Experts: There are no vegetables that do not fight pesticides
What kind of vegetables are the most insects and pesticides? Are the big tomatoes toxic? Can saline bubbles remove pesticide residues? The experts answered questions from the people's table. Soil has changed the recipe of insects has also changed Hearing agricultural experts, celery and beans are the most problematic, with serious diseases and pests. Therefore, the dosage of pesticides is also large, which really scared the reporter. In general, we believe that odorous vegetables are not insects, and that they are not favored by legumes. Therefore, pesticides are rarely used. It's not like it was. The use of a large amount of chemical fertilizers and pesticides has destroyed the ecological environment of the land, reduced the natural immunity of vegetables and crops, escalated pests and diseases, and increased the use of pesticides. The vicious cycle continues, and some of the avoidance plants that did not attract insects, such as celery and fennel, also began to get sick. Due to the high rate of celery serving, farmers are planted in large areas, so pest problems are more serious than fennel. Experts say that today's celery is the favorite of pests, not only that leaves are easy to fall ill, but also that they love rotting roots. Not using pesticides does not work. Southern seasonless beans should be bought with caution Speaking of beans, Professor Du Xiangge, a professor and doctoral supervisor at the China Agricultural University, reminded us that we still remember “Hainan poisonous kidney beans� In fact, the amount of pesticides used by the vegetable farmers did not exceed the standard, but because Hainan is a tropical climate, vegetables are season-free and can be harvested at any time. Unlike the North, it can fight drugs according to the obvious laws of vegetable growth. In the same vegetable garden, the ripening period of vegetables is not the same, some can be picked, can not fight drugs; some are still in the growth phase, need to fight drugs, and pesticides hit a large, mature vegetables will also be infected with pesticides . Professors from Nanjing Agricultural University and Wen Long pointed out that cowpeas are often planted in large areas. Once pests and diseases are encountered, the affected area is difficult to control and can only be used in large areas. Therefore, the southern season without picking vegetables beans should be carefully selected. There are no vegetables without pesticides Mr. Zhang, who lives in Beijing’s urban area, has opened a small plot in the suburbs and planted natural vegetables that do not use chemical fertilizers or sprinkle pesticides. However, when the vegetables started to show results, Mr. Zhang found that the pest was sieging tomatoes. The vegetable farmer told him that he must use pesticides, otherwise there would be insect-resistant vegetables and people could not eat it. Farmers are right, and agricultural experts also say that vegetables grown in natural environments are almost completely free of pesticides. Professor Du Xiangge said that the use of vegetables is regular, and they are generally used during the growing period of vegetables. It takes about 15 days to 21 days. When they arrive at the market after they are mature, they are only left in the residual state when they are bought by people.
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