Amphisarca Lists
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Strengthen the management of plum trees in early summer to ensure high quality and high yield of plums
Although plum is a kind of fruit tree with high yield and strong disease resistance, due to poor management in early summer, the phenomenon of big and small years is serious, the fruit is small, and the quality can not be guaranteed. The plum trees in the full fruit stage are mainly short fruit branches and flower-shaped fruit branches. at present, the plum fruit is in the fruit expansion stage, in order to increase the fruit and ensure the uniform size of the fruit.
2018-09-15 -
It is imperative to eradicate the gum disease of plum trees.
Plum gum disease is an important disease on the trunk of plum. When the disease is serious, it often causes dry and death, which has a great impact on the tree potential and yield. It often occurs in the warm and rainy season, especially in the south. Prevention and control measures 1. Strengthen cultivation and management. When planting plum tree, apply sufficient base fertilizer, after entering the bumper year, increase application.
2018-09-15 -
Control of insects in plum fruit
This insect is a small Lepidoptera pest of the family Lepidoptera, and it is the most serious pest that harms plum fruit, often with a damage rate of 80% to 90%. Teardrop-shaped pectin flowed from the wormhole, and the injured fruit could not continue to develop and gradually turned purplish red and fell off. The path of the killed fruit insect was covered with red insect dung, and the fellow-townsman called it "bean paste stuffing & quot...".
2018-09-15 -
Key points of management techniques for plum cultivation in greenhouse
In order to explore the technique of early fruit and early harvest of plums cultivated in greenhouse, an experimental study was carried out from 1997 to 2000. The winter shed was fastened in the second year, and the plum 1000kg was produced in the fourth greenhouse in 2000. The output value is more than 10,000 yuan, and the mature period is about 60 days earlier than that of open field cultivation. Through the experiment, we summed up the use of greenhouse to cultivate plums.
2018-09-15 -
Pre-harvest management of precocious honey pear
The cultivation area of precocious honey pear is expanding year by year, but due to the lack of scientific management means and methods, the premature senescence of pear trees appears, the result decreases year by year, the fruit quality is declining day by day, and the economic benefit is not good. Especially because last winter is warmer, and every early spring is hot, late spring appears complex and changeable such as late spring cold.
2018-09-15 -
How to prevent diseases and insect pests of plum trees in spring
1. Cultivate soil at the base of the trunk. In the overwintering generation of adults Eclosion unearthed (mid-late May), in the tree plate culture with a 10 cm thick mound, step firmly, so that the emergence of adults can not be unearthed. 2. Applying pesticide on the ground. Before the emergence of overwintering adults (after falling flowers), spray 75% phoxim EC 0.5 kg / mu, or 40.
2018-09-15 -
Common diseases and insect pests of plum trees and their control
After the first coring of the plum tree, the new secondary shoot is 20 cm long and the developmental branch is 60-80 cm long. If there are many branches, you can remove some of them; if the branches are not too dense, try to reduce them and control them more. Weeds in the orchard should be removed by mid-July. First, bacterial perforation, can be used more.
2018-09-15 -
Management of flowering and Fruit stage of Plum
Management of plum flowering and fruiting period: plum trees are easy to blossom and have high fruit setting rate, but the fruit is small. In order to improve fruit quality, in addition to strengthening soil and fertilizer management and adopting summer shears to control vegetative growth, flower and fruit thinning management should be carried out. Flower thinning is carried out in the flower bud expansion period (the end of March), and the bouquet-shaped fruit branches are sparse one by one; 20 to 30 after anthesis.
2018-09-15 -
Technical measures for three early cultivation of plums
Plum trees have developed rapidly in recent years. With the increase of plum area, standardized cultivation and management techniques have become the foundation of efficient plum orchards. 1. Planting technique 1.1 Variety configuration due to the limitation of climatic conditions, the varieties suitable for the growth of our city should be selected, such as Dazi plum, Yuhuang plum, Suileng plum and so on. Plum varieties are mostly self-blooming.
2018-09-15 -
Two instructions for pruning Li Shu
1. The root system characteristics of plum trees are shallow roots, most of them are absorbing roots, which are mostly distributed in the soil layer of 20~40cm. The distribution range of horizontal roots is usually 1.2 times larger than the crown diameter. The specific distribution range is closely related to the varieties and environmental conditions, such as in the deep sandy soil, the vertical root system can reach more than 6 meters. ...
