Pepper, Eggplant: Mosaic viruses categories: Pepper, Eggplant Pepper, Eggplant Diseases Vegetables revision date: 2022-12-07 12:00 Cucumber mosaic virus symptoms on pepper leavesPhoto by: L.J. du Toit Biology Several viruses can cause mosaic symptoms in peppers. Most of these viruses are transmitted by aphids, but Tobacco Mosaic Virus is also transmitted by mechanical means including tools […]
Pepper, Eggplant: Physiological leaf roll categories: Pepper, Eggplant Pepper, Eggplant Diseases Vegetables revision date: 2022-12-07 12:00 Tomato physiological leaf rollPhoto by: R.S. Byther Biology Physiological leaf roll of pepper and eggplant is a cultural problem associated with drought, high soil moisture, or high temperatures. The leaves of the plants roll downward and become leathery or […]
Pepper, Eggplant: Verticillium wilt categories: Pepper, Eggplant Pepper, Eggplant Diseases Vegetables revision date: 2022-12-07 12:00 Verticillium wilt causing death of squash plantsPhoto by: R.S. Byther Biology Verticillium wilt is caused by a fungus commonly found in the soil. Many species of plants can be affected. Potato and tomato are favored hosts. Infected peppers and eggplants […]
Pepper, Eggplant: Brown marmorated stink bug categories: Pepper, Eggplant Pepper, Eggplant Insects Vegetables revision date: 2024-06-05 10:13 Brown marmorated stink bug adultPhoto by: M. Bush Biology The brown marmorated stink bug (BMSB) is an introduced pest species from Asia that is spreading quickly across the United States. Nymphs and adults feed on a wide variety […]
Pepper, Eggplant: Flea beetles categories: Pepper, Eggplant Pepper, Eggplant Insects Vegetables revision date: 2024-06-05 10:25 Adult flea beetle damage on potato leafPhoto by: Unknown 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, radish, and many […]
Pepper, Eggplant: Whitefly categories: Pepper, Eggplant Pepper, Eggplant Insects Vegetables revision date: 2024-06-05 02:07 WhitefliesPhoto by: R.D. Akre Biology Whiteflies are common pests in the greenhouse and garden. The adult whitefly is a tiny (1/10″ or less), white, moth-like insect. They typically feed on the underside of leaves, flying up in clouds when disturbed. The […]
Pea: Aphanomyces root rot categories: Pea Pea Diseases Vegetables revision date: 2022-12-07 12:00 Aphanomyces root rot on peaPhoto by: N.J. Grunwald Biology Aphanomyces root rot is caused by a fungus which attacks the underground portions of the plant. The lower stem and roots initially show long, soft, water-soaked lesions which can spread throughout the root […]
Pea: Pea wilt categories: Pea Pea Diseases Vegetables revision date: 2022-12-07 12:00 Pea Fusarium wiltPhoto by: D.A. Inglis Biology Pea wilt is caused by a fungus. Several races of the fungus occur and may cause different symptoms. Typically, plants are yellow, stunted, wilted, and often die. Plants affected by races 1, 5, and 6 may […]
Pea: Powdery mildew categories: Pea Pea Diseases Vegetables revision date: 2024-06-05 02:03 Powdery mildew on peaPhoto by: R.S. Byther Biology Powdery mildew is a fungal disease which attacks the leaves, pods, and stems. Leaves and stems develop discolored spots. The spots later show characteristic white mats of powdery fungal growth which give a bluish cast […]
Pea: Root rot categories: Pea Pea Diseases Vegetables revision date: 2022-12-07 12:00 Top to bottom: root rot, healthy, Fusarium wilt, healthyPhoto by: R.S. Byther Biology Several fungal root rots can affect peas. Typical symptoms of root rots are stunting, yellowing, and dieback of aboveground portions of the plants. Root systems of affected plants are smaller […]
Pea: Seed rot and damping-off categories: Pea Pea Diseases Vegetables revision date: 2022-12-07 12:00 Damping-off of cucumber seedlingsPhoto by: R.S. Byther Biology Several soil-borne fungi can cause seed rots and damping-off of pea seedlings. Infected seeds decay without germinating. Seedlings may be infected and fail to emerge from the soil. Emerged seedlings are also attacked, […]
Pea: Virus diseases categories: Pea Pea Diseases Vegetables revision date: 2022-12-07 12:00 Virus-infected peasPhoto by: R.S. Byther Biology Several virus diseases affect peas. Pea Enation Mosaic Virus, Pea Seedborne Mosaic Virus, and Pea Streak Viruses are viruses of importance in Washington. These viruses are spread by aphids including the pea aphid. Pea Seedborne Mosaic Virus […]
Pea: Brown marmorated stink bug categories: Pea Pea Insects Vegetables revision date: 2024-06-05 10:13 Brown marmorated stink bug adultPhoto by: M. Bush Biology The brown marmorated stink bug (BMSB) is an introduced pest species from Asia that is spreading quickly across the United States. Nymphs and adults feed on a wide variety of plant hosts. […]
Pea: Cutworms and armyworms categories: Pea Pea Insects Vegetables revision date: 2024-06-07 06:33 Alfalfa looper and damagePhoto by: A.L. Antonelli Biology Cutworms and armyworms are the larvae of noctuid moths. These common moths are medium-sized with fairly dull coloration. Several species may feed on peas. The greenish, grayish, or tan caterpillars are hairless, nocturnal, and […]
Pea: Pea aphid categories: Pea Pea Insects Vegetables revision date: 2024-06-05 08:28 Pea aphidPhoto by: Unknown Biology The pea aphid is a green to pinkish, pear-shaped, soft-bodied insect. It is usually found feeding in large colonies on the stems and undersides of leaves near the tips of new growth. Aphid feeding may cause foliage to […]
Pea: Pea leaf weevils categories: Pea Pea Insects Vegetables revision date: 2024-06-05 10:13 Pea leaf weevil damagePhoto by: K. Grey Biology The pea leaf weevil is a small brownish-gray beetle about 1⁄5″ long. Adults are marked with lighter longitudinal lines on the back. They feed on the leaves, cutting out semicircular pieces from leaf margins. […]
Pea: Pea Moth categories: Pea Pea Insects Vegetables revision date: 2022-12-07 12:00 Pea moth larvaPhoto by: A. L. Antonelli Biology The pea moth, Cydia nigricana, is a “sometimes” pest of the homegrown peas. Its presence is rarely detected until the gardener begins to harvest mature peas. At this time, as the peas are shelled, it […]
Pea: Slugs categories: Pea Pea Insects Vegetables revision date: 2024-06-05 10:23 Slug damage and slimePhoto by: R.S. Byther Biology Slugs are common garden pests in western Washington. They resemble snails, but lack shells. They may vary in length from as little as 1⁄4″ up to several inches in length, depending on age and species. Foliage […]
Onions, Garlic: Basal rot categories: Onions, Garlic Onions, Garlic Diseases Vegetables revision date: 2022-12-07 12:00 Onion basal rot in early seasonPhoto by: L.J. du Toit Biology Basal rots of onion, garlic, and related species are caused by fungi. Affected plants are yellowed, wilted, and grow poorly. Reddish discoloration may be present on affected garlic, while […]
Onions, Garlic: Downy mildew categories: Onions, Garlic Onions, Garlic Diseases Vegetables revision date: 2022-12-07 12:00 Downy mildew on onionPhoto by: R.S. Byther Biology Downy mildew is a fungal disease affecting onions and related species, including weedy species. Leaves initially develop pale, elongate patches. The spots may be water-soaked at first, then later appear somewhat purplish. […]