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Low-toxic pesticides can not be multi-spray
At present, many farmers mistakenly believe that high-toxicity pesticides are more effective, leading to improper usage. Instead of using precise measuring tools, they rely on intuition, often mixing three or four different pesticides together, thinking that this will improve pest control. However, this practice not only increases costs but also reduces effectiveness and can be harmful to both crops and the environment. Some farmers also misunderstand the safety of low-toxicity and low-residue pesticides, believing they can be applied multiple times without consequences. In reality, there is a lack of awareness regarding proper application timing, selection of appropriate products, and necessary safety intervals between sprays.
Pesticide use should strictly follow label instructions, including dosage, timing, and safety intervals. For example, when controlling Botrytis cinerea during flowering, it’s recommended to apply 1-2 sprays, using low-toxicity options like acetamiprid, spinetoram, or chlorfenapyr, with a 14-day interval before harvest. For citrus spider mites, spraying should not exceed two times per season, with at least 14 days between the last spray and harvest. When managing vegetable diamondback moths, Frigop is an effective choice with a short safety interval of just 3 days.
Additionally, some farmers assume that biological pesticides are always safe. This is not entirely true. For instance, abamectin, a biological insecticide used for controlling cotton spider mites, can only be applied up to two times per season, with a 21-day safety interval before harvest.
In summary, incorrect pesticide use poses a major risk to the safety of agricultural products. Farmers must be better educated on proper application methods, product selection, and safety guidelines to ensure both crop health and consumer safety. It's time to move away from guesswork and embrace informed, responsible farming practices.
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