Identification of Phytotoxicity Symptoms in Pomegranate and Remedial Measures

Phytotoxicity is a phenomenon caused by improper use of pesticides during crop cultivation, and it seriously affects crop growth and yield. This is also true for pomegranate, and many farmers often encounter phytotoxicity during cultivation. So what symptoms appear when pomegranate suffers phytotoxicity? How should it be remedied? Let's take a look together.

1. Phytotoxicity symptoms

There are many symptoms after pomegranate suffers phytotoxicity, causing yellow spots, brown spots, net-like spots and necrotic spots on the leaves. In severe cases, leaf tip scorching appears, and it can also cause yellowing of stems and leaves. In severe cases, the whole plant turns yellow and withers, often caused by the use of herbicides. It can also cause abnormal growth of roots, leaves and fruits, affecting fruit quality and appearance. It also inhibits plant growth, leading to slow growth, reduced branching and decreased yield. During the flowering and fruiting period, it can also cause flower drop, fruit drop and leaf drop, with fruits becoming smaller, abnormal fruit surface and deteriorated quality.

2. Prevention methods

Strictly check the treatment and usage methods of pesticides. Deteriorated pesticides can easily cause phytotoxicity, so they must be carefully checked at the time of purchase. When preparing pesticides, the concentration must be strictly controlled to avoid phytotoxicity caused by excessively high concentration. At the same time, when mixing pesticides, pay attention to their mutual antagonism, so as to avoid pesticide failure or phytotoxicity. For example, emulsifiable concentrates easily produce phytotoxicity when mixed with certain aqueous pesticides. When applying the agent, spray evenly in one pass and avoid repeated spraying. Generally, evenly wetting the canopy until water drips from the leaves is sufficient. Root drenching and fumigation also require attention to dosage.

3. Remedial measures

For phytotoxicity caused by herbicides, methods such as plowing the soil, irrigating and soaking the field, and repeated rinsing can reduce the concentration and dose of pesticides in the soil. If it is directly sprayed on the leaves, it can be remedied by increasing the application of foliar fertilizer. For phytotoxicity that causes local pesticide spots, scorched leaf margins and plant yellowing, applying quick-acting chemical fertilizer can promote plant recovery and reduce phytotoxicity. For that caused by a single growth regulator, spraying gibberellin can alleviate the phytotoxicity. You can also spray antidotes or spread lime, plant ash or activated carbon to reduce the phytotoxicity.

The above is an introduction to pomegranate phytotoxicity symptoms and remedial measures. We hope it can help you. To learn more related knowledge, please stay tuned to us.