DID YOU KNOW? Not every non-green leaf crop is diseased, and not all green leaf crops is healthy! 🌱 ======================================== Have you ever seen purple or reddish leaves and wondered whether the plant was suffering from a disease? To explore the science behind, we have to understand 3 important crop feeding processes:👇 1️⃣ Photosynthesis: is the process by which plants use sunlight, water and carbon dioxide to produce sugars for growth and energy, releasing oxygen as a by-product. 2️⃣Autotrophic: plants make their own food, usually through photosynthesis. In Rwanda, familiar examples include maize, beans, Irish potatoes, cassava and sweet potatoes. 3️⃣ Heterotrophic plants:, depend on other organisms for some or all of their nutrients. For example, Indian pipe obtains nutrients through associations with fungi rather than relying on normal photosynthesis. 🍠 Why are some plants not green? Some plants, including purple cabbage and purple basil, contain pigments called anthocyanins, which give their leaves purple or reddish colours. They can still contain chlorophyll and carry out photosynthesis. 🔎 Why does this matter in pest and disease management? For farmers, agronomists and agricultural extension officers, understanding a crop’s natural appearance is an important step in accurate diagnosis. Natural pigmentation: Purple or reddish leaves may be normal characteristics of a variety. Nutrient deficiencies: Some deficiencies like Nitrogen element can cause yellowing, purpling or other changes in leaf colour. Pests and diseases: Infestations and infections may cause spots, discoloration, wilting, lesions or abnormal growth. Environmental stress: Cold, drought, waterlogging and other conditions can also change leaf colour. The key is to avoid concluding that a plant is diseased simply because its leaves look unusual or assuming it is healthy because it retains its natural green colour. Observe the crop’s variety, growth stage, symptom patterns and field conditions before deciding on treatment. For farmers, protecting crop health begins with understanding the plant nature before reaching for a pesticide or other treatment. Accurate diagnosis supports more effective, economical and sustainable crop protection. My question to fellow agricultural professionals:⁉️🌱👇 How often do we mistake a plant’s natural characteristics for disease symptoms, or overlook early signs of a real problem? Let’s share knowledge and help farmers make informed decisions. #PlantHealth #Photosynthesis #IntegratedPestManagement #CropProduction #FarmWithZacharie