What Is Wrong With My Kinnikinnick?

Are there any small translucent spots on leaves, spots later turn black?

Do the roots and crowns have dark brown spots at the soil level?

Do the leaves have spots or blotches?

Are there any rust-colored spots on foliage?

Are there wet, sappy areas on the bark of the main trunk, which may crack?

Are the leaves curled and distorted, sticky to the touch?

Are the leaves cupped and distorted?

Do the leaves have white, cottony clusters on them?

Are the leaves and twigs covered with small, armored insects?

Are the leaves yellow, branches, and leaves are covered with small bumps?

Bacterial leaf spot causes circular translucent spots scattered over the leaf surface. These spots turn brownish-black and may spread to form large patches of dead tissue. To prevent the spread of this disease, avoid working around wet plants. Remove and destroy affected parts. Spray Bordeaux mix on remaining plants.

These symptoms indicate fungal disease Phytophthora Root and Crown Rot. Phytophthora pathogens are favored by wet conditions, and the risk of disease can be reduced with good water management. The disease tends to affect plants in poorly drained areas, where susceptible plants are surrounded by standing water or saturated soil for prolonged periods. Provide adequate drainage and know the water needs of individual plants.

Your plant is suffering from a fungal leaf spot. These can come from several fungus diseases, causing spots to occur on foliage. Spots may enlarge rapidly, especially in wet weather. Destroy infected leaves or plants. Spray plants with sulfur to prevent the disease from spreading, especially if the weather is wet. Spray between rains. Prevent problems by thinning plants to provide good air circulation.

Rust-colored spots on foliage indicate a fungal disease - Rust. Provide good air circulation around plants by thining them. Avoid making leaves wet when watering. All infected leaves should be removed. Spray leaves with sulfur early in the season to prevent rust or to treat mild infections.

Larvae of flathead borers tunnel beneath the bark, causing wet, sappy on the bark of the main trunk. Boring may kill limbs or entire trees. Prevention is the most effective management approach for flatheaded borers, which typically attack trees that have been previously injured or damaged. Providing proper care and protecting landscape plants from injury will make them less attractive to the borers. Avoid pruning spring-summer while adults are active. Properly dispose of infested wood material, as beetles may emerge from logs and attack nearby plants.

Distorted and sticky leaves and stems are caused by aphids. These tiny insects cluster under leaves and on growing tips where they feed on plant sap. Leaves, stems, and buds get distorted and later leaves and flowers drop from the plant. You can control them by washing them off the plant with water spray. Insecticidal soap should be used only with severe infestations.

Cupped and distorted leaves on trees indicate psyllids. The eggs and larvae of this tiny insect overwinter on buds and infest new leaves in spring. At the first sign of damage, spray your plant with insecticidal soap, or pyrethrin for serious infestations.

White, cottony clusters on leaves are caused by mealybugs. These tiny insects are covered with a fluffy white coating. They feed by sucking plants sap. They produce the sticky substance honeydew which makes leaves sticky. You can control them by washing them off the plant with water spray. Insecticidal soap should be used with severe infestations.

Small, armored insects on leaves and twigs are armored scales. These tiny, shelled insects often feed on the undersides of the leaves, causing an unhealthy appearance with yellowish blotches on the upper leaf surfaces. Scrape off minor infestations with your fingernail. Prune out badly infested growth, or use a soft brush and soapy water to gently scrub the scales off the stems. Control scales by spraying insecticidal oil during the growing season.

Soft scales are known to attack Kinnikinnick. Scrape off minor infestations with your fingernail. Prune out badly infested growth, or use a soft brush and soapy water to gently scrub the scales off the stems. Control scales by spraying insecticidal oil during the growing season.

If there are webbed nests in tree branches the culprits are tent caterpillars. Tent caterpillars can be controlled by manually destroying their nests or egg cases, spraying leaves with BTK at the first sign of damage, or applying pyrethrin spray as a last resort.