The use of pesticides during the rainy season is highly effective

Spraying pesticides during the rainy season can lead to reduced effectiveness as rainwater washes them away. To ensure better results, several strategies can be employed. First, choosing the right type of pesticide is crucial. Pesticides such as monocrotophos, methamidophos, phosphine, insecticidal crickets, Ye Ling Ling, carbendazim, chlorpromazine, thiophanate, triadimefon, tricyclazole, and fenazole alcohols are known for their strong absorption properties. These compounds are quickly taken up by plant stems and leaves and transported throughout the plant, making them less affected by rainfall. On the other hand, pesticides like 1605, methyl 1605, trichlorfon, anti-inhibition, quizphos, diflubenzuron, kaffrin, green copper lactone, and dexamethasone do not have systemic uptake but offer excellent surface penetration and resistance to erosion, making them ideal for use in wet conditions. For instance, Ye Ling Ling, when applied to crops, can achieve a systemic effect within two hours. Phosphate-based pesticides can rapidly enter plant tissues, with about 15% of the dose absorbed into the plant after application. Similarly, tricyclazole, when sprayed on crops, shows no significant loss of efficacy even if it rains an hour later. In addition, fast-acting pesticides like anti-influx, fast-killing, mixed anti-viper, methomyl, kwaywe, neovicarb, cotton boll, de-lingling, Xinguang 1, and chrysanthemum esters are recommended. These products work quickly to control pests and diseases, reducing the risk of being washed away by rain. When applying pesticides during the rainy season, it's best to spray during dry periods. If rain occurs within 24 hours of spraying, reapplication is necessary, and the concentration should be slightly reduced to avoid waste and environmental impact. Another effective method is using adjuvants or additives that improve the adhesion of pesticides to plant surfaces. Common adhesives include soy flour, polyvinyl alcohol, and hide glue, which help the pesticide stick better and last longer, enhancing overall effectiveness. (Qu Chengzhi)

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