Biopesticide for controlling walnut black spot and preparation method

A biopesticide and black spot technology, applied in botany equipment and methods, chemicals for biological control, biocides, etc., can solve the problems of high chemical pesticide residues, environmental pollution, etc., and achieve good control effect, The effect of not polluting the environment

Inactive Publication Date: 2016-05-04
史运江
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, chemical pesticides are mainly used to prevent and control the disease, but the high residues of chemical pesticides cause environmental pollution.

Method used

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  • Biopesticide for controlling walnut black spot and preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0016] Embodiment 1: Weigh 320 grams of Gentiana chinensis, 400 grams of cassia twigs, 380 grams of radish, 420 grams of calendula chrysanthemum, 300 grams of calendula silver plate, 400 grams of Hypericum perforatum, 230 grams of brocade powder leaf, and 330 grams of Euphorbia narrow leaf , crushed and passed through a 50-mesh sieve, put the part under the sieve into a closed container, add an appropriate amount of ethanol, just to immerse the Chinese herbal medicine, cover and dip, stir, and after standing for 5 days, pour out the supernatant; add 50 %-75% ethanol in appropriate amount, impregnated for 5 days according to the above method, poured out, combined the two liquids, and stirred well to obtain the biological pesticide.

Embodiment approach 2

[0017] Embodiment 2: Weigh 370 grams of Gentiana chinensis, 450 grams of cassia twigs, 410 grams of radish, 460 grams of calendula chrysanthemum, 330 grams of calendula silver plate, 450 grams of Hypericum perforatum, 260 grams of brocade powder, and 360 grams of Euphorbia narrow leaf , the preparation method is the same as the first embodiment.

Embodiment approach 3

[0018] Embodiment 3: Weigh 420 grams of Gentiana chinensis, 500 grams of cassia twigs, 440 grams of radish, 500 grams of calendula chrysanthemum, 360 grams of calendula silver plate, 500 grams of Hypericum perforatum, 290 grams of brocade powder leaf, and 390 grams of Euphorbia narrow leaf , the preparation method is the same as the first embodiment.

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PUM

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Abstract

The invention discloses a biopesticide for controlling walnut black spot and a preparation method, belonging to the technical field of pesticides. Chinese herbal medicines, namely radix gentianae macrophyllae, cassia twig, radish, calendula officinalis, spanishneedles herb, hyperforin perforatum, thomson sreeper root or stem and kaleniczenk euphorbia herb, are subjected to grinding and ethanol extraction to obtain the biopesticide. According to field control trials, the control effect on walnut black spot is better than that of the control group; and particularly, the biopesticide is prepared from pure natural Chinese herbal medicines so as to avoid environmental pollution and residue.

Description

technical field [0001] The invention belongs to the technical field of biopesticides, in particular to a biopesticide for preventing and treating walnut black spot and a preparation method. Background technique [0002] Walnut black spot, also known as black rot, mainly harms young fruits and leaves, and can also harm twigs. When the young fruit is infected, small brown spots appear on the surface of the fruit with inconspicuous edges, and then the pieces turn black and reach deep into the pulp, causing the entire walnut and kernels to turn black or rot and fall off. After the near-ripe fruit is infected, it is limited to the exocarp first, and then spread to the mesocarp, causing the diseased part of the pericarp to fall off, the endocarp is exposed, and the nucleolus is intact. When the leaves are infected, small round or polygonal brown spots first appear on the veins, and then heal with each other after expansion. At present, the prevention and treatment of this diseas...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N65/24A01P1/00A01P3/00
CPCA01N65/24A01N65/00A01N2300/00
Inventor 史运江
Owner 史运江
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