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Pear scab control method

A technology for scab and pear trees, which is applied in the field of prevention and treatment of pear scab, and achieves the effects of preventing the disease, strengthening promotion and application value, and safe and effective control methods.

Inactive Publication Date: 2017-01-25
姜韫英
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Both conidia and ascospores can be used as the primary infection source of the pathogen, but ascospores are more infectious

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] The control method of the pear scab provided by the present embodiment 1 comprises.

[0015] Method 1. After the pear tree germinates, remove diseased shoots, diseased leaves, and diseased fruits, burn them or bury them deeply, eliminate the center of disease transmission, and prevent the re-infection of bacteria; during the growing season, clear the inside of the crown, trim long branches and over-dense branches, and keep the tree For pear orchards that are too densely planted, pruning should be done after the extended branches grow and intersect each other; pruning if the inner space of the canopy is too low or the tree is too high; through reasonable pruning, keep the tree body ventilated and light-transmitting, creating an Environmental conditions that are conducive to the spread of germs; after the leaves fall in autumn, clean the fallen leaves, fallen fruits, and weeds in the pear orchard, combined with winter pruning, cut off diseased and dead branches, and deeply...

Embodiment 2

[0019] The control method of the pear scab provided by the present embodiment 2 includes.

[0020] Method 1. After the pear tree germinates, remove the diseased shoots, diseased leaves, and diseased fruits, burn them or bury them deeply; clear the inside of the crown during the growing season, and trim long and over-dense branches; Prune after the last pruning; pruning if the inner space of the canopy is too low or the tree is too high; after the leaves fall in autumn, clean up the fallen leaves, fallen fruits, and weeds in the pear orchard, combine with winter pruning, cut off diseased and dead branches, and bury them deeply or burn them intensively.

[0021] Method 2. Spray 80% Bic wettable powder one week after the pear tree falls, and then apply it every 15 days for 2.5 months. Each tree sprays 3.5L of liquid medicine.

[0022] Method 3. After the pear trees are set, carry out bagging, and spray a high-efficiency fungicide once before bagging. The fungicide uses 40% Fuxing...

Embodiment 3

[0024] The control method of the pear scab that present embodiment 3 provides, comprises.

[0025] Method 1. After the pear tree germinates, remove the diseased shoots, diseased leaves, and diseased fruits, burn them or bury them deeply; clear the inside of the crown during the growing season, and trim long and over-dense branches; Prune after the last pruning; pruning if the inner space of the canopy is too low or the tree is too high; after the leaves fall in autumn, clean up the fallen leaves, fallen fruits, and weeds in the pear orchard, combine with winter pruning, cut off diseased and dead branches, and bury them deeply or burn them intensively.

[0026] Method 2. Spray 80% BBK wettable powder one week after the pear tree falls, and then spray it every 18 days for 3 months, spraying 3L of liquid medicine per tree.

[0027] Method 3. After the pear tree is set, carry out bagging, and spray a high-efficiency fungicide once before bagging. The fungicide uses 40% Fuxing EC 1...

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Abstract

Provided is a pear scab control method. The method comprises the steps that 1, diseased branches, diseased leaves and diseased fruits are removed after a pear tree sprouts and destroyed by fire or buried deeply; in the growing season, cleaning and thinning are conducted inside a tree crown, and long branches and dense branches are pruned; for a densely-planted pear orchard, pruning is conducted after extension branches grow to be mutually crossed; pruning is conducted on trees which have too small crown inner layer spacing or are too high; after leaves fall in autumn, fallen leaves, fallen fruits and weeds in the pear orchard are swept, and the diseased branches and withered branches are cut out by combining winter pruning and buried deeply or burned down in a centralized mode; 2, 80% of Bike wettable powder is sprayed one week after flowers of the pear trees fall, pesticide application is conducted once every 15 d to 18 d for 2-3 months, and 3-4 L of liquid pesticide is sprayed to each tree; 3, after fruit fixing is conducted on the pear trees, bagging is conducted, and high-efficiency fungicide is sprayed once before bagging is conducted. According to the pear scab control method, the control method is safe and effective, no chemical injury phenomenon exists, morbidity of pear scab can be effectively prevented, and the method has the wide application and popularization value.

Description

technical field [0001] The invention relates to the technical field of crops, in particular to a method for preventing and treating pear scab. Background technique [0002] Pear scab, also known as scab, is commonly known as black mold, fog, black bark, and buckwheat husk. It is one of the main diseases in pear planting areas. It can occur from the flowering stage of pear trees to the fruit ripening stage. Leaves, new shoots and fruits cause a large number of leaves to fall in the early stage, fruit deformities, and tree vigor are weak, which seriously affects the yield and quality of pears. [0003] The fungus of pear scab mainly survives the winter in the scales of axillary buds with conidia or mycelium, and can also survive the winter with mycelium in the diseased parts of branch tips, or with conidia, mycelium and immature ascus Shells overwinter on fallen leaves. In the spring of the second year, the disease is usually first at the base of new shoots, and the diseased...

Claims

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Application Information

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IPC IPC(8): A01G13/00A01G17/00
CPCA01G13/00A01G17/005
Inventor 姜韫英
Owner 姜韫英
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