Carrot: Carrot rust fly categories: Carrot Carrot Insects Vegetables revision date: 2022-12-07 12:00 Carrot rust fly larval damagePhoto by: A.L. Antonelli Biology The carrot rust fly adult is about 1⁄4″ long. The flies are shiny and dark green in color with yellow legs and heads. Females lay eggs around the crowns of host plants, which […]
Cantaloupe, Melons: Damping-off categories: Cantaloupe, Melons Cantaloupe, Melons Diseases Vegetables revision date: 2023-01-04 12:00 Damping-off of cucumber seedlingsPhoto by: R.S. Byther Biology Melon seeds and seedlings may be attacked by a fungus in the soil. Seeds may be rotted and seedlings may be infected and fail to emerge from the soil. Emerged seedlings are also […]
Cantaloupe, Melons: Powdery mildew categories: Cantaloupe, Melons Cantaloupe, Melons Diseases Vegetables revision date: 2024-06-05 10:24 Powdery mildew on cucumber leavesPhoto by: R.S. Byther Biology Powdery mildew is a common fungal disease of melons. Upper and lower leaf surfaces and stems are typically affected. Small white spots quickly enlarge into patches of characteristic powdery-white fungal growth. […]
Cantaloupe, Melons: Verticillium wilt categories: Cantaloupe, Melons Cantaloupe, Melons Diseases Vegetables revision date: 2023-01-04 12:00 Verticillium wilt causing necrosis on pumpkin leavesPhoto by: D.A. Inglis Biology Verticillium wilt is caused by a fungus which can persist in the soil for many years. It has a broad host range, including many vegetables (potato and tomato are […]
Broccoli, Cole crops: Aphids categories: Broccoli, Cole Crops Broccoli, Cole crops Insects Vegetables revision date: 2024-06-05 08:28 Aphids on kale leafPhoto by: C.A. Miles Biology Aphids are small, pear-shaped, soft-bodied insects. They may range in color from yellowish to a waxy gray-green. Aphids typically feed on the underside of leaves, in buds, or in heads […]
Broccoli, Cole crops: Cabbage maggot categories: Broccoli, Cole Crops Broccoli, Cole crops Insects Vegetables revision date: 2023-01-04 12:00 Cabbage maggots and damage on turnipPhoto by: A.L. Antonelli Biology The cabbage maggot is the larva of a gray fly that is about 3⁄16″ long. Females lay eggs near the base of plants such as cabbage, broccoli, […]
Broccoli, Cole crops: Black rot categories: Broccoli, Cole Crops Broccoli, Cole crops Diseases Vegetables revision date: 2023-01-04 12:00 Biology Black rot is a bacterial disease affecting most cultivated and weedy plants in the mustard family. Cabbage and cauliflower are the primary cultivated hosts in Washington. The bacteria enter via wounds or at the leaf margins. […]
Broccoli, Cole crops: Flea beetles categories: Broccoli, Cole Crops Broccoli, Cole crops Insects Vegetables revision date: 2024-06-05 08:28 Flea beetles and damage on kalePhoto by: C.A. Miles Biology Flea beetles are small, brown to metallic black beetles with a habit of jumping like fleas when disturbed. They feed on many plants including beets, kale, collards, […]
Broccoli, Cole crops: Imported cabbageworm categories: Broccoli, Cole Crops Broccoli, Cole crops Insects Vegetables revision date: 2024-06-07 06:33 Imported cabbageworm and damage on cabbagePhoto by: A.L. Antonelli Biology The imported cabbageworm is the larval stage of the cabbage butterfly. The adult butterfly has white wings, with black tips and spots on the forewings. Wingspan is […]
Broccoli, Cole crops: Clubroot categories: Broccoli, Cole Crops Broccoli, Cole crops Diseases Vegetables revision date: 2023-01-04 12:00 Clubroot symptoms on cabbagePhoto by: L.J. du Toit Biology Clubroot is a disease that affects plants in the mustard family. It is caused by a soil-borne fungus-like organism. Affected plants develop abnormally large roots which may become swollen […]
Broccoli, Cole crops: Downy mildew categories: Broccoli, Cole Crops Broccoli, Cole crops Diseases Vegetables revision date: 2023-01-04 12:00 Downy mildew symptoms on broccoliPhoto by: R.S. Byther Biology Downy mildew is a fungal disease typically found on leaves of broccoli, cabbage, and other plants in the mustard family including weeds. Leaves first show pale green to […]
Broccoli, Cole crops: Loopers categories: Broccoli, Cole Crops Broccoli, Cole crops Insects Vegetables revision date: 2024-06-07 06:33 Green alfalfa looperPhoto by: A.L. Antonelli Biology Loopers are typically green caterpillars up to about 1 1⁄2″ long. They may have pale or dark stripes along the body. They are distinguished by their characteristic looping or measuring-worm movement. Loopers […]
Broccoli, Cole crops: Thrips categories: Broccoli, Cole Crops Broccoli, Cole crops Insects Vegetables revision date: 2024-06-05 08:28 White speckling damage on pea leaf caused by thripsPhoto by: A.L. Antonelli Biology Thrips are tiny (≤1⁄20″), elongate, yellowish to dark insects. Thrips feeding can result in whitish stippling or streaking of leaves. Buds may be damaged, resulting […]
Broccoli, Cole crops: Oedema categories: Broccoli, Cole Crops Broccoli, Cole crops Diseases Vegetables revision date: 2022-12-07 12:00 Oedema symptoms on top and bottom of geranium leafPhoto by: R.S. Byther Biology Oedema is a physiological problem. Symptoms are usually seen on the lower side of leaves, but may occur on any part of the plant. Watery […]
Asparagus: Rust categories: Asparagus Asparagus Diseases Vegetables revision date: 2024-06-05 10:24 Asparagus rust fruiting bodies on stemPhoto by: D.A. Johnson Biology Asparagus rust is a fungal disease affecting the spears and foliage. Early symptoms include the development of oval yellow spots on the spears. These spots contain the fruiting bodies of the fungus, which are […]