Amphisarca Lists
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Prevention and Control of key Diseases and insect pests of Chinese Chestnut
First, select good varieties and prepare enough spikes to select good varieties. Dahongpao, Qingmaozao and Hongmaozao should be selected as the improved varieties for the transformation of chestnut orchard. These new varieties have been planted in our city with the characteristics of early fruiting, high quality, high yield, large fruit and strong stress resistance, so they are suitable for popularization and planting in the whole city. Spike collection and storage.
2018-09-13 -
Irrigation and soil moisture Conservation in Chestnut Orchard in Spring
Chinese chestnut is a deciduous tree, is one of the woody grain trees, long life, known as "iron crops". Chestnut is nutritious and delicious, which can be used as a substitute for grain; all parts of chestnut can be used as medicine, bark, branches and leaves, wood pith can also be extracted and glued, and leaves can also raise camphor silkworm and tussah silkworm. Chinese chestnut wood is hard, straight-textured, moisture-resistant and anticorrosive.
2018-09-13 -
Early High-yield techniques of Young Chestnut trees
1 Technical measures to promote the formation of female flowers 1) watering in early spring. Three weeks before sprouting is the morphological differentiation period of female flowers, which meets the water needs of trees and makes the fruiting branches stout and more buds, which lays a foundation for the formation of female flower buds. 2) foliar topdressing. When the basal leaf just unfolds and changes from yellow to green, it is sprayed with 1000 times liquid PP200....
2018-09-13 -
Symptoms of chestnut blight
Symptoms of chestnut blight: the pathogen produced discolored spots on the smooth bark, round or irregular; on the rough bark, the edge of the spot was not obvious, and then continued to expand, and the bark cracked longitudinally. In spring, many orange verrucous constellations can be seen on the damaged bark. After autumn, the constellation changes from orange to sauce red.
2018-09-13 -
Pollution-free cultivation techniques of Castanea mollissima
The larvae of the chestnut borer eat the chestnut fruit, which makes the insect feces in the seeds accumulate, which is unedible, and causes fruit drop, which has a great impact on the yield and quality. Its hosts include peach, plum, pear, sunflower, cornstalk and so on. Control method 1. Pick the fallen fruit, remove the insect fruit, and destroy it. 2. Chemical control. Master the first.
2018-09-13 -
There are four ways to save water in mountain chestnut
1. Deep ploughing and soil improvement, heavy application of organic fertilizer Due to frequent loss of management in mountain chestnut gardens, serious soil erosion and extremely low soil fertility, measures should be taken to improve soil fertility. Deep ploughing and soil improvement immediately after fruit picking in that year. Second, after picking fruit, topdressing outside the root after picking fruit, timely topdressing outside the root can ensure that the leaves fall off in time,...
2018-09-13 -
Water-saving technology of Chinese chestnut in mountainous area
Chestnut stem blight, also known as chestnut carcass blight, chestnut rot, chestnut blight, is one of the main diseases of chestnut. It occurred in all the main chestnut producing areas in China, and some of them suffered seriously, and the chestnut planted in Nanxiong also suffered seriously. The bark of the killed chestnut tree rotted and the tree became weak, which resulted in dead branches and dead trees. First, danger.
2018-09-13 -
How to control diseases and insect pests of Chinese chestnut
Chestnut in Anhui Province is mainly distributed in the mountainous areas of southeastern and western Anhui, and the Jianghuai hilly area has also developed on a large scale since the 1990s. The main chestnut counties (cities) are Jinzhai, Huoshan, Shucheng, Yuexi, Guangde, Ningguo, Taihu Lake and so on. There are more than 150 kinds of diseases and insect pests that harm Chinese chestnut in our province.
2018-09-13 -
Application of Boron Fertilizer to Chestnut
According to the investigation, there are 15% empty bracts in the normal growth areas, and some even reach more than 50%, which seriously affects the growth of chestnut. Boron deficiency was the main reason for the empty bract of chestnut. Boron fertilizer could obviously inhibit the formation of empty bract and increase yield of chestnut. In spring, chestnut sprout before the ring furrow or hole application...
2018-09-13 -
Closely planted chestnut shaping and pruning
Selection of superior seed scion: select excellent chestnut varieties with good local performance, and select strong fruiting branches with full growth and development, full apical buds and no diseases and insect pests, with a general length of 7-8 cm and 3-4 buds. The scion should be picked and picked now, or collected in advance and stored at low temperature after wax sealing. Grafting period: one.
