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Eggplant

General Disease Management in Eggplant

Diseases

Insect/Mite Pests

Diseases

Curly top

Verticillium wilt

Insect/Mite Pests

Spittlebug

Tomato hornworm

(Click on photo to enlarge)

General Disease Management in Eggplant

Pepper & Eggplant Disease Guide (pdf) – A Practical Guide for Seedsmen, Growers and Agricultural Advisors. Published by Seminis Vegetable Seeds, Inc.’s Plant Health Department.

Diseases

Curly top

Disease: Curly top
Pathogen: Various strains of Beet curly top virus (BCTV), which are vectored by the beet leafhopper (Circulifer tenellus)
Host crops: Numerous plant species including many vegetables such as bean, beet, carrot, eggplant,
coriander, pepper, potato, tomato, various cucurbits such as squash, cucumber, pumpkin, and
watermelon, etc.

tomato plants showing symptoms of beet curly top virus — Symptoms of curly top on tomato leaves.
**Photo Source:** Phil Hamm, Oregon State University

symptoms of beet curly top virus on tomato plants — Symptoms of curly top on tomato leaves.
**Photo Source:** Phil Hamm, Oregon State University

symptoms of beet curly top-1 — Symptoms of curly top on tomato leaves.
**Photo Source:** Phil Hamm, Oregon State University

tomato plants showing symptoms of beet curly top virus-4 — Symptoms of curly top on tomato leaves.
**Photo Source:** Krishna Mohan, University of Idaho

tomato plants showing symptoms of beet curly top virus-5 — Symptoms of curly top on tomato leaves.
**Photo Source:** Krishna Mohan, University of Idaho

On-Line Resources:

Pacific Northwest Plant Disease Management Handbook: Bean, All (Phaseolus vulgaris) – Curly Top.

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Verticillium wilt

Disease: Verticillium wilt
Pathogen: Verticillium species
Host crops: Numerous vegetables including many brassica vegetables (but not broccoli), cucumber,
eggplant, pepper, potato, pumpkin, radish, spinach, tomato, watermelon, etc.

verticillum wilt damage on eggplant-1 — **Photo Source:** Lindsey du Toit

verticillium wilt damage on eggplant-2 — **Photo Source:** Lindsey du Toit

verticillium wilt damage on eggplant-3 — Light brown vascular discoloration in the stem of an eggplant infected with Verticillium dahliae.
**Photo Source:** Lindsey du Toit

Online Resources:

Pacific Northwest Plant Disease Management Handbook: Eggplant (Solanum melongena) – Verticillium Wilt.
Fusarium and Verticillium Wilts of Tomato, Potato, Pepper, and Eggplant. The Ohio State University Extension.
See Diseases, pests, and other problems common to many vegetables: Verticillium wilt.

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Insect/Mite Pests

Spittlebug

Common name: Spittlebug (e.g., meadow spittlebug)
Latin binomial: Meadow spittlebug = Philaenus spumarius

spittlebug on eggplant-2 — **Photo Source:** Eric Sorensen

spittlebug on eggplant-1 — **Photo Source:** Eric Sorensen

Online Resources:

Strawberry Pests. Pacific Northwest Insect Management Handbook. Chapter: Small Fruit, Section: Strawberry.
Seasonal development and life cycle – Spittlebugs. UC IPM Online. University of California.
Meadow spittlebug. Pacific Northwest Insect Management Handbook.

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Tomato hornworm

Common name (of damaging stage): Tomato hornworm
Latin binomial: Manduca quinquemaculata
Host crops: Pepper, eggplant, potato, and tomato.

tomato hornworm-2 — Tomato hornworm is a plant defoliator feeding on entire leaves, small stems, and even parts of immature fruit. Often this defoliation is first noticed near the end of the growing season (August or early September) when the hornworm is approaching maturity.
**Photo Source:** Michael Bush, WSU Extension, Yakima, WA

tomato hornworm on ground — The tomato hornworm has one generation per year and overwinters as a pupa in the soil. Adults will emerge in the spring.
**Photo Source:** Michael Bush, WSU Extension, Yakima, WA

measuring tomato hornworm adult's size — The tomato hornworm adult is a large (3.5 to 5.25-inch wingspan) moth known as the five-spotted hawk moth for the five pairs of orange spots on the abdomen. The adult is rarely encountered by growers and home gardeners as it tends to fly around dusk.
**Photo Source:** Michael Bush, WSU Extension, Yakima, WA

On-Line Resources:

Pacific Northwest Insect Management Handbook. Washington State Chapter: Vegetables, Section: Tomato Part2: Fleabeetle to Wireworm.
Vegetables: Tomato: Tomato hornworm. Washington State University Hortsense.
UC Pest Management Guidelines: Eggplant Hornworms. UC IPM Online, University of California.

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PDF Accessibility

If you need the content provided on this site in an alternate format or for further information on the Vegetable Seed Pathology program,

please contact: Lindsey du Toit at dutoit@wsu.edu or at 360-848-6140.

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