What to Do About Herbicide Damage in Passion Fruit? Detailed Remedial Methods

Passion fruit is a very common fruit, and its planting area in our country is very large. When growing passion fruit, many fruit farmers spray some herbicides to clear weeds, but due to improper spraying and other reasons, passion fruit is extremely susceptible to herbicide damage, seriously affecting yield and fruit quality. So what should be done when passion fruit suffers herbicide damage? Below, the editor will give you a brief introduction. Let's take a look!

1. Symptoms of Herbicide Damage

There are many reasons that cause passion fruit to suffer herbicide damage. For example, improper selection of herbicides, contaminated spraying equipment, soil residues affecting crop growth, and various environmental reasons. After passion fruit suffers herbicide damage, the plants will show stunting, deformity, yellow leaves, and wrinkling. The growth rate of passion fruit plants will decline noticeably, or even stop growing, and in severe cases it will cause the passion fruit plants to die. However, the symptoms of herbicide damage will differ depending on the type of herbicide.

2. Remedial Measures for Herbicide Damage

In the early stage of herbicide damage, if the damage was caused by spraying leaves or plants and it is discovered in time, then at this time, because the spray solution has not yet fully penetrated into the interior of the plant, clean water can be used for flushing and irrigation, and then an appropriate amount of lime can be applied to neutralize the acidity of the herbicide and wash away the toxic substances on the plants. If the herbicide damage is mild, then the damaged branches can be pruned in time, and the application amount of quick-acting fertilizer can be increased. Apply more organic fertilizer, because organic matter can adsorb herbicides, reduce the activity of herbicides, and provide sufficient nutrients for passion fruit.

If the herbicide used is one that inhibits or interferes with the growth of passion fruit, then after herbicide damage occurs, some growth regulators should be sprayed appropriately, such as gibberellin, etc., to slow down the degree of herbicide damage. If the symptoms of herbicide damage are relatively severe, then the land should be plowed appropriately, the soil should be exposed to the sun for thorough sunning, and the soil should be disinfected through sunlight. After ensuring that the herbicide damage has disappeared, then do a good job of replanting.

3. Preventive Measures

First, we need to choose the right herbicide. The herbicide must not only ensure the weeding effect, but also be noted for not affecting the growth of passion fruit and not producing residues. Then control the amount used, do not use excessively, and avoid too high a concentration. Herbicides should not be applied in environments with excessively high or low temperatures, high humidity, and strong winds. When spraying, try to aim at the ground. Then note that it is best not to use systemic herbicides such as glyphosate and other organophosphorus herbicides. After spraying, clean the spraying equipment in time to avoid causing herbicide damage when spraying other pesticides.

The above is a brief introduction to what to do about herbicide damage in passion fruit. That is all for today's introduction. This article is for reference only, and I hope it can help everyone!