CN104920125A - Preventing and treating method for powdery mildew of lagerstroemia indica trees - Google Patents

Abstract

The present invention discloses a preventing and treating method for powdery mildew of lagerstroemia indica trees, comprising the following steps of: collecting fresh Chinese coriaria leaves; adding 6-10 parts of quick lime and 100-150 parts of tap water into a water channel, then adding 15-20 parts of the Chinese coriaria leaves into the water channel after 6-10 hours, and soaking the Chinese coriaria leaves in the lime water for 8-12 hours; filtering the lime water in the water channel and removing impurities; and adding the solution obtained through filtering into a sprayer, and spraying lagerstroemia indica trees with the solution once every 15-20 days. The solution is capable of healing powdery mildew of lagerstroemia indica trees, and the effective rate is 95%; in addition, the solution is free of toxic to humans, free of pollution to the environment, low in cost, abundant in raw material, and particularly suitable for rural areas.

Description

A kind of method of preventing and treating lagerstroemia indica tree powdery mildew

Technical field

The present invention relates to the prevention and controls of lagerstroemia indica tree damage by disease and insect, especially a kind of method of preventing and treating lagerstroemia indica tree powdery mildew.

Background technology

Crape myrtle Pterostyrax machaka or dungarunga, tree performance is graceful, trunk smooth pieces, and pattern is gorgeous; Just when in autumn in summer few adolescence when blooming, the florescence is long, therefore has the title of " crape myrtle "; The many distortions of limb, sprig is very thin, tool 4 rib, slightly become aliform, leaf alternate or sometimes to life, papery, oval, wealthy square circle or obovate, long 2.5-7 centimetre, wide 1.5-4 centimetre, the short point in top or obtuse, sometimes nick, the wealthy wedge shape of base portion or subcircular, without hair or below along in arteries and veins have micro-pubescence, lateral vein 3-7 couple, scun is not obvious; Stockless or petiole are very short.Pattern rhodo, bright red, wind rose, pale red or purple, white, diameter 3-4 centimetre, the raw panicle in top of normal composition 7-20 centimetre; The long 3-15 millimeter of bennet, axis and bennet are all by pubescence; The long 7-10 millimeter of calyx, outside is level and smooth without rib, but time fresh, calyx tube has the short rib of micro-protuberance, two sides without hair, sliver 6, triangle, uprightly, without appendage; Petal 6, shrinkage, long 12-20 millimeter, the long pawl of tool; Stamen 36-42,6 pieces, outside be born on calyx, more much longer than remaining; Ovary 3-6 room, without hair.

But summer lagerstroemia indica tree easy powdery mildew, powdery mildew main harm blade, and tender leaf is easier than Lao Ye is infected; This disease also endangers branch, the tender tip, bud and bud., blade there is white little amyloid plaque in their early stage, after expanding, rounded or irregular shape is faded patch, and after flower is infected, surface-coated white powder layer, flower fringe deformity, loses ornamental value.Plant by powdery mildew infringement can become short and small, tender leaf distortion, deformity, withered, and blade is not carried out, diminish, and branch deformity etc., time serious, whole plant all can be dead.

At present, the method for preventing and treating lagerstroemia indica tree powdery mildew is mainly sprayed insecticide, and after spilling agricultural chemicals, smell is heavier, also has certain pollution to environment.

Summary of the invention

For the deficiencies in the prior art part, the present invention aims to provide a kind of method of preventing and treating lagerstroemia indica tree powdery mildew, adopts green method control, can prevent and treat lagerstroemia indica tree powdery mildew, not pollute simultaneously to environment.

For reaching above-mentioned purpose, the technical solution used in the present invention: a kind of method of preventing and treating lagerstroemia indica tree powdery mildew, comprises following operating procedure:

1) fresh Coriaria sinica leaf is gathered;

2) in tank, add 6-10 parts of quicklimes and 100-150 parts of running water, after 6-10 hours, in this tank, add 15-20 parts of Coriaria sinica leaves again, Coriaria sinica leaf is soaked 8-12 hours in limewash;

3) limewash of above-mentioned tank is filtered, remove impurity;

4) loading sprayer by filtering the solution obtained, carrying out sprinkling lagerstroemia indica tree, spraying once every 15-20 days.

