Lambda-cyhalothrin 15g/l + Thiamethoxam 30g/l SC: Functions, Efficacy, and Target Crops/Pests**  

1. **Functions**:  

   - **Lambda-cyhalothrin** (pyrethroid insecticide): Rapid knockdown via contact and stomach action by disrupting insect nerve sodium channels.  

   - **Thiamethoxam** (neonicotinoid insecticide): Systemic and translaminar activity, disrupting insect CNS to inhibit feeding and reproduction.  

   - **Synergistic effect**: Combines immediate lethality and residual control, broadening the insecticidal spectrum and delaying resistance.  

2. **Target Crops**:  

   - **Cotton, rice, maize, vegetables (tomato, pepper), fruit trees (citrus, apple), and legumes**.  

3. **Control Pests**:  

   - **Sucking pests**: Aphids, planthoppers (brown/white-backed), leafhoppers, thrips, whiteflies, scales.  

   - **Chewing pests**: Lepidopteran larvae (bollworm, rice stem borer, diamondback moth), beetles (flea beetles, weevils).  

   - **Others**: Soil pests (grubs, mole crickets) and mites (suppression).  

4. **Efficacy Features**:  

   - **Fast-acting and long-lasting**: Lambda-cyhalothrin ensures quick kill, while Thiamethoxam provides extended protection.  

   - **Broad-spectrum**: Controls both aerial and soil-dwelling pests with ovicidal activity.  

   - **Resistance management**: Dual modes of action reduce the risk of pest resistance development.