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Five drugs for cultivation of pollution-free vegetables
Non-polluted vegetables are those that have not been contaminated by harmful substances. In other words, these vegetables do not contain any toxic materials that are prohibited in commercial farming, and even the unavoidable harmful substances are kept within safe limits. When growing pollution-free vegetables, how should pesticides be used properly? According to the China Pesticide Network, here are some expert tips to help you manage pesticide use effectively.
First, choose the right pesticide. Before applying any chemical, it's essential to identify the specific pest or disease you're targeting. If multiple pests or diseases are present, a combination of pesticides may be necessary for effective control. This ensures that each treatment is tailored to the problem at hand.
Second, apply pesticides at the right time. Timing is crucial when it comes to pest control. For example, controlling tobacco budworms is most effective before the larvae reach the third instar stage, which is before they enter the pepper fruit. Similarly, the best time to target the Spodoptera litura (cabbage worm) is when adults gather before laying eggs, and larvae are in the third instar. Some pesticides break down quickly under high temperatures and sunlight, while others are more effective during nighttime when certain pests are active. Therefore, choosing the right time of application can significantly improve effectiveness.
Third, use pesticides wisely and in the correct amount. No matter the type of pesticide, it’s important to follow the manufacturer's instructions regarding concentration, dosage, and application intervals. Overusing or increasing the concentration unnecessarily can lead to plant damage, environmental pollution, and the development of pesticide-resistant pests.
Fourth, select the appropriate formulation and mixing method. Choose low-residue pesticides whenever possible. Different formulations have different advantages—granules, for instance, are safer for humans and animals and less harmful to the environment. Mixing pesticides correctly can prevent resistance and enhance their effectiveness. It also helps reduce the overall number of applications needed.
Fifth, try using non-toxic alternatives like natural substances or biological agents. For example, 20% baking soda can be used to treat powdery mildew and anthracnose on cucumbers. Rice vinegar can help control viral diseases in solanaceous crops and soft rot in Chinese cabbage. Solutions made from grass ash, waste tobacco leaves, or ramie leaves can effectively control aphids, mites, and other common pests.
By following these guidelines, farmers can ensure the safe and effective use of pesticides while maintaining the quality and safety of their vegetables. As bio-pesticide experts remind us, understanding the proper use of pesticides is key to maximizing their benefits and minimizing risks. Always read labels carefully and stay informed about the latest practices in sustainable agriculture.
The spotlights can be placed around the ceiling or above the furniture, in the wall or in the skirting line.