Whiteflies and aphids are soft-bodied insects causing 20–40% yield loss. Both suck plant sap, weaken plants, and transmit viruses.
Identification
Whiteflies: Tiny white triangular insects on leaf undersides; excrete sticky honeydew Aphids: Pear-shaped, green/black/red; appear in clusters; produce white waxy coating
Control Methods
| Method | Cost | Efficacy | Timing |
|---|---|---|---|
| Neem oil | 100–300 PKR | 70–80% | Every 7–10 days |
| Insecticidal soap | 100–200 PKR | 65–75% | 2x weekly, 2 weeks |
| Yellow sticky traps | 50–100 PKR/trap | 50–60% | Preventive; adults only |
| Predatory insects (ladybugs) | 300–800 PKR | 75–85% | Early season |
| Spinosad spray | 200–400 PKR | 80–90% | Every 7 days |
Prevention
- Yellow sticky traps: Detect early infestations
- Companion planting: Cilantro, dill, borage attract ladybugs
- Spray schedule: Weekly neem oil during warm season
- Resistant varieties: Some pepper/tomato cultivars show aphid resistance
Cost-Benefit (1-Hectare)
Untreated: 20–40% yield loss = 6–12 t at 30–40 PKR/kg = 180–480k PKR Prevention (neem sprays + traps): 3–5k PKR ROI: 3,600–16,000%
Related Guides
Monitor insect pressure with our crop calendar.
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