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Insecticide for preventing and curing false smut of rice

A fungicide and rice smut technology, applied in the field of pesticides, can solve the problems of less varieties of rice smut, poor control effect, high incidence rate of rice smut, etc., achieve significant control effect and reduce the effect of impact

Active Publication Date: 2007-10-10
ZHENJIANG AGRI SCI INST JIANGSU HILLY AREAS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the prevention and control of rice false smut has not attracted enough attention. The method of controlling rice smut is generally adopted in production, and its control effect is poor. Seven days before the smut is broken, farmers are unwilling to use medicines. There is no special agent and a separate period to prevent and control rice smut. As a result, in recent years, the incidence rate of rice smut has been high in some areas, and rice losses have been serious.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1 Embodiment 6

[0007] Embodiments 1 to 6 of the present invention are to compound Jinggangmycin and prochloraz respectively according to six weight ratios of 2.1:1, 1.8:1, 1.5:1, 1.2:1, 1:1 and 0.7:1. match.

[0008] Indoor determination of the inhibitory effect of the above six examples on rice smut bacteria. The growth rate method was used in the test, and each ratio was first made into a series of concentration gradients. Use a sterile puncher with a diameter of 0.5 cm to punch holes at the leading edge of the colony after secondary isolation and culture, then transfer to the PSA plate medium containing the drug, and place it in an incubator at 27±1°C After culturing for 10 days, the colony diameter was measured. Each treatment was repeated 4 times. The measured results were compared with the control to calculate the percentage inhibition. The 6 ratios were tested for synergy according to the method of synergy test. Calculate the IC of 6 mixtures and 2 single doses 50 value, calcula...

Embodiment 7

[0011] Jinggangmycin and prochloraz are compounded according to a weight ratio of 1.5:1, and then they are formulated with auxiliary agents and fillers to form a fungicide preparation, wherein Jinggangmycin and prochloraz account for 20% of the total weight of the preparation, The auxiliary agent accounts for 5% of the total weight of the preparation (wherein the surfactant sodium dodecylbenzene sulfonate is 2%, the wetting agent sodium lignosulfonate is 3%), and the rest is filler.

[0012] Comparative test is carried out to the control effect of the preparation control rice false smut of embodiment seven, method is as follows:

[0013] 30 grams, 40 grams, 50 grams, 60 grams per mu of the preparation of Example 7, 4 grams per mu of 50% prochloraz manganese salt wettable powder, 100 grams per mu of 50% carbendazim wettable powder, 20% Jinggangmycin soluble powder 50 grams per mu and a blank control totaled 8 treatments, each treatment was repeated 3 times, and the repeated are...

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PUM

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Abstract

A bactericide for preventing and treating green smut has an active component consisting of validamycin and prochloraz in weight ratio of (0.7-2.1):1.

Description

technical field [0001] The invention belongs to the technical field of pesticides, and relates to a fungicide for preventing and treating rice smut. Background technique [0002] Rice false smut is a common disease in the later stage of rice growth. The rice grains contaminated by the pathogen are harmful to humans and livestock. In the past, the occurrence was not serious. Popularization, the growth period of rice is prolonged, and rice smut often occurs seriously. At present, the prevention and control of rice false smut has not attracted enough attention. The method of controlling rice smut is generally adopted in production, and its control effect is poor. Seven days before the smut is broken, farmers are unwilling to use medicines. There is no special agent and a separate period to prevent and control rice smut. As a result, the incidence rate of rice smut has been relatively high in some areas in recent years, and rice losses have been serious. Contents of the inven...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N43/50A01P3/00A01N43/16
Inventor 束兆林缪康汪智渊吉沐祥赵束成傅反生蔡敏
Owner ZHENJIANG AGRI SCI INST JIANGSU HILLY AREAS
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