Horticulture/Pests and Diseases of Lactuca

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Note to Contributors:
The Pest and Disease list pages should always be included on the genus or genera page. These lists should eventually be replaced by a "troubleshooting" section. (This notice will not appear on printouts or on the including page.)

Use {{:Horticulture/Pests and Diseases of {{SUBPAGENAME}}}} to include the list below (place it just below "Pests and Diseases")

Pests edit

Pea Aphid: Acyrthosiphon pisum
Bean Aphid: Aphis fabae
Brown Ambrosia Aphid: Dactynotus ambrosiae
Potato Aphid: Macrosiphum euphorbiae
Green Peach Aphid: Myzus persicae
Red Lettuce Aphid: Uroleucon pseudambrosiae
Cabbage Aphid: Brevicoryne brassicae
Lettuce Aphid: Nasonovia ribisnigri
Lettuce Root Aphid: Pemphigus bursarius

Aster Leafhopper: Macrosteles facifrons
Southern Garden Leafhopper: Empoasca solana

Silverleaf Whitefly: Bemisia argentifolii
Greenhouse Whitefly: Trialeurodes vaporariorum

Bugs

Pale Legume Bug: Lygus elisus
Western Tarnished Plant Bug: Lygus hesperus
Tarnished Plant Bug: Lygus lineolaris
False Cinch Bug: Nysius raphanus
Garden Fleahopper: Halticus bractatus

Western Flower Thrips: Frankliniella occidentalis

American Serpentine Leafminer: Liriomyza trifolii
Chrysanthemum Leafminer: Phytomyza syngenesiae

Banded Cucumber Beetle: Diabrotica balteata

Flea Beetles

Palestriped Flea Beetle: Systena blanda
Redheaded Flea Beetle: Systena frontalis

Caterpillars

Zebra Caterpillar: Ceramica picta
Corn Earworm: Helicoverpa/Heliothis zea
Variegated Cutworm: Peridroma saucia
Beet Armyworm: Spodoptera exigua
Yellowstriped Armyworm: Spodoptera ornithogalli
Cabbage Looper: Trichoplusia ni
Celery Leaftier: Udea rubigalis
Alfalfa Looper: Autographa californica Western US
Celery Looper: Anagrapha falcifera
Saltmarsh Caterpillar: Estigmene acrea
Western Corn Rootworm: Diabrotica virgifera virgifera
Western Yellowstriped Armyworm: Spodoptera praefica
Angle Shades: Phlogophora meticulosa
Autumnal Rustic: Eugnorisma glareosa
Cabbage Moth: Mamestra brassicae
Common Swift: Korscheltellus lupulina
Garden Dart: Euxoa nigricans
Ghost Moth: Hepialus humuli
The Gothic: Naenia typica
Grey Chi: Antitype chi
Heart and Club: Agrotis clavis
Heart and Dart: Agrotis exclamationis
Ingrailed Clay: Diarsia mendica
Large Yellow Underwing: Noctua pronuba
The Nutmeg: Discestra trifolii
Setaceous Hebrew Character: Xestia c-nigrum
The Shark: Cucullia umbratica
Small Angle Shades: Euplexia lucipara
Turnip Moth: Agrotis segetum

Slugs and Snails

Diseases edit

Rhizoctonia

Downy Mildew

Sclerotinia

Other Problems edit

Calcium Deficiency

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