Culture & Identification, Ch 8 Part 2 Insects

Cultivation & Identification, Chapter 8, Insects Vegetable Pests aphids armyworms cabbage loopers cabbage root maggot Colorado potato beetle corn rootworm cucumber beetle

Cultivation & Identification, Chapter 8, Insects Aphids Prevention floating row covers reduce nitrogen increase beneficials - lacewings - aphid midges Control insecticidal soap Neem Pyrethrum

Cultivation & Identification, Chapter 8, Insects Armyworms Prevention floating row covers increase beneficials - parasitic wasps - parasitic flies Control handpick spray BT spray Neem

Cultivation & Identification, Chapter 8, Insects Cabbage Looper Prevention floating row covers increase beneficials - predatory wasps Control handpick spray BT spray Neem Pyrethrin Sabadilla

Cultivation & Identification, Chapter 8, Insects Cabbage Root Maggot Prevention alkaline soil ½ cup wood ashes/plant parasitic nematodes Control stem shields/ tar paper row covers no compost destroy infected plants

Cultivation & Identification, Chapter 8, Insects Cabbage Root Maggot  Photo courtesy Dr. Lloyd Dosdall, Alberta Agriculture

Cultivation & Identification, Chapter 8, Insects Colorado Potato Beetle Prevention beneficial nematodes nectar & pollen- rich plants Control handpick row covers spray BT Neem Pyrethrin Sabadilla Rotenone

Cultivation & Identification, Chapter 8, Insects Corn Rootworm Prevention rotate crops plant in warm soil cultivate deeply Control apply parasitic nematodes to soil

Cultivation & Identification, Chapter 8, Insects Cucumber Beetle Prevention grow resistant cultivars to wilt & mosaic destroy infected plants rotate gourd crops with legumes Control row covers apply parasitic nematodes Sabadilla Rotenone Pyrethrin

Cultivation & Identification, Chapter 8, Insects Vegetable Pests cutworm European corn borer flea beetle hornworm imported cabbageworm Japanese beetle leafhopper

Cultivation & Identification, Chapter 8, Insects Cutworm Prevention plant collars drench parasitic nematodes/ 1 week before planting soldier beetles help apply wood ashes Control mix BT with moist bran & molasses, scatter

Cultivation & Identification, Chapter 8, Insects European Corn Borer Prevention rotate crops destroy infected plants fall clean-up apply parasitic wasps Control spray BT on leaves, & tips of ears Ryania Rotenone Sabadilla

Cultivation & Identification, Chapter 8, Insects Flea Beetle Prevention row covers susceptible plants grow in some shade Control dust with diatomaceous earth Pyrethrum Rotenone

Cultivation & Identification, Chapter 8, Insects Hornworm Prevention attract native parasites by planting pollen & nectar-rich flowers Control handpick spray with BT when caterpillars are small

Cultivation & Identification, Chapter 8, Insects Imported Cabbageworm Prevention row covers attractive predatory wasps yellow sticky traps Control handpick spray BT Neem Pyrethrin Sabadilla

Cultivation & Identification, Chapter 8, Insects Imported Cabbageworm  Photo courtesy Dr. Lloyd Dosdall, Alberta Agriculture

Cultivation & Identification, Chapter 8, Insects Japanese Beetle Prevention treat lawn w/ milky-spore disease hanging traps Control handpick early am Sabadilla Pyrethrum Rotenone

Cultivation & Identification, Chapter 8, Insects Leafhopper Prevention row covers Control diatomaceous earth insecticidal soap Pyrethrum Rotenone

Cultivation & Identification, Chapter 8, Insects Vegetable Pests leaf miner Mexican bean beetle mites onion maggot pickleworm slugs and snails squash bug

Cultivation & Identification, Chapter 8, Insects Leaf Miner Prevention row covers remove infected leaves attract beneficials - parasitic wasps Control prevention is best larvae in leaves; it is too late Neem for adults

Cultivation & Identification, Chapter 8, Insects Mexican Bean Beetle Prevention destroy yellow eggs row covers fall clean up spined soldier bugs parasitic wasps trap crop/soybeans Control handpick Neem Pyrethrum Rotenone Sabadilla

Cultivation & Identification, Chapter 8, Insects Mites Prevention spray plants with water to discourage attract predators - ladybugs - lacewings Control insecticidal soaps Sabadilla Pyrethrum Rotenone

Cultivation & Identification, Chapter 8, Insects Onion Maggot Prevention row covers diatomaceous earth fall clean up plant onions as a trap crop elsewhere Control prevention best when eggs are laid in bulb, too late

Cultivation & Identification, Chapter 8, Insects Pickleworm Prevention fall clean up deep cultivation early maturing cultivars summer squash as trap crop Control prevention best once entered the plants, difficult to remove

Cultivation & Identification, Chapter 8, Insects Slugs & Snails Prevention traps grapefruit rinds cabbage leaves copper flashing beer Control wood ashes diatomaceous earth

Cultivation & Identification, Chapter 8, Insects Squash Bug Prevention row covers fall clean up free of debris attract beneficials trellises Control handpick Sabadilla Pyrethrum Rotenone

Cultivation & Identification, Chapter 8, Insects Vegetable Pests squash vine borer stinkbugs tarnished plant bug thrips webworms whitefly wireworm

Cultivation & Identification, Chapter 8, Insects Squash Vine Borer Prevention row covers until blossoms appear wrap stem bases with stockings/ prevent egg laying Control slit open infested vines/crush pests dust base w/ Pyrethrum, Sabadilla, Rotenone

Cultivation & Identification, Chapter 8, Insects StinkbugsStinkbugs stinkbug 2 stinkbug 2 Prevention fall clean up attract native beneficials parasitic wasps Control handpick Pyrethrum Sabadilla Rotenone

Cultivation & Identification, Chapter 8, Insects Tarnished Plant Bug Prevention fall clean up white sticky traps attract native beneficials Control row covers Rotenone Sabadilla

Cultivation & Identification, Chapter 8, Insects Thrips Prevention fall clean up aluminum foil mulch yellow sticky traps attract lacewings Control insecticidal soap Pyrethrum Rotenone

Cultivation & Identification, Chapter 8, Insects Webworms Prevention row covers attract native beneficials Control handpick spray BT Pyrethrum

Cultivation & Identification, Chapter 8, Insects Whitefly Prevention yellow sticky traps attract beneficials check transplants from greenhouse Control insecticidal soap Pyrethrum Rotenone

Cultivation & Identification, Chapter 8, Insects Wireworm Prevention parasitic nematodes cultivate soil deeply & often to expose to predators Control trap w/ pieces of potato buried in soil change every other day

Cultivation & Identification, Chapter 8, Insects Conclusion When dealing with insect pests: Rule 1prevention is better 2cleanliness: most important ritual of the garden 3daily monitoring 4know what you are treating