🪲 Pesticides & Pest Management Guide
Introduction to Pesticide Management
Pest and disease management is crucial for maintaining crop health and productivity. This guide provides information about common pesticides, their usage, dosages, and safety precautions. Always follow local regulations and use pesticides responsibly.
⚠️ Safety First: Read all pesticide labels carefully. Wear protective equipment when handling pesticides. Never exceed recommended dosages. Store pesticides in a cool, dry place away from children and animals.
Common Insecticides
Neem Oil (Organic)
- Type: Biopesticide
- Active Ingredient: Azadirachtin
- Target Pests: Aphids, mites, caterpillars, whiteflies
- Dosage: 3% neem oil at 5 ml/liter water
- Crops: Safe for all crops including vegetables
- Re-entry Period: No waiting period
- Advantages: Organic, safe, biodegradable, no residue
Spinosad
- Type: Biological insecticide
- Target Pests: Caterpillars, leaf miners, fruit flies
- Dosage: 45% SC at 0.5 ml/liter water
- Crops: Cotton, vegetables, fruits
- Re-entry Period: 1 day
- Precaution: Harmful to aquatic organisms
Quinalphos
- Type: Organophosphate
- Target Pests: Stem borers, leaf folders, plant hoppers
- Dosage: 25% EC at 1 ml/liter water
- Crops: Rice, wheat, cotton, corn
- Re-entry Period: 2 days for rice paddies
- Caution: Toxic - use with protective equipment
Chlorpyrifos
- Type: Organophosphate
- Target Pests: Stem borers, plant hoppers, leaf folders
- Dosage: 20% EC at 2 ml/liter water
- Crops: Rice, cotton, cereals
- Re-entry Period: 2 days
- Environmental Impact: May harm beneficial insects
Imidacloprid
- Type: Neonicotinoid
- Target Pests: Aphids, jassids, whiteflies, plant hoppers
- Dosage: 17.8% SL at 1 ml/10 liters water
- Crops: Cotton, vegetables, fruits, cereals
- Re-entry Period: 1 day
- Note: Controversial regarding bee health
Cypermethrin
- Type: Pyrethroid
- Target Pests: Armyworms, caterpillars, leaf folders
- Dosage: 10% EC at 1.5 ml/liter water
- Crops: Cotton, vegetables, cereals, pulses
- Re-entry Period: 1 day
- Persistence: Longer residue period
Carbaryl
- Type: Carbamate
- Target Pests: General insecticide for various pests
- Dosage: 50% WP at 2-3 gm/liter water
- Crops: Vegetables, fruits, cotton
- Re-entry Period: 1 day for most crops
- Note: Kills beneficial insects
Common Fungicides
Copper Fungicide (Copper Oxychloride)
- Type: Contact fungicide
- Target Diseases: Leaf spots, blight, blasts
- Dosage: 50% WP at 2 gm/liter water
- Crops: Safe for all crops
- Application: Preventive - spray before disease onset
- Re-entry: No waiting period
Mancozeb
- Type: Contact fungicide
- Target Diseases: Various fungal diseases
- Dosage: 75% WP at 2.5 gm/liter water
- Crops: Vegetables, cotton, cereals
- Note: Avoid use near harvest
Tricyclazole
- Type: Systemic fungicide
- Target Diseases: Rice blast
- Dosage: 75% WP at 0.6 gm/liter water
- Crops: Primarily rice
- Timing: Apply at flag leaf stage for rice blast
Propiconazole
- Type: Systemic fungicide
- Target Diseases: Rusts, powdery mildew, leaf spots
- Dosage: 25% EC at 1 ml/liter water
- Crops: Wheat, cotton, pulses, vegetables
- Re-entry Period: 2 days
Hexaconazole
- Type: Systemic fungicide
- Target Diseases: Sheath blight, rusts, blights
- Dosage: 5% EC at 1 ml/liter water
- Crops: Rice, wheat, vegetables
- Re-entry Period: 2 days
Sulfur (Organic)
- Type: Contact fungicide
- Target Diseases: Powdery mildew, rust
- Dosage: 80% WP at 2.5 gm/liter water
- Crops: Grapes, vegetables, fruits
- Organic: Approved for organic farming
- Note: Don't use with oil sprays
Carbendazim
- Type: Systemic fungicide
- Target Diseases: Fungal infections, seed-borne diseases
- Dosage: 50% WP at 1 gm/liter water
- Crops: Cereals, vegetables, cotton
- Note: Restricted in some countries
Herbicides (Weed Killers)
2,4-D (2,4-Dichlorophenoxyacetic acid)
- Type: Selective herbicide
- Target: Broadleaf weeds
- Dosage: 38% SL at 0.75 ml/liter water
- Crops: Wheat, corn, rice, cereals
- Timing: Apply at 4-6 leaf stage
- Re-entry: 1-2 days
Atrazine
- Type: Pre-emergence herbicide
