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Control method and application of potato late blight

A potato late blight, potato technology, applied in the field of prevention and control of potato late blight, to achieve the effect of improving the control level, simple operation, and remarkable effect

Inactive Publication Date: 2018-11-27
ACAD OF AGRI SCI ENSHI TUJIA MIAOAUTONOMOUS PREFECTURE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] An object of the present invention is to provide a method for preventing and treating potato to alleviate the problems of inadvertent, blind or overdosing in the prevention and control of potato late blight.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0105] A control method for potato late blight, mainly comprising the following steps:

[0106] (a) Before sowing seed potatoes, dry-mix the seeds, mix mancozeb and talcum powder at a ratio of 1:2, and then mix them with seed potatoes before sowing;

[0107] (b) at the potato seedling stage, spray 600 times of solution of Propineb every 7 days;

[0108] (c) After the emergence of late blight, spray 600 times of propamocarb at the initial stage, and spray 1500 times of osmostrobin at the later stage.

Embodiment 2

[0110] A control method for potato late blight, mainly comprising the following steps:

[0111] (a) Before sowing seed potatoes, adopt dry mixing method for seed dressing, mix Cyazofamid and talcum powder at a ratio of 1:10, and then mix with seed potatoes before sowing;

[0112] (b) At the potato seedling stage, spray mancozeb 600 times solution every 7 days;

[0113] (c) After the emergence of late blight, spray 1000 times of propamocarb at the initial stage, and spray 3000 times of osmostrobin at the later stage.

Embodiment 3

[0115]A control method for potato late blight, mainly comprising the following steps:

[0116] (a) Before sowing seed potatoes, dry-mixing is used for seed dressing, and fluazinam and talcum powder are mixed in a ratio of 1:3, and then mixed with seed potatoes before sowing;

[0117] (b) at the potato seedling stage, spray 800 times of propionate every 8 days;

[0118] (c) After the emergence of late blight, spray 500 times liquid of fosmo-aluminum at the initial stage, and spray 3000 times liquid of osmostrobin at the later stage.

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PUM

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Abstract

The invention belongs to the technical field of plant protection, in particular to a potato late blight control method and application thereof. A method for control potato late blight comprises that follow steps: (a) seed dressing with a contact agent and / or an internal absorbent agent before seed potato is sown; (b) Spraying contact agents at the potato seedling stage; (c) aft that occurrence ofthe late blight, spraying an internal inhalant agent at the initial stage and a permeable agent at the lat stage. This method is simple and feasible. The control effect of this method is over 90% in general years and over 80% in epidemic years. The control effect is remarkable.

Description

technical field [0001] The invention relates to the technical field of plant protection, in particular to a control method and application of potato late blight. Background technique [0002] Potato late blight is a devastating disease caused by Phytophthora infestans, which can cause stem and leaf blight or premature death, and can cause tuber rot in the field and during storage. Potato infestans mainly overwinters in diseased potatoes with mycelium, and the main source of primary infection is diseased seed potatoes in northern my country, while diseased residues and infected spontaneous seedlings in southern production areas can also become the next source of infection. The primary source of infection for a season. After the diseased potato is sown, the mycelium on the potato piece develops upward with the young shoots and the plant. Generally, when the relative humidity continues to be above 90% and the temperature is above 10°C, the leaves are prone to symptoms and form ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01G13/00A01C1/06
CPCA01C1/06A01G13/00
Inventor 肖春芳王甄张等宏沈艳芬高剑华张远学闫雷杨国才陈家吉
Owner ACAD OF AGRI SCI ENSHI TUJIA MIAOAUTONOMOUS PREFECTURE
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