Raspberry: Anthracnose Categories: Raspberry Raspberry Diseases Small Fruits Last review date: 2025-11-12 06:44 Last edit date: Raspberry anthracnose Photo by: R.S. Byther Biology Anthracnose is a fungal disease. It occurs primarily on raspberry canes but can also affect leaves and fruit. Initial infections typically occur on the lower portions of canes toward the inside of […]
Raspberry: Boron deficiency Categories: Raspberry Raspberry Diseases Small Fruits Last review date: 2025-11-12 06:55 Last edit date: Boron deficiency symptoms on leaves Photo by: R.S. Byther Biology Boron deficiency affects the level of growth hormones in plant tissue, as well as pollen tube growth. Bud break in the spring is delayed, and many buds die […]
Raspberry: Fruit rot and cane Botrytis Categories: Raspberry Raspberry Diseases Small Fruits Last review date: 2025-11-12 07:16 Last edit date: Botrytis on fruit Photo by: R.S. Byther Biology Fruit rot is caused by a fungus. The disease is characterized by a watery, soft rot of infected fruit, either in the field or in storage. In […]
Raspberry: Phytophthora root rot Categories: Raspberry Raspberry Diseases Small Fruits Last review date: 2025-11-12 07:37 Last edit date: Phytophthora root rot on raspberry Photo by: R.S. Byther Biology Phytophthora root rot can be a problem in the Pacific Northwest when raspberries are planted in areas with poor drainage. The fungus attacks the fine roots, which […]
Raspberry: Powdery mildew Categories: Raspberry Raspberry Diseases Small Fruits Last review date: 2025-11-12 07:46 Last edit date: Powdery mildew on raspberry Photo by: R.S. Byther Biology Powdery mildew is a fungal disease which can affect leaves, shoot tips, new canes, and fruit of red and black raspberries, blackberries, and hybrids including ‘Logan’ berries. Leaves show […]
Raspberry: Spur blight Categories: Raspberry Raspberry Diseases Small Fruits Last review date: 2025-11-12 08:11 Last edit date: Raspberry spur blight Photo by: R.S. Byther Biology In early April, pin-point size black fruiting bodies (perithecia) can be found in the gray affected areas of cane tissue. The fruiting bodies release ascospores, which infect leaves on both […]
Raspberry: Yellow rust Categories: Raspberry Raspberry Diseases Small Fruits Last review date: 2025-11-12 08:23 Last edit date: Raspberry rust Photo by: R.S. Byther Biology Yellow rust is a fungal disease of the leaves and succulent tissues of red raspberries. Leaf infection occur in the spring, causing a yellowish to orange spotting on the upper surfaces. […]
Raspberry: Aphids Categories: Raspberry Raspberry Insects Small Fruits Last review date: 2025-12-03 10:06 Last edit date: Raspberry aphid Photo by: E.P. Breakey Biology Aphids are small, soft-bodied, pear-shaped insects. They vary in color from yellow to green to brownish. Aphids on raspberries are typically found in colonies on the young growing tips of canes or […]
Raspberry: Brown marmorated stink bug Categories: Raspberry Raspberry Insects Small Fruits Last review date: 2026-08-29 08:17 Last edit date: Brown marmorated stink bug adult Photo 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 […]
Raspberry: Cutworms and armyworms Categories: Raspberry Raspberry Insects Small Fruits Last review date: 2025-11-12 01:34 Last edit date: Climbing cutworm, dark brown and hairless 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 pale green to brownish caterpillar are hairless, […]