- Target: Broad-spectrum weed control
- Dosage: 50% WP at 2 kg/hectare
- Crops: Corn, sugarcane
- Application: Before weed germination
Paraquat
- Type: Non-selective herbicide
- Target: All green plants
- Dosage: 20% SL at 1.5 ml/liter water
- Use: Desiccant before harvest
- Caution: Highly toxic - restricted in many countries
Glyphosate
- Type: Non-selective, systemic herbicide
- Target: All green plants
- Dosage: 41% SL at 1.5 ml/liter water
- Use: Field cleanup, non-cropped areas
- Organic Status: Not approved for organic farming
Pendimethalin
- Type: Pre-emergence herbicide
- Target: Broadleaf and grass weeds
- Dosage: 30% EC at 1 kg/hectare
- Crops: Wheat, gram, corn
- Timing: Before sowing or immediately after
Crop-Specific Pesticide Recommendations
🌾 Rice Crop
| Pest/Disease | Pesticide | Dosage | Timing |
|---|---|---|---|
| Stem Borer | Phosphamidon 85% SL | 1 ml/liter | At panicle initiation |
| Blast | Tricyclazole 75% WP | 0.6 gm/liter | Flag leaf stage |
| Sheath Blight | Propiconazole 25% EC | 1 ml/liter | Boot to milk stage |
| Plant Hopper | Thiamethoxam 25% WG | 0.4 gm/liter | At appearance |
🌽 Corn Crop
| Pest/Disease | Pesticide | Dosage | Timing |
|---|---|---|---|
| Fall Armyworm | Spinosad 45% SC | 0.5 ml/liter | As soon as spotted |
| Stem Borer | Carbaryl 50% WP | 2.5 gm/liter | V6-V8 stage |
| Leaf Blight | Mancozeb 75% WP | 2.5 gm/liter | At first symptom |
🌾 Wheat Crop
| Pest/Disease | Pesticide | Dosage | Timing |
|---|---|---|---|
| Rust (Leaf/Stem) | Propiconazole 25% EC | 1 ml/liter | At first pustule |
| Powdery Mildew | Sulfur 80% WP | 2.5 gm/liter | At early stage |
| Armyworm | Cypermethrin 10% EC | 1 ml/liter | When caterpillars appear |
🌱 Cotton Crop
| Pest/Disease | Pesticide | Dosage | Timing |
|---|---|---|---|
| American Bollworm | Spinosad 45% SC | 0.5 ml/liter | Weekly monitoring |
| Jassids | Thiamethoxam 25% WG | 0.4 gm/liter | At threshold level |
| Spider Mites | Dicofol 18.5% EC | 2 ml/liter | When infestation noticed |
| Leaf Curl | Insecticide for vectors | As applicable | Vector management |
Safety & Best Practices
Personal Protective Equipment (PPE)
- Wear protective clothing (long sleeves, long pants)
- Use face masks or respirators when spraying
- Wear gloves (preferably nitrile or rubber)
- Use closed shoes (no sandals)
- Wear eye protection (goggles)
- Use head covering (cap or hat)
Before Application
- Read pesticide label completely
- Check expiry date
- Prepare spray tank in well-ventilated area
- Use clean water for dilution
- Mix pesticide with water according to instructions
- Inform family members and workers about spraying
During Application
- Do not smoke, eat, or drink while handling pesticides
- Avoid direct contact with pesticide solution
- Spray when wind is calm (avoid drift)
- Keep bystanders away from spraying area
- Don't spray towards water sources
- Check nozzles for proper operation
After Application
- Wash hands and face thoroughly with soap and water
- Bathe and change clothes immediately
- Don't enter sprayed field for recommended period
- Clean spray equipment properly
- Dispose of empty containers safely (don't reuse)
- Store unused pesticides in original containers only
Storage & Disposal
- Store in cool, dry, well-ventilated place
- Keep away from food, feeds, and seeds
- Out of reach of children and animals
- Use original containers only
- Don't store near water sources
- Dispose empty containers safely (don't burn)
Integrated Pest Management (IPM)
- Prevention: Use disease-resistant varieties, proper spacing, sanitation
- Monitoring: Regular field scouting, pheromone traps, threshold levels
- Cultural Control: Crop rotation, timely sowing, water management
- Mechanical Control: Hand-picking, traps, barriers
- Biological Control: Use of natural enemies, parasitoids
- Chemical Control: Use pesticides only when threshold exceeded
Remember: Pesticides should be the last resort. Always follow label instructions, maintain safety protocols, and consider IPM approaches for sustainable and safe agriculture.