What to Do When Grape Leaves Show Herbicide Damage? Detailed Remedial Methods

Grape is a common fruit in daily life, not only diverse in varieties but also good in taste, very popular among people, and grown in many regions, but during cultivation, various types of herbicide damage can occur, so what should be done about herbicide damage on grape leaves?

1. Alleviating herbicide damage

The herbicide damage on grapes mainly shows on the leaves, and sometimes also occurs on the fruit and young shoots; the specific symptoms of herbicide damage vary significantly depending on the variety. After herbicide damage occurs, the affected plants should be sprayed with clean water as soon as possible to reduce the occurrence of herbicide damage by lowering the chemical concentration. If it is a pesticide, herbicide, etc. sprayed on the ground, irrigation should be carried out promptly to wash the soil, rinsing away the residual pesticide in the soil; in this way, grape herbicide damage can be greatly alleviated. Or spraying propionyl brassinolide aqueous solution or Haijingling can also alleviate herbicide damage.

2. Rational use of chemicals

When using pesticides, try to choose safe pesticides, and be sure to prepare the spraying concentration according to the instructions; do not arbitrarily increase the concentration, avoid using chemicals when the temperature is too high, and do not use them immediately when there is dew or after rain. If it is a wettable powder pesticide, it must be diluted evenly; when using it together with foliar fertilizer, first fully dissolve the foliar fertilizer before adding it to the liquid pesticide, and stir it thoroughly and evenly before spraying.

3. Strengthening management

During grape cultivation, management should be strengthened and strong vines should be cultivated to improve the grape's tolerance to chemicals; after the herbicide damage is alleviated, fertilizer and water should be increased to promote the plant's recovery as quickly as possible. For small-area herbicide damage that has already occurred, the damaged leaves or fruit can be removed to avoid giving pathogens an opportunity; if it is large-area herbicide damage, while alleviating the herbicide damage, pest and disease control measures should also be taken. This is because after herbicide damage occurs on grapes, the plant's vigor is weakened and its resistance to diseases is relatively weak; if pests and diseases occur at this time, it can very easily lead to plant death.