Cucumber, Pumpkin, Squash: Root rot categories: Cucumber, Pumpkin, Squash Cucumber, Pumpkin, Squash Diseases Vegetables revision date: 2022-12-07 12:00 Top to bottom: root rot, healthy, Fusarium wilt, healthyPhoto by: R.S. Byther Biology Several species of fungi can cause a wilting and root rot of squash and related plants. Above-ground symptoms may not be noticed until vines […]
Cucumber, Pumpkin, Squash: Verticillium wilt categories: Cucumber, Pumpkin, Squash Cucumber, Pumpkin, Squash 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 which can persist in the soil for many years. It has a broad host range, including many vegetables (potato […]
Cucumber, Pumpkin, Squash: White mold categories: Cucumber, Pumpkin, Squash Cucumber, Pumpkin, Squash Diseases Vegetables revision date: 2022-12-07 12:00 Sclerotinia white mold on bean pods and stemsPhoto by: R.S. Byther Biology White mold is a fungal disease which affects stems and fruit of cucumbers and squash. Initial infections commonly occur through dead tendrils, withered flowers on […]
Cucumber, Pumpkin, Squash: Brown marmorated stink bug categories: Cucumber, Pumpkin, Squash Cucumber, Pumpkin, Squash 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 […]
Cucumber, Pumpkin, Squash: Slugs categories: Cucumber, Pumpkin, Squash Cucumber, Pumpkin, Squash 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 size from as little as 1⁄4″ up to several inches in length, […]
Cucumber, Pumpkin, Squash: Spider mites categories: Cucumber, Pumpkin, Squash Cucumber, Pumpkin, Squash Insects Vegetables revision date: 2024-06-05 08:29 Spider mites under microscopePhoto by: L.K. Tanigoshi Biology Spider mites are tiny, eight-legged mites which range in color from yellowish to green or red. They typically feed on the underside of leaves, causing a yellowish to bronze […]
Cucumber, Pumpkin, Squash: Squash bug categories: Cucumber, Pumpkin, Squash Cucumber, Pumpkin, Squash Insects Vegetables revision date: 2024-06-05 10:40 Squash bug adult and nymphsPhoto by: Unknown Biology The squash bug attacks squash, pumpkin, melons, and related crops. Adults are typically dark brown, but may have gray or light brown markings. They are about 3⁄4″ long at […]
Cucumber, Pumpkin, Squash: Western spotted cucumber beetle categories: Cucumber, Pumpkin, Squash Cucumber, Pumpkin, Squash Insects Vegetables revision date: 2024-06-05 10:40 Western spotted cucumber beetlePhoto by: K. Grey Biology The western spotted cucumber beetle is a pest of many ornamentals and vegetables. About 1⁄4″ long, the adult beetles have yellow wing covers with black spots. The […]
Corn: Root, stalk, and ear rots categories: Corn Corn Diseases Vegetables revision date: 2022-12-07 12:00 Corn stalk rot causing brown decayed rootsPhoto by: OSU slide library Biology Several fungi cause rots of roots, stalks, and ears of corn. These fungi may be carried on the seed, and may result in poor germination and seedling death. […]
Corn: Seed rot and seedling blight (damping-off) categories: Corn Corn Diseases Vegetables revision date: 2022-12-07 12:00 Damping-off of cucumber seedlingsPhoto by: R.S. Byther Biology Several fungi can cause seed rots and seedling blights of corn. These can be carried on the seed, or can overwinter in the soil or infected plant debris. Seeds planted in […]
Corn: Smut categories: Corn Corn Diseases Vegetables revision date: 2022-12-07 12:00 Corn head smutPhoto by: R.S. Byther Biology Two types of smut occur on corn in the Pacific Northwest. Both are fungal diseases. Common smut may occur on any above-ground portion of the plant, causing gall-like swellings. The galls are initially covered with a greenish […]
Corn: Brown marmorated stink bug categories: Corn Corn Insects Vegetables revision date: 2024-06-05 10:13 Brown marmorated stink bugs feeding on corn, damage to kernelsPhoto by: Gerald Brust, Univ of Maryland 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 […]
Corn: Corn aphids categories: Corn Corn Insects Vegetables revision date: 2024-06-05 08:28 Corn aphids on sheathPhoto by: Unknown Biology Aphids are small, soft-bodied, pear-shaped insects. They may vary in color from yellow to green to dark. Aphids typically feed in colonies on the leaves, often preferring the newer growth. Infested leaves turn yellow and may […]
Corn: Corn earworm categories: Corn Corn Insects Vegetables revision date: 2023-04-04 12:00 Corn earworm damagePhoto by: A.L. Antonelli Biology The corn earworm is the caterpillar of a light to dark brown moth with a 1 1⁄2″ wingspan. The caterpillars are up to 1 1⁄2″ long at maturity. They vary widely in color, but typically have darker stripes […]
Corn: Cutworms and armyworms categories: Corn Corn Insects Vegetables revision date: 2024-06-07 06:33 Tan armyworm caterpillar Photo by: K. Grey Biology Cutworms and armyworms are the larvae of noctuid moths. These common moths are medium-sized with fairly dull coloration. The greenish, grayish, or tan caterpillars are hairless, nocturnal, and generally spotted, striped, or otherwise marked. […]
Corn: Earwigs categories: Corn Corn Insects Vegetables revision date: 2024-06-12 08:55 Adult European earwigPhoto by: M. Bush Biology Earwigs are reddish-brown insects about 3⁄4 inch or less in length. Both males and females have pincers at the rear end. Earwigs are largely beneficial, feeding on many pests such as aphids, mites, and nematodes, as well […]
Corn: Spider mites categories: Corn Corn Insects Vegetables revision date: 2022-12-07 12:00 Spider mite damage on leafPhoto by: A.L. Antonelli Biology Spider mites are tiny, eight-legged mites which may range in color from yellowish to green or red. They typically feed on the underside of leaves, causing a yellowish to bronze stippling or speckling of […]
Corn: Western spotted cucumber beetle categories: Corn Corn Insects Vegetables revision date: 2023-04-04 12:00 Western spotted cucumber beetlePhoto by: K. Grey Biology The western spotted cucumber beetle is a pest of many ornamentals and vegetables. About 1⁄4″ long, the adult beetles have yellow wing covers with black spots. The rest of the body is black. […]
Carrot: Leaf spot categories: Carrot Carrot Diseases Vegetables revision date: 2024-06-05 02:07 Cercospora leaf spot on carrotPhoto by: R.S. Byther Biology Leaf spot of carrot is also known as early blight. It is a fungal disease. The disease produces leaf and stem spots, primarily attacking young leaves. Initially the spots are small, with yellow halos […]
Carrot: Root-knot nematode categories: Carrot Carrot Diseases Vegetables revision date: 2022-12-07 12:00 Root knot nematode damage on carrotPhoto by: R.S. Byther Biology Nematodes are microscopic, parasitic worms that live in the soil and in infected plant parts. Carrot roots attacked by root-knot nematodes are stunted, may have many short, bushy side roots, and are generally […]