A kind of Recompounded pesticide and application thereof that contains jinggangmeisu and Boscalid
Technical field
The invention belongs to technical field of compounded pesticide, be specifically related to a kind of Recompounded pesticide and application thereof that contains jinggangmeisu and Boscalid.
Background technology
Rice sheath blight disease is a kind of common disease, the frequently-occurring disease of China paddy rice.Common control medicament has jinggangmeisu etc., and jinggangmeisu claims again valida, belongs to the low toxicity bactericide.Jinggangmeisu has stronger interior absorption, is easily absorbed by mycelia and rapidly conduction in its body, suppresses mycelial growth and grows.Be mainly used in rice sheath blight disease, also can be used for the control of the crop pests such as rice green smut and vegetables and cotton, shortcoming is that the lasting period is short, and generally at 7~15 days, along with the long-term use of jinggangmeisu, preventive effect descends to some extent.
Boscalid is the pyridines bactericide of being succeeded in developing by BASF AG, and it is by the breathing of the oxygen of inhibition succinic acid matrix, thereby the energy metabolism of obstruction pathogen is to present bactericidal activity.This medicament disinfecting spectrum is wider, and can be used for various crop and prevent and treat the multiple fungal diseases such as gray mold, and also effective to the resistance bacterium of other medicaments.Because this medicament has outstanding infiltration conduction, has given medicament suitable lasting effect, thereby can obviously reduce spraying times.Indoor isolated test proves, Boscalid to the rice sheath blight disease mycelia have stronger inhibitory action (Chen Hongzhou etc., the Agriculture in Jiangxi journal, 2011,23(5): 97~99).The shortcoming of Boscalid is that use cost is higher.Boscalid is used for preventing and treating rice sheath blight disease and the rice green smut field control effectiveness test yet there are no report.
Summary of the invention
For the problem that prior art exists, the object of the invention is to design provides a kind of Recompounded pesticide of jinggangmeisu and Boscalid and technical scheme of application thereof of containing.This Recompounded pesticide is good, quick-acting soon to the control efficiency of rice sheath blight disease and rice green smut, persistence is long, cost is low.
Described a kind of Recompounded pesticide that contains jinggangmeisu and Boscalid is characterized in that containing Boscalid 0.1~50%, jinggangmeisu 0.1~50%.
Described a kind of Recompounded pesticide that contains jinggangmeisu and Boscalid, the content that it is characterized in that Boscalid is 0.2~30%, the content of jinggangmeisu is 0.5~45%.
Described a kind of Recompounded pesticide that contains jinggangmeisu and Boscalid, the content that it is characterized in that Boscalid is 0.5~25%, the content of jinggangmeisu is 1.5~40%.
Described a kind of Recompounded pesticide that contains jinggangmeisu and Boscalid, the content that it is characterized in that Boscalid is 1.5~20%, the content of jinggangmeisu is 2~35%.
Described a kind of Recompounded pesticide that contains jinggangmeisu and Boscalid, the content that it is characterized in that Boscalid is 2~15%, the content of jinggangmeisu is 5~30%.
Described a kind of Recompounded pesticide that contains jinggangmeisu and Boscalid, the content that it is characterized in that Boscalid is 4~8%, the content of jinggangmeisu is 10~20%.
Described a kind of Recompounded pesticide that contains jinggangmeisu and Boscalid, the content that it is characterized in that Boscalid is 5~7%, the content of jinggangmeisu is 12~16%.
The described a kind of application of Recompounded pesticide in preventing and treating rice sheath blight disease and rice green smut that contains jinggangmeisu and Boscalid.
Above-mentioned a kind of Recompounded pesticide that contains jinggangmeisu and Boscalid can be made any formulation that allows on the Recompounded pesticides such as water dispersible granules, aqueous suspension agent, wetting powder.When making formulation, the reagent of employing is and well known to a person skilled in the art common agents, does not give unnecessary details at this.
Above-mentioned a kind of Recompounded pesticide that contains jinggangmeisu and Boscalid is together composite with jinggangmeisu and Boscalid, has very strong synergistic effect, control efficiency to rice sheath blight disease and rice green smut is good, can reach more than 95% through its control rate of field trial; Continuation is strong, and after 35 days, its control rate also can reach more than 85%; Production cost is low, reduces more than 50% than independent use Boscalid.
The proportioning that relates among the present invention is the percentage by weight of the pure material of active ingredient.
Embodiment
Further specify the present invention below in conjunction with embodiment.Recompounded pesticide of the present invention can adopt following proportioning to produce.
Prescription one: Boscalid 5%, jinggangmeisu 5%.
Prescription two: Boscalid 2%, jinggangmeisu 10%.
Prescription three: Boscalid 3%, jinggangmeisu 45%.
Prescription four: Boscalid 1%, jinggangmeisu 30%.
Prescription five: Boscalid 0.1%, jinggangmeisu 6%.
Prescription six: Boscalid 0.4%, jinggangmeisu 32%.
Prescription seven: Boscalid 0.5%, jinggangmeisu 20%.
Prescription eight: Boscalid 25%, jinggangmeisu 5%.
Prescription nine: Boscalid 15%, jinggangmeisu 1%.
Prescription ten: Boscalid 18%, jinggangmeisu 0.6%.
Fill a prescription 11: Boscalid 12%, jinggangmeisu 0.2%.
Fill a prescription 12: Boscalid 20%, jinggangmeisu 0.25%.
Fill a prescription 13: Boscalid 10%, jinggangmeisu 0.1%.
Fill a prescription 14: Boscalid 45%, jinggangmeisu 50%.
That above-mentioned prescription can be made into water dispersible granules, aqueous suspension agent, wetting powder carrying out field trial.
Embodiment:
1. chemicals treatment
Table 1 reagent agent experimental scheme
2. test method:
Each residential quarter 20m
2, repeat 3 times.In Rise's boot period and each medication of cut phase once.Stage of yellow ripeness behind the medicine, the incidence of investigation rice sheath blight disease and rice green smut.Investigation drug effect method is: 5 samplings of each residential quarter diagonal, get