Biology
📚 Study Material Extracted from Biology PDF (SSC CHSL EXAM)
Here’s an easy-to-understand summary of the plant diseases section, organized with emojis for clarity and memorability:
🌱 PLANT DISEASES
🦠 Viral Diseases in Plants
| Disease | Plants Affected |
|---|---|
| 🌼 Bud Blight | Soy beans |
| 🍃 Curly Top | Beans, tomato, sugar beets, etc. |
| 🍂 Mosaic Leaf | Tomato, tobacco, corn, legume, potato, pea, sugar beet, cucumber, maize, cauliflower, sugarcane, bean, etc. |
| 💛 Yellowing of Leaf | Barley, sugar beet, potato, etc. |
| 🔴 Spotted Wilt | Tomato, capsicum, etc. |
| 🌿 Chlorosis Virus | Tomato, capsicum, etc. |
🧫 Bacterial Diseases in Plants
| Disease | Plants Affected |
|---|---|
| 🌱 Blights | Vegetable crops, fruit trees, etc. |
| 🥔 Bacterial Wilts | Corn, tobacco, potatoes, alfalfa, tomatoes, etc. |
| 🍏 Bacterial Speck | Fruits and leaves of different plants |
| 🌳 Cankers | Woody plants |
| 🍃 Leaf Spot | Cotton, beans, peas, etc. |
| 🥒 Soft Rots | Fleshy or succulent plant parts |
| 🌹 Fire Blight | Rosebushes, pome fruit trees, etc. |
🍄 Fungal Diseases in Plants
| Disease | Plants Affected |
|---|---|
| 🌳 Cankers | Largely woody plants |
| 🧅 Downy Mildew | Grains, onions, cucumbers, alfalfa, etc. |
| 🌾 Ergot | Rye, barley, wheat, and other grasses |
| 🌬️ Powdery Mildew | Grains, legumes |
| 🥔 Tuber Diseases | Potato, sweet potato, etc. |
| 🌾 Rusts | Wheat, barley, rye, oats, etc. |
| 🌱 Root Rots | All types of plants |
| 🥔 Scab | Wheat, barley, rye, potato, etc. |
| 🌽 Smuts | Oats, barley, corn, wheat, grasses, etc. |
| 🥔 Wilts | Potatoes, alfalfa, etc. |
| 🥕 Cavity Spot | Carrot |
| 🥕 Leaf Blight | Carrot |
| 🥦 Ring Spot | Brassicas |
🪱 Diseases by Nematodes in Plants
| Disease | Plants Affected |
|---|---|
| 🧑🦱 Hairy Root | Sugar beets, potatoes, soybeans, etc. |
| 🦶 Root Lesions | Different species of plants get affected |
| 🥜 Root-Knot | Tomatoes, peanuts, etc. |
💡 Tips for Remembering
- Viral diseases often cause leaf color changes or deformities (think: mosaic, curly, yellowing).
- Bacterial diseases usually lead to spots, wilting, or rotting.
- Fungal diseases feature mildews, rusts, rots, and blights.
- Nematode diseases affect roots, causing knots or lesions.
Use these emojis and tables to quickly recall which diseases affect which plants!
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