What antifreeze agents are there for peach trees? Introduction to common types

Spray with lime sulfur mixture, or mix and dilute machine oil emulsion with dichlorvos and dimethoate emulsifiable concentrate and spray. Spray paraffin 5-fold emulsion, or 150-fold carboxymethyl cellulose solution and other protective antifreeze agents. You can also use Kuaihuolin antifreeze agent diluted 500-800 times and spray evenly on the plants.

1. Spray with lime sulfur mixture, or mix and dilute machine oil emulsion with dichlorvos and dimethoate emulsifiable concentrate and spray, so that the agent evenly adheres to the leaves, preventing freezing and also controlling pests.

2. Before low-temperature freezing damage occurs, spray paraffin 5-fold emulsion, or 150-fold carboxymethyl cellulose solution and other protective antifreeze agents 2~3 times, which can seal the stomata of branches, reduce water loss, prevent shoot shriveling, delay the flowering period of fruit trees, increase the sap concentration of the tree body, and thereby enhance cold resistance.

How to protect peach trees from freezing

Peach trees are prone to shoot shriveling, excessive vigorous growth, and gummosis, affecting fruit tree growth and the fruiting rate of the coming year. Ring-brushing Cuihuawang No. 3 can completely eradicate gummosis, control excessive vigorous shoot growth, and increase the fruit-setting rate. The main measures are wrapping the trunk and main branch forks of young trees and mounding soil at the root crown; for mature trees, whitewashing the trunk and mounding soil at the root crown, which can prevent sunscald, freezing damage, and pests and diseases. Trunk wrapping and root crown mounding. Mostly used for young trees. Locally from early to mid-October to the end of October. Materials can be rice straw, waste agricultural film, straw rope, etc., to wrap the trunk and large branch forks tightly, with the focus on the south side of the trunk and the large branch forks. After wrapping, mound a small soil pile at the base of the trunk to protect the root crown and reinforce the wrapping. Remove the cold protection materials in mid-to-late April of the coming year. Trunk whitewashing. Mostly used for mature fruit trees. Trunk whitewashing can slow the drastic temperature changes in the tree body caused by direct sunlight, prevent peach bark from freezing and the separation of the xylem, and at the same time can kill some insect eggs and pathogens, and can also prevent livestock from gnawing the trunk. The method is to use a brush dipped in whitewash agent and apply it evenly along the trunk and main branch forks from top to bottom and from inside to outside in sequence. Whitewash formula: quicklime 10 kg plus water 60 kg, plus an appropriate amount of lime sulfur mixture and a small amount of bean powder or soybean oil. Clearing the orchard: no matter what kind of orchard, a thorough cleaning should be carried out after winter begins, burning dead branches, fallen leaves, and weeds or composting them into fertilizer, and in combination with winter pruning, remove dead buds, mummified fruit, paper bags, etc., to thoroughly eliminate overwintering pest and disease habitats. Bark scraping: best carried out in early winter. For bark scraping, master the principle that young trees and weak trees are scraped lightly, only scraping off dead and curled bark; large trees and vigorous trees are scraped heavily, scraping until the bark layer slightly reveals yellow-green, then apply Hushu Jiangjun emulsion to the diseased spots, so that the diseased spots quickly dry up and fall off, eliminating the source of pathogens. Heat preservation and antifreeze: in winter, attention should be paid to reducing freezing damage and eliminating overwintering pests and diseases under the bark and in cracks. After clearing the orchard, spray Hushu Jiangjun over the whole orchard to disinfect and sterilize, preserve heat and prevent freezing, and protect the tree body through the winter safely. Chemical control: for peach trees, it is best to spray targeted agents plus Xinguozhimu twice after pruning and before and after budding for control.