Cucumber, Pumpkin, Squash: Angular leaf spot categories: Cucumber, Pumpkin, Squash Cucumber, Pumpkin, Squash Diseases Vegetables revision date: 2022-12-07 12:00 Angular leaf spot on cucumberPhoto by: R.S. Byther Biology Angular leaf spot is a bacterial disease which can affect cucumber and many related species. Leaves initially develop small, water-soaked spots which enlarge until limited by the […]
Cucumber, Pumpkin, Squash: Cucumber mosaic virus categories: Cucumber, Pumpkin, Squash Cucumber, Pumpkin, Squash Diseases Vegetables revision date: 2022-12-07 12:00 Biology Cucumber mosaic is a viral disease of cucumbers, melons, squash, and other plants. It is spread primarily by aphids, but can also be transmitted by mechanical means, infected seed, and by cucumber beetles. The early […]
Cucumber, Pumpkin, Squash: Curly top (Beet curly top virus) categories: Cucumber, Pumpkin, Squash Cucumber, Pumpkin, Squash Diseases Vegetables revision date: 2022-12-07 12:00 Curly top virus symptoms on tomatoPhoto by: R.S. Byther Biology Curly top is caused by a virus transmitted by the beet leafhopper. Many crops are affected, including tomato, bean, squash, cucumber, and pepper. […]
Cucumber, Pumpkin, Squash: Damping-off categories: Cucumber, Pumpkin, Squash Cucumber, Pumpkin, Squash Diseases Vegetables revision date: 2022-12-07 12:00 Damping-off of cucumber seedlingsPhoto by: R.S. Byther Biology Damping-off of seeds and seedlings is caused by fungi that remain in the soil for long periods of time. Infected seeds decay without germinating. Seedlings may be infected and fail […]
Cucumber, Pumpkin, Squash: Pollination failure categories: Cucumber, Pumpkin, Squash Cucumber, Pumpkin, Squash Diseases Vegetables revision date: 2022-12-07 12:00 Biology Fruits may begin to develop without pollination, but must be pollinated to continue normal growth. The unpollinated fruit remain small and may show a rot beginning at the blossom end. These fruits usually turn yellow and […]
Cucumber, Pumpkin, Squash: Powdery mildew categories: Cucumber, Pumpkin, Squash Cucumber, Pumpkin, Squash Diseases Vegetables revision date: 2022-12-07 12:00 Powdery mildew on cucumber leavesPhoto by: R.S. Byther Biology Powdery mildew is a common fungal disease of squash. Upper and lower leaf surfaces and stems are typically affected. Small, white spots quickly enlarge into patches of characteristic […]
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: 2023-04-04 12:00 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: 2022-12-07 12:00 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: 2023-04-04 12:00 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: 2023-04-04 12:00 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: 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 […]