Above-mentioned solution can cure lagerstroemia indica tree powdery mildew, and efficient 95%, and this solution is nontoxic to people, and also free from environmental pollution, cost is low, and raw material is many, is particularly suitable for rural area.

Coriaria sinica tree is generally shrub, leaf alternate, subcircular, long 6-14 centimetre, wide 5-14 centimetre, and the anxious point of tip or suddenly point, base portion innermost being shape, two sides is without hair.Flower is open prior to leaf, and 4-10 clusters on Yu Laozhi; Bractlet 2, wealthy avette, be about 2.5 millimeters; Flower rose, is about 1.5-1.8 centimetre; Bennet is thin, is about 6-15 millimeter.Pod bar shaped, flat, long 5-14 centimetre, wide about 1.3-1.5 centimetre, has narrow wing along ventral suture; Seed 2-8 grain, flat, subcircular, is about 4 millimeters.Be distributed in North China, East China, southwest, Central-South, Gansu, Shaanxi, Liaoning.Be born in by hillside, small stream, in shrubbery, or cultivate in flower garden.Bark, timber, root are used as medicine, and have blood-activating and qi-promoting, swelling and pain relieving, an effect of the stasis of blood of dispelling removing toxic substances; Bark, bennet are boil key medicine.

Embodiment

Source, Jiu Zhou town, Huangping County along ecological forest farm, monsoon climatic region, genus subtropics, Huangping County.Make a clear distinction between the four seasons, have a moderate climate, rainfall is abundant.Average annual temperature 15.1 DEG C, 7 the hottest monthly mean temperatures are 24.7 DEG C; Average annual rainfall 1307.9 millimeters, sunshine, number 1104.7 hours, was suitable for the cultivation of various ornamental trees and shrubs.

Embodiment 1:

1) fresh Coriaria sinica leaf double centner is gathered;

2) in tank, add 50 kilogram of raw lime and 500 kilograms of running water, in this tank, add double centner Coriaria sinica leaf again after 6 hours, then stir, make mulberry leaves submerged, Coriaria sinica leaf soaks 9 hours in limewash;

3) limewash of above-mentioned tank is filtered, remove impurity;

4) will filter the solution that obtains and load sprayer, and carry out sprinklings lagerstroemia indica tree, sprayed once every 15 days, whole summer not there is powdery mildew in lagerstroemia indica tree, and spring and autumn can monthly spray once, prevent to occur powdery mildew.

Embodiment 2:

1) fresh Coriaria sinica leaf double centner is gathered;

2) in tank, add 30 kilogram of raw lime and 500 kilograms of running water, in this tank, add double centner Coriaria sinica leaf again after 8 hours, then stir, make mulberry leaves submerged, Coriaria sinica leaf soaks 9 hours in limewash;

3) limewash of above-mentioned tank is filtered, remove impurity;

4) will filter the solution that obtains and load sprayer, and carry out sprinklings lagerstroemia indica tree, sprayed once every 20 days, whole summer not there is powdery mildew in lagerstroemia indica tree, and spring and autumn can monthly spray once, prevent to occur powdery mildew.

Claims (1)

1. prevent and treat a method for lagerstroemia indica tree powdery mildew, it is characterized in that comprising following operating procedure:

1) fresh Coriaria sinica leaf is gathered;

2) in tank, add 6-10 parts of quicklimes and 100-150 parts of running water, after 6-10 hours, in this tank, add 15-20 parts of Coriaria sinica leaves again, Coriaria sinica leaf is soaked 8-12 hours in limewash;

3) limewash of above-mentioned tank is filtered, remove impurity;

4) loading sprayer by filtering the solution obtained, carrying out sprinkling lagerstroemia indica tree, spraying once every 15-20 days.