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Control Methods for White Root Rot in Hawthorn Cultivation
Hawthorn white root rot is an important root disease of hawthorn trees in old hawthorn-producing areas and is the main cause of death of old and weak trees. I. Symptoms After infection, the roots are entangled with white to grayish-white silk-like nets, which are the pathogen's rhizomorphs, and a grayish-white thin downy substance is produced at the root crown area on the ground. Leaves become smaller and leaf margins scorch, and some or all of the small branches and large branches die back.
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Pre-sowing Treatment Methods for Hawthorn Seeds
Ripe hawthorn seeds can only germinate after undergoing a series of physiological changes under suitable conditions. In addition, the hawthorn seed shell is thick and hard, with abundant gum, small pores, and is not easy to absorb water, swell, or crack. Therefore, its seeds must undergo proper treatment before sowing in order to
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Control methods for round spot root rot in hawthorn
Round spot root rot is one of the important causes of hawthorn tree death. 1. Symptoms: the fibrous roots first turn brown and die, and reddish-brown round lesions form around the base of the fibrous roots. In severe cases, the lesions merge, and the rot penetrates deep to the xylem, causing the entire root to turn black and die. 2. Transmission
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What water-saving methods are there for growing chestnuts on hillsides?
Mulching the tree basin with grass Mulching the tree basin with grass is an economical, convenient and labor-saving technical measure. It can make full use of the weeds growing on hillside terraces and the straw left after crop harvest, and it can both store water and preserve soil moisture and increase soil organic matter, making the soil more permeable to air and water.
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Chestnut Expansion Period Management Methods and Key Points
Timely fertilization In summer and autumn, apply fertilizer to the roots once a month, mainly nitrogen, phosphorus, and potassium fertilizers. For trees with a per-tree yield of 50 kg or more, apply 0.75-1 kg of urea, 0.5-0.7 kg of monopotassium phosphate each time, or apply 1-1.5 kg of nitrogen, phosphorus, and potassium compound fertilizer, broadcast after rain or
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A Detailed Guide to Two Methods of Grafting Chestnut Trees
The side graft method and the cut graft method are introduced as follows: The side graft method is a grafting method in which the trunk is not cut in autumn. This method can be used for both seedlings and tall grafting of large trees. The specific procedure is: 1. Opening the rootstock. At about 7 cm from the ground on the rootstock, on the straight side, make a light downward cut, about 3 cm long
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Control Methods for Chestnut Blight in Chestnut Cultivation
Chestnut blight, also known as chestnut dieback and canker, is a worldwide disease. Both seedlings and fruiting trees can be infected; in mild cases it reduces afforestation survival rates and yields, while in severe cases it causes afforestation failure or total crop loss of an entire chestnut grove. Xitaoyuan Forest Farm in Mingguang City
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Pest Control Methods in Chestnut Cultivation
1. Chestnut gall wasp The chestnut gall wasp, also called the chestnut gall wasp, has a dark brown head and abdomen in the adult stage, filiform brown antennae, and a swollen, jet-black thorax. It lays eggs in the buds from June to July, and the larvae grow and overwinter inside the buds. In spring, when the buds sprout and produce short shoots, the damaged branches or leaf stalks swell into
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Harvesting and Storage Methods for Chestnut Cultivation
Chestnuts have begun to hit the market, and farmers often encounter weight loss, sprouting and severe rotting and deterioration during transportation and storage due to improper management. The following introduces chestnut harvesting and storage techniques for fruit growers' reference. Timely harvesting. Harvest period: the earliest-maturing chestnut varieties generally mature in
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Control Methods and Key Technical Points for Lemon Gummosis
Lemon is rich in amino acids, vitamins, various trace elements and other nutrients essential to the human body, making it an excellent health fruit for human consumption. Lemon has a wide range of practical value, and demand is growing ever larger, with broad market prospects; at present, lemon is a fruit in short supply on the international market
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