Rice seed treating agent containing JS399-19 and cartap hydrochloride

A technology for cyanobacteryl and rice seeds, which is applied in the field of pesticides, can solve the problems of decreased control effect, physiological race changes of pathogens, reduced yield and the like, and achieves the effect of significant control effect.

Inactive Publication Date: 2009-09-23
JIANGSU LVDUN PLANT PROTECTION AGROCHEM EXPERIMENTAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The current phenomenon of "spikelet head" is caused by the disease of dry acerbity nematodes, and carelessness in production can result in a 20-50% reduction in production; at present, prochloraz, carbendazim, acetochlor, and dithiocyanate are commonly used in production Seed soaking or seed dressing with methyl methane can prevent and control rice bakanae disease, but the physiological race of the pathogen will change due to long-term use, and drug resistance will occur, resulting in a decline in the control effect year by year

Method used

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  • Rice seed treating agent containing JS399-19 and cartap hydrochloride
  • Rice seed treating agent containing JS399-19 and cartap hydrochloride
  • Rice seed treating agent containing JS399-19 and cartap hydrochloride

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1 Embodiment 5

[0009] Embodiment 1 to Embodiment 5 of the present invention compound cyclostrobin and cartap according to five weight ratios of 1:10, 1:5, 1:1, 5:1 and 10:1 respectively. Dissolve a small amount of cyclostrobin with acetone to dissolve the original drug, directly dissolve cartap sterile water, mix and make 5 mixed mother solutions in different proportions, and prepare 100ml of each of the above 5 mixed solutions with sterile water, A drug solution with a concentration of 2000 μg / ml.

[0010] Dilute the above-mentioned medicament with water to 4000 times, 8000 times, 12000 times and 15000 times of the total weight of the two active ingredients, use the seeds of Wuyunjing No. Soak for 48 hours, take 100 seeds after soaking, centrifuge to separate nematodes, investigate dead nematodes and live nematodes, calculate the control effect of dry apical nematodes, accelerate germination and sow, take 100 seeds, compare with clear water, dry seedlings and seedlings, in The control effe...

Embodiment 6 Embodiment 7

[0014] Embodiment 6 to Embodiment 7 of the present invention compound cyclostrobin and cartap according to five weight ratios of 1:10, 1:5, 1:1:5:1 and 10:1 respectively.

[0015] Dilute the above-mentioned medicament with water to 500 times the total weight of the two active ingredients, use the seeds of Wuyunjing No. 7 with bakanae pathogen and dry sharp nematode, and evenly dress the seeds. 100 seeds, centrifuge to separate nematodes, investigate dead nematodes and live nematodes, calculate the control effect of dry apex nematodes, accelerate germination and sow, take 100 seeds, compare with clean water, dry seedlings and raise seedlings, investigate bakanae disease 30 days after rice sowing Effectiveness. The results are shown in Table 2:

[0016] Table II

[0017]

Embodiment 11

[0019] Cyclostrobin and cartap are compounded according to a weight ratio of 1:1, and then they are formulated with auxiliary agents and fillers into a treatment agent preparation, wherein cyclostrobin and cartap account for 20% of the total weight of the preparation. %, the auxiliary agent accounts for 6% of the total weight of the preparation (wherein the surfactant sodium dodecylbenzene sulfonate is 3%, the wetting agent sodium lignosulfonate is 3%), and the rest are fillers to make 20% cyanobacteria Ester + cartap wettable powder.

[0020] Comparative test is carried out to the control effect of embodiment 11 preparations preventing and treating rice bakanae disease and dry sharp nematode disease, method is as follows:

[0021] Dilute the above 20% cyclostrobin + cartap wettable powder with water to 400 times, 600 times, 800 times, 1000 times of the weight of the preparation, dilute the 25% cyclostrobin suspension to 3000 times of the weight of the preparation, Dilute 25%...

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Abstract

The invention belongs to the technical field of pesticide, and relates to a rice seed treating agent containing JS399-19 and cartap hydrochloride, which is used for preventing bakanae disease of rice and rice white tip. The effective components are js 399-19 and cartap hydrochloride, wherein the weight ratio of the js 399-19 and the cartap hydrochloride is 1:10-10:1. The ratio of the weight sum of the effective components of the js 399-19 and the cartap hydrochloride to the total weight chemical is 5-70 percent. The treating agent also comprises additive which is 5-30 percent of the total weight of the medicament, and the balance of filling or water. The treating agent has remarkable prevention effect on the bakanae disease of rice and the rice white tip through the practical test.

Description

technical field [0001] The invention belongs to the technical field of pesticides, and relates to a rice seed treatment agent containing cyclostrobin and cartap for preventing and treating rice bakanae disease and dry sharp nematode disease. Background technique [0002] Rice bakanae disease and dry sharp nematode disease are important diseases that often occur in rice production, especially in japonica rice varieties. Both diseases are spread by rice seeds carrying bacteria and nematodes. The current phenomenon of "spikelet head" is caused by the disease of dry acerbity nematodes, and carelessness in production can result in a 20-50% reduction in production; at present, prochloraz, carbendazim, acetochlor, and dithiocyanate are commonly used in production Seed soaking or seed dressing with methyl methane etc. can prevent and control rice bakanae disease, but the physiological race of the pathogen changes due to long-term use, and drug resistance occurs, so the control effec...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N47/12A01N37/44A01P3/00A01P5/00A01C1/08
Inventor 吉沐祥缪康赵来成束兆林吴祥庄桂花
Owner JIANGSU LVDUN PLANT PROTECTION AGROCHEM EXPERIMENTAL
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