What about the latest drug damage of passion fruit?

Passion fruit is a very common fruit, in our country's planting area is very large. When planting passion fruit, many fruit growers will spray some herbicides to remove weeds, but due to improper spraying and other reasons, passion fruit is extremely susceptible to herbicide damage, seriously affecting the yield and fruit quality. So what should I do if passion fruit is poisoned? The following small series will briefly introduce you, let's take a look together!

1. Symptoms of phytotoxicity

There are many reasons why passion fruit is damaged by medicine. For example, improper herbicide selection, contaminated application equipment, soil residues affecting crop growth and environmental reasons. After passion fruit is damaged by phytotoxicity, it will cause dwarf, deformity, yellow leaves and shrinkage of passion fruit plants. The growth rate of passion fruit plants will obviously decrease, or even stop growing, and in serious cases, it will lead to the death of passion fruit plants. However, different phytotoxic symptoms can occur depending on the type of herbicide.

2. Remedial measures for phytotoxicity

In the early stages of phytotoxicity, if it is caused by spraying on leaves or plants and found in time. At this time, because the solution has not completely penetrated into the inside of the plant, it can be washed with clean water, and then applied with an appropriate amount of acid to neutralize the herbicide and wash the toxic substances on the plant. If the phytotoxicity is light, then the phytotoxicity branches can be cut off in time to increase the application amount of quick-acting fertilizer. Apply more organic fertilizer, because organic matter can absorb herbicides, reduce the activity of herbicides, and provide sufficient nutrition for passion fruit.

If the herbicide used inhibits or interferes with the growth of passion fruit, then after the occurrence of phytotoxicity, appropriate growth regulators such as gibberellin should be sprayed. To slow the damage. If the symptoms of phytotoxicity are more serious, then the soil should be properly tilled, exposed to the sun, exposed to sunlight, and disinfected by sunlight. After ensuring that the poison disappears, do a good job of replanting.

3. Preventive measures

First of all, we need to choose the herbicide, the herbicide should not only ensure the weeding effect, but also pay attention to not affecting the growth of passion fruit, and will not produce residues. Then control the amount of food, not excessive, to avoid excessive concentration. It is not suitable to apply herbicides in environments where the temperature is too low, high humidity and strong wind. When spraying, try to spray on the ground. Then pay attention to the best is not to use glyphosate and other organophosphorus internal absorption herbicides, spraying after timely cleaning of spraying tools, to avoid spraying other pesticides when causing phytotoxicity.

The above is a simple introduction to how to do passion fruit poisoning. Today's introduction is here, this article is for reference only, I hope to help everyone oh!