clover

Aphids

Predators

Bean

Goosegrass, red sprangletop

Leafhoppers

Chemical Repellent

Brassicas

Candytuft , shepherds purse, wormseed-mustard

Flea beetles

Chemical Repellent

Similar-sized crops

Rootfly, cabbage butterfly and moth

Chemical Repellent, Predators

Brussels sprouts

Weedy ground cover

Imported cabbage butterfly

Predators

French beans, grasses

Aphids

Physical Interference

White clover

Cabbage root fly, aphids, white cabbage butterfly

Visual Masking

Clover

Aphids

Physical Interference

Cabbage

Tomato

Diamondback moth

Hawthorn

Diamondback moth

Attract Pest To Alternative

Red and white clover

Cabbage aphids, imported cabbage butterfly

Physical Interference, Predators

Clover

Cabbage root fly

Predators

Green ground cover

Imported cabbage butterfly

Visual Masking

Crop

Intercrop

Pest(s) Reduced

Mechanism

Carrots

Onions

Carrot fly"

Chemical Repellent

Cauliflower

Corn spurry

Cabbage looper, flea beetles, aphids

Predators

Lamb’s-quarters

Imported cabbage butterfly

Predators

White or red clover

Cabbage aphids, imported cabbage butterfly

Physical Interference, Predators

Collards

Tomato, ragweed

Flea beetle

Chemical Repellent

Pigweed, lambs-quarters

Green peach aphid

Predators

Weedy ground cover

Cabbage aphid

Parasitic Wasps

Weedy ground cover with wild mustards

Flea beetle

Predators

Tomato, tobacco

Flea beetle

Chemical Repellent

Weedy ground cover

Flea beetle, cabbage butterfly

Weedy ground cover

Flea beetles

Visual Masking

Corn

Wild parsnip, wild mustard, chickweed, Shepherds purse, and lady’s thumb smartweed

Black cutworm

Parasitic Wasps

Pigweed

Fall armyworm

Giant ragweed

European corn borer

Parasitic Wasps

Sweet potatoes

Leafbeetles

Attract Pest To Alternative

Crop

Intercrop

Pest(s) Reduced

Mechanism

Beans

Leafhoppers, leaf beetle, fall armyworm

Physical Interference, Predators

Beans, weeds

Fall armyworm

Predators

Pigweed, Mexican Tea, goldenrod, beggertick

Fall army worm

Predators

Soybean

Corn earworm

Predators

Peanuts

Corn borer'

Visual Masking

Clover

Corn borer

Physical Interference

Cow pea

Sorghum

Leaf beetle

Chemical Repellent

Cucumber

Corn, broccoli

Striped cucumber beetle

Physical Interference

Crucifers

Wild mustards

Cabbageworms

Parasitic Wasps

Fruit trees

Rye, wheat, sorghum used as mulch

European red mite

Predators

Alder, bramble

Red spider mites'

Predators

Grapes

Wild blackberry

Grape leafhopper

Parasitic Wasps

Johnson grass

Pacific mite

Predators

Sudan grass, Johnson grass

Willamette mite

Predators

Kale, closely planted

Aphids

Visual Masking

Kale

Weedy ground cover

Beanfly

Physical Interference

Mung beans

New Zealand white clover

Fruit fly

Physical Interference

Crop

Intercrop

Pest(s) Reduced

Mechanism

Oats

Carrots

Thrips

Visual Masking

Onions

Ragweed

Oriental fruit moth

Parasitic Wasps

Peach

Strawberry

Oriental fruit moth

Predators

Ragweed, smartweed, lamb’s quarters, goldenrod

Oriental fruit moths

Radish

Broccoli

Green peach aphids

Parasitic Wasps

Soybean

Corn, weed cover

Corn earworm

Parasitic Wasps

Sicklepod

Velvet bean caterpillar, green stink bug

Desmodium sp., Croton sp., Cassia sp.

Corn earworm

Parasitic Wasps

Barley, wheat

Monitored only predators of soybean pests

Predators

Rye

Seedcorn maggot

Physical Interference

Squash

Corn

Cucumber beetle

Physical Interference

Corn, cow pea

Western flower thrips

Predators

Sugar beet

Manure

Pests preyed upon by predatory ground beetles

Predators

Broccoli

Green peach aphid

Parasitic Wasps

Sweet potato

Morning glory

Argus tortoise beetle‘

Parasitic Wasps

Crop

Intercrop

Pest(s) Reduced

Mechanism

Tamarack trees

White spruce and shrubs

Sawflies

Chemical Repellent

Tomato

Cabbage

Flea beetles

Chemical Repellent

Cabbage

Diamondback moth

Chemical Repellent

Turnip

Dutch white clover

Cabbage root maggot

Chemical Repellent

Vegetables

Wild carrot

Japanese beetle

Parasitic Wasps

Walnut

Weedy ground cover

Walnut aphid

Parasitic Wasps

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