How to manage and use pesticides to prevent pests in autumn
2025-09-03 09:54:27
Citrus is highly valued for its rich vitamin content, making it a nutritious and popular fruit. However, citrus cultivation requires careful water management. In spring, regular watering is essential, while in summer, when the sun is intense and temperatures rise, the need for water increases significantly. It's important to water at the right time and in the right amount—overwatering or under-watering can lead to fruit drop. So, how should you manage citrus trees during the autumn season? Today, **China Pesticide Network** shares some effective techniques for autumn citrus care and disease prevention.
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1. **Pruning for Better Growth**: In early autumn, new shoots are crucial for next year’s fruit production. By mid-July, it's recommended to trim uniform shoots and pinch back the tips once they reach about 20 cm. This encourages healthy growth of autumn shoots. Any late shoots that appear after mid-September should be removed completely to prevent cold damage. Additionally, in mid-to-late September, spraying the trees can help redirect energy toward flower buds, reducing the risk of late-season shoot growth.
2. **Drought Protection**: During July and August, high temperatures and strong sunlight often lead to drought stress. To combat this, ensure proper irrigation and mulch the orchard floor. If the soil becomes too dry, consider flooding the orchard to maintain moisture. Also, tie up branches to prevent them from breaking due to wind. After typhoons, it's advised to spray a mixture of high-fat film and tree guards to protect the trees from bacterial infections and reduce the spread of pathogens.
3. **Pest Control Measures**:
- **Locuspid Moth**: When the shoots are about 3 mm long and the infestation rate exceeds 20%, apply a combination of effective pesticide and high-fat film.
- **Cockroaches and Black Thrips**: Monitor the orchard regularly and spray as needed. A 600-fold dilution of high-fat film can improve the effectiveness of the treatment and prevent bacterial spread.
- **Rust Mite Prevention**: It is recommended to use a solution of 50% Tolk WP diluted 2000 times, mixed with 800 times diluted high-fat film. Spray 2–3 times for optimal protection against rust mites.
By following these steps, citrus growers can ensure healthier trees, better fruit quality, and fewer pest problems during the autumn season. With proper care and timely interventions, your citrus orchard will thrive and prepare well for the next growing cycle.
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