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During the growing season, temperatures will rise significantly, and crops will enter their peak growth period. At this time, field-grown vegetables are more susceptible to pests, while greenhouse vegetables tend to experience premature aging. This is a crucial phase for vegetable development, and it's essential to implement proper protective measures to ensure healthy growth and high yields.
1. Field vegetables require focused pest management. The general approach at this stage is prevention. Agricultural control involves using disease-resistant varieties, seed disinfection, and proper field practices to manage pests and diseases. These strategies help suppress and eliminate the source of pathogens, reducing the likelihood of infestation.
Ecological control focuses on modifying the environment to limit the spread of pests and diseases. This includes actions like improving air circulation, managing moisture levels, cooling the area, or using techniques that suffocate pests.
Biological control uses natural predators or biological pesticides to manage pests in an eco-friendly way. This method helps maintain a balanced ecosystem without harming beneficial insects.
Physical control involves using mechanical methods such as traps, barriers, or light to repel or kill pests. This is a safe and effective way to manage infestations without chemical intervention.
Chemical control should be used with caution. While it may involve foliar sprays or root irrigation, only low-toxicity and low-residue pesticides should be applied to avoid environmental harm and protect human health.
2. Greenhouse vegetables also require careful management during this period. As they enter the late stage of growth, it's important to prevent early aging of plants. Proper watering and fertilization are key to promoting fruit maturity and ensuring timely harvesting. If organic fertilizer is limited, nutrients must be replenished promptly to avoid plant decline and reduced yield.
By implementing these strategies, farmers can effectively manage both field and greenhouse crops, ensuring a successful harvest and maintaining the quality of their produce.
Source: Xingtang County Agricultural Bureau, Hebei Province