Ixora – Disorders
Reddish/Purple Spots Chlorosis of Leaves Mealybugs Aphids Sooty Mold Dieback Spots and Holes Ixora – Disorders
under the microscope
Cercospora Leaf Spot
Brief: Cercospora is a very common fungal disorder found in the Ligustrum (privet) in south Florida. It is considered a foliar disease and can be devastating to some plants. Attacks: While infection is most commonly found on the leaves, it can sometimes attack the stem, crown, and fruits of a plant Season: All year long
Cercospora Leaf Spot Read More »
Ganoderma
Brief: Ganoderma zonatum is a lethal disease of palms both in the landscape and in its natural habitats. While the disease is prevalent in southern Florida, it can be found in other parts of the state and into Georgia and South Carolina. Attacks: All varieties of palms are susceptible to Ganoderma Ganoderma applanatum and Ganoderma
Spartan Juniper – Twig Dieback
Brief: Juniper chinensis “Spartan”, is dioecious evergreen conifer native to China, Mongolia, and the Himalayas. Possible Causal agent: Irrigation: Junipers and Cypress varieties are not very fond of moist or wet soils. Root rot may occur, particularly if plants are in wet, poor drained soils Twig Blight: Junipers are generally susceptible to tip and needle
Spartan Juniper – Twig Dieback Read More »
Podocarpus Makii Disorder – DIEBACK
Brief Dieback is a symptom – it refers to the progressive death of twigs, branches, or shoots, typically from the tip inward. It can be caused by many things: drought, root rot, pests, cold damage, or fungal infections. Think of dieback as the result, fungi, bacteria, insects or environmental stress as the causal agent. Dieback,
Podocarpus Makii Disorder – DIEBACK Read More »
Identifying Plant Disorders by Causal Agents
One method of identifying what is wrong with your plant is to identify the Casual Agent. The causal agent is any entity (cultural, manmade, nutrition, insect or pathogen) that produces an effect or is responsible for causing a disorder in the plant. In other words, the casual agent is the reason why your plant is
Identifying Plant Disorders by Causal Agents Read More »