Inquiries: Experts Hello, when planting hot peppers in greenhouses using 2,4D butyl ester herbicides, due to excessive concentrations, peppers are phytotoxic. Now nearly 2/3 of the plants have been seriously removed from the plant. Will the planting of tomato and other solanaceous vegetables be affected? Is it OK to grow cucumbers and other melons?
Answer: 2,4 D butyl ester is a phenoxyethyl hormone hormone-selective herbicide, which is mainly used for post-emergence shoot treatment of crops. After the herbicide is sprayed on the foliage of the plant, it enters the plant and is transmitted to the whole plant. The growth point stops growing at the top of the plant. The young leaves cannot be stretched and the photosynthesis is inhibited; the plant division is promoted in the lower part of the plant and the root tip enlarges. Loss of absorption capacity, impeded transport of nutrients, distortion of stems, deformity, and death of plants. 2,4 D butyl ester is suitable for control of broadleaf weeds such as gray strips, leeks, bitter herbs, and thorny vegetables in crops of monocotyledons such as wheat, barley, corn and millet, and is ineffective against grass weeds.
Due to the strong volatility of the drug, the alkali is decomposed and the residual period is short, so it does not affect the cultivation of the crop. However, it is difficult to clean in the sprayer, that is, using alkali, washing powder and other cleaning, it should not be washed, even if there is a very small amount of residual, and then use the sprayer spray other pesticides on pepper and other broad-leaved vegetables, will also Produce phytotoxicity.
Farmers can continue planting tomato and other solanaceous vegetables on the ground, as well as cucumbers and other melons. Farmers can rationally arrange the types and gargle of vegetables to be grown in order to reduce the damage caused by phytotoxicity according to market demand.
In addition, it is also recommended that the majority of farmers, in general, do not advocate the use of herbicides during the growth of greenhouse vegetables. If it is to be used, we can use glyphosate, a deadly herbicide, to directly spray all kinds of weeds after a meal has been pulled. After one week, we can perform soil preparation, ridging, filming, transplanting, and planting. Take a look at vegetables. In this way, weeds can be prevented without causing any damage to the vegetables. For the 1/3 of the chillies that the farmer mentioned were not removed, the affected 1/3 of the peppers could be sprayed with fresh water for leaf washing, or sprayed with plant growth regulators such as Tiida 2116 or brassinolide, all of which could alleviate and alleviate the problem. The effect of phytotoxicity.
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