What if there is a drug damage caused by pesticides in the process of watermelon growth? There are salvage measures.
In recent years, due to the increasing planting area of watermelon and more and more continuous cropping, the occurrence of diseases, pests and weeds is becoming more and more serious. in order to increase yield and reduce losses, chemical pesticides must be sprayed to prevent and control diseases, insect pests and weeds. Due to non-standard operation of pesticide application and unreasonable use of pesticides, drug damage occurs from time to time, resulting in watermelon deformity, hindrance in growth and development, and decrease in yield and quality. Seriously endangered the interests of the broad masses of melon farmers. In case of drug damage, prompt remedial measures should be taken to reduce the loss. The remedial measures are as follows:
1. Spraying growth regulators and foliar fertilizer in time. When there are symptoms of drug damage in the field, it is necessary to timely spray Bibou or brassin plus American star or alginic acid or amino acid multi-element foliar fertilizer to promote the growth and development of watermelon, and do not apply inhibitory growth regulators such as paclobutrazol, otherwise it will aggravate the drug damage.
2. rinse with water in time. If the pesticide is sprayed too much or the concentration is too high, the clear water can be sprayed continuously for 2-3 times in the damaged watermelon field to reduce the pesticide concentration and the pesticide residue on the leaves.
3. Do a good job in field management. Drug damage will lead to the loss of leaf function of watermelon, inhibition of photosynthesis, watermelon will show symptoms of lack of fertilizer, at this time should be timely supplement of available chemical fertilizer or foliar fertilizer. According to the characteristics of watermelon growing season, urea or ternary compound fertilizer should be applied in time to promote the rapid growth of watermelon and improve the ability of the plant to resist drug damage. Combined with topdressing and watering, middle ploughing and loosening soil can increase soil permeability and soil temperature, which can promote root development and enhance plant recovery ability.
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