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Integrated Control Methods and Technical Key Points for Walnut Branch Blight
Walnut branch blight is caused by fungal infection and mainly damages branches and trunks. It occurs in all regions, with a general diseased plant rate of 20-30%, and in severe cases the diseased plant rate reaches over 80%, causing massive branch dieback and directly affecting tree growth as well as walnut yield and quality. Therefore, timely control is necessary to curb the disease and promote tree...
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Applying supplemental fertilizer to walnut trees during the rainy season: better to apply less than more
Choose high-quality seedlings for planting. High-quality seedlings refer to robust grafted seedlings with pure varietal characteristics, well-healed graft unions, and no damage or pests and diseases. Choose plots with a soil layer more than 1 m thick, a pH of 7.5-8.0, a soil salt content below 0.25%, and a groundwater level below 2 m for planting. When planting, apply a 600-fold dilution of Xin Gaozhi Mo...
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Detailed Explanation of Control Methods for Walnut Bacterial Black Spot
Walnut bacterial black spot mainly damages walnut fruit, with a diseased fruit rate of 10%-40%, causing the fruit to turn black, rot, and drop early, and the walnut kernels to shrivel. In addition, it also damages leaves and tender shoots, with damage rates reaching 20%-40% in some plots. [Symptoms] On affected green young fruit, small brown oil-soaked spots initially appear on the rind...
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What are the benefits of planting walnut trees in a scattered layout?
Cold-protection measures for walnut trees can be taken after leaf fall (generally from mid-November to early December). 1. Burying the tree in soil: for 1-2 year old young trees that cannot safely overwinter in the open, bend the entire tree body to one side and cover it with soil; this method is the most effective and reliable measure to prevent branch dieback. 2. Mounding soil for cold protection...
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A Detailed Guide to Grafting and Pruning Techniques for Walnut Trees
Pruning Methods for Trees in Full Fruit Period Pruning of walnut trees refers to pruning in the broad sense, that is, both training and cutting. Trees of different ages have different pruning tasks. Pruning young trees is, on the basis of training the framework, to continue developing and maintaining a high-yielding tree form; pruning trees in the initial fruiting stage is to continue developing the scaffold branches at all levels well, make full use of auxiliary nurturing branches for early fruiting...
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What to Do If a Walnut Tree Does Not Bear Fruit? Causes and Solutions
Grafting Types Grafted seedlings are new-variety walnut seedlings grafted onto rootstock seedlings (seedling rootstock). There are mainly two types: tongue grafting and bud grafting. 1. Tongue grafting is divided into bark-tongue grafting and double tongue grafting; 2. Bud grafting is divided into young-bud walnut seedling grafting and square bud grafting. Square bud grafting is currently the most commonly used method in walnut seedling grafting...
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Scientific Planting Techniques for Walnut Seedlings and Walnut Trees
The yellow-spined slug moth mostly has 1 generation per year in the north, and 2 generations per year in the Yangtze River basin. After autumn, the mature larvae often spin silk and form hard cocoons on branch forks, twigs, leaf petioles, and even leaves to overwinter. The cocoon is oval, grayish-white, with several brown longitudinal bands, resembling a bird's egg. In early summer of the following year, the mature larvae pupate inside the cocoon, and after 1 month they emerge as adults and fly out,...
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How to prevent and control walnut bacterial blight? These methods are very practical
The pathogen of walnut bacterial blight generally overwinters in twigs or buds, and in the following spring exudes bacterial fluid that spreads via wind and rain, mainly damaging young fruit, leaves and tender twigs. Management methods: 1. Overwintering management. After leaf fall, apply Husu Jiangjun to the trunk and branches to hinder the pathogen from multiplying on the tree body, providing insulation, disinfection and frost protection. At the same time, spray Husu...
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Detailed Explanation of Key Techniques and Operating Steps for Walnut Square Bud Grafting
Walnut square bud grafting gives a high survival rate, is labor-saving and convenient to perform, and the technique is easy to master and promote; it is suitable both for planted young trees and for nursery seedling production. The square bud grafting technique is described below: 1. Grafting time. It can be carried out from late May to mid-July, but the best time is in June, during which...
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Walnut grown as a potted plant: it grows into a beautiful green plant in ten days, as lovely as a money tree, and it can even bear fruit
Walnuts are one of the nuts everyone loves to eat, because they are one of the four great dried nuts, rich in protein, fat, carbohydrates, calcium and so on. Everyone knows that eating walnuts regularly is very good for your health. When the holidays come,...
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