Articles
Fungal leaf spot decision path: Confirm the tissue pattern and its progression before treating. Confirm: Look for repeated spots with defined margins, halos, concentric patterning, or fruiting structures that enlarge during wet or humid conditions. Compare with orange rust pustules, water-soaked bacterial lesions, sunburn, spray injury, and nutrient patterns. Start with culture and sanitation: Photograph […]
Fungal leaf spot decision path: Treat only after the defining evidence and progression support this condition. Confirm: Look for repeated spots with defined margins, halos, concentric patterning, or fruiting structures that enlarge during wet or humid conditions. Compare with orange rust pustules, water-soaked bacterial lesions, sunburn, spray injury, and nutrient patterns. Start with culture and […]
Fungal leaf spot decision path: Use prevention after the active problem is stable and the likely environmental driver is understood. Confirm: Look for repeated spots with defined margins, halos, concentric patterning, or fruiting structures that enlarge during wet or humid conditions. Compare with orange rust pustules, water-soaked bacterial lesions, sunburn, spray injury, and nutrient patterns. […]
This comparison helps growers separate three problems that can all look like leaf spots from a distance: fungal leaf spot, plumeria rust, and sunburn. The response is different for each one, so the first job is to look closely at where the symptom appears, whether there is powder, whether the underside is involved, and whether […]
Fungal leaf spot is a practical symptom group rather than one single plumeria disease. Several fungi can produce defined tan, brown, gray, or dark lesions, sometimes with yellow halos, darker edges, tiny fruiting structures, or premature leaf drop. Most minor cases are managed with sanitation and faster leaf drying; rapidly spreading, wet-looking, soft, or foul-smelling […]