2018-09-15 -
Correction of Nectarine physiological Disease-nitrogen deficiency
Soil nitrogen deficiency can make the leaves of the whole plant light green to yellow. Petioles and veins turn red. At this time, the growth of new shoots is hindered, the leaf area decreases, and the branches and leaves become relatively hard. If the nitrogen deficiency is too serious, the mesophyll between the large veins will appear red or reddish brown spots within 1-3 weeks. At a later stage, Xu.
2018-09-15 -
Cultivation techniques of Yellow Peach seedlings
Yellow peach seedling cultivation techniques 1, introduction: yellow peach seedlings are yellow peach seedlings, belong to grafted seedlings, grafted by peach seedlings. Yellow peach is native to China, and there are many varieties of yellow peach cultivated in China, so yellow peach seedlings can be divided into three categories: first, fresh yellow peach seedlings such as Fenghuang seedlings, Jinhuang seedlings, etc.
2018-09-15 -
Control of nectarine pest white starflower beetle
Adult body length 20~24 mm, body copper color, pronotum and elytra have irregular white spots more than 10. Adults nibble on ripe fruit, depriving it of commercial value. White starflower beetle occurs 1 generation per year, overwintering in soil and organic fertilizer as larvae, and easy to grow in chicken manure.
2018-09-15 -
Control of powdery mildew in peach trees
The prevention and control methods of peach powdery mildew are as follows: first, remove the diseased leaves after falling leaves and reduce the source of the disease. Second, spray chemical protection during the growing period: at the initial stage of the disease, spray 0.2 to 0.3 Baumetolite sulfur mixture, or 15% wettable powder trimethoprim 2000 to 3000 times, or 1500 to 2000 times methyl topiramate. Third, improve the ventilation and light transmission strip.
2018-09-15 -
Canopy nectarine management points through
To prevent peach from flower and fruit dropping in greenhouse, we should strengthen comprehensive management, ensure the nutrition supply, fruit setting rate and the close relationship between the development of young fruit and the supply of nutrients. First of all, we must strengthen the late management of the previous year, form good flower buds, and improve nutritional levels, such as autumn leaf protection.
2018-09-15 -
The reason why strawberry seedlings do not bear fruit
Strawberry only long stem, do not bear fruit, with the formation of flower buds have a more direct relationship, because strawberries only form flower buds, can blossom and bear fruit, if flower bud formation obstacles, it will lead to the phenomenon of no fruit. The factors affecting flower bud formation of strawberry were analyzed from internal factors and external factors.（1...
2018-09-15 -
How to control the age of plums
Plum trees have been cultivated in China for more than 3000 years. Huawei Peach and Plum is recorded in the Book of songs, "throw me peaches and repay plums." "Guanzi" has "five fertile land, its wood should be plum and plum." It shows that plum and plum trees have a long history of cultivation in China, and have good adaptability in both the south and the north. But for a long time, I.
2018-09-15 -
Opinions on Prevention and Control of Diseases and insect pests in Peach trees in early Spring
Peach leaf shrinking disease mainly harms leaves, but also young branches and young fruits. The disease usually occurs from April to May and occurs only once a year. When the fruit occurs, it turns red, the disease part is swollen, the villi fall off, and the surface is smooth. Varieties with high yield, high quality and disease resistance were selected for agricultural control. Enter the fruit period of the peach orchard, do a good job of soil and fertilizer.
2018-09-15 -
Prevention and treatment of phosphorus deficiency symptoms in peach trees
1. The effect of phosphorus on the growth and development of peach trees phosphorus has two effects on the growth and development of peach trees. On the one hand, phosphorus can enhance tree potential, maintain healthy growth, promote flower formation, early fruiting, promote fruit and seed ripening, increase sugar content and improve fruit quality. On the other hand, it can improve the ability of peach trees to the external environment.
2018-09-15 -
Efficient Management of Peach trees to promote High yield
Peach tree rot is also known as dry blight. After the peach tree is killed, the branches die and ulcer spots are formed in the big branches and trunks. If not treated in time, the whole plant will die soon. The main causes of the disease are: freezing injury and extensive management; improper fertilization and more autumn rain years, the dormancy of peach trees is delayed, which reduces the cold resistance of peach trees. With.
2018-09-15