2018-09-13 -
Busy flowering period good persimmon fruit
In order to produce uniform size and neat fruit shape. The fruit is plump. The persimmon fruits with good shape can be adjusted by artificial pollination, thinning flowers and fruits, releasing bees during flowering, ring peeling and other measures. Artificial pollination Jiro, rich and other varieties unisexual knot strength is low, through pollination, make it form a certain number of seeds,.
2018-09-13 -
Seven-word tips for preventing persimmon from falling flowers and fruits
The girdling of the trunk or main branch of the robust tree can not only promote flower bud differentiation and early fruiting, but also reduce physiological fruit drop and advance fruit ripening period. Girdling is generally carried out in the early flowering stage, completed in full bloom, with a width of 0.3-0.5 mm. After peeling, the strips are bound with plastic strips (11395, 70.00jue, 0.62%).
2018-09-13 -
A New Sweet Persimmon Variety "Golden Square Persimmon"
"Golden Square Persimmon" is a new variety of incomplete sweet persimmon, which is bred by using "Xin'an Niuxin persimmon" as female parent and "Zensi Maru" as male parent. The fruit is square with an average weight of 260 g and a maximum weight of 480 g. The face of the fruit is red with 4 symmetrical longitudinal grooves. The pericarp is thin, golden or orange-red.
2018-09-13 -
Management measures of planting and cultivating Chinese Chestnut in Spring
The chestnut weevil, also known as the chestnut weevil, lays eggs in August and hatches into larvae in September. The larvae eat the chestnut fruit, causing the damaged fruit to be full of insect dung, affecting eating and not leaving seeds. The damage to the fruit is generally 20% to 40%, and in severe cases it is up to 90%. The control method sprays the chestnut tree to kill the insect. Use 50% fenitrothion 800 times solution.
2018-09-13 -
Green manure pressing technology of Chinese chestnut in rainy season
Pressing green manure under chestnut trees can improve soil and prevent soil erosion. It has many advantages, such as low investment, low cost, high comprehensive utilization rate and so on. In this paper, the green manure technology of Chinese chestnut in rainy season is introduced as follows: 1. The source of chestnut green manure. First, artificial cultivation of green manure, commonly used Amorpha, mung beans and other leguminous plants; second, wild green manure.
2018-09-13 -
High-yield cultivation techniques of Organic Chestnut
To do a good job in winter pruning of chestnut trees in the full fruit period is an effective measure to prolong the full fruit period and prevent the occurrence of fruit in large and small years. 1. It is appropriate to prune Chinese chestnut in winter, from half a month after falling leaves to half a month before sprouting in spring next year, that is, from mid-December to early February of the following year, but encounter ice.
2018-09-13 -
How to manage persimmon orchards in summer
The summer management of persimmon orchard should pay attention to the following points: first, sparse fruit astringent persimmon from mid-May to early June, sweet persimmon from early June to early July, after the end of physiological fruit drop, according to the proportion of 20: 25 leaves with a fruit, choose strong young fruit free of diseases and insect pests, to remove deformed fruit, disease and insect fruit, branch length less than 15.
2018-09-13 -
Key points of fertilization techniques in Persimmon Orchard
The main cultivation and management techniques are: 1. Implement "three reforms" 1.1 to transform the garden: most of the terraced fields in the adult mountain persimmon orchards have no stem in front and no ditch behind, the Mesa is low before and after high, the soil erosion is serious, and the root system is exposed. Transform the garden, that is, the terrace of the persimmon garden has a ridge in front and a ditch in the back, and the front ridge is 10 ~ 15% high.
2018-09-13 -
Persimmons spring branches clever winter shear
A few years come, fu ping persimmon falls (do not control become cake shape) most by day, korea businessman buys export with price of every kilogram dozen yuan. However, several large supermarkets in Xi'an City have long sold Guangxi persimmon cakes, with a retail price of less than 10 yuan per (0.5 kg). This means...
2018-09-13 -
Prevention and control of persimmon mad disease
Symptoms: the diseased tree sprouted late in spring, grew slowly, the veins of the leaves were black, the xylem of the branches became dark brown, and the phloem tissue was seriously expanded, resulting in clumps of branches or upright overgrowth or withered branches and scorched shoots, with less fruit, and the fruit softened early and fell off. Serious sterility or death of the whole plant. Prevention and control methods: (1) choose.
2018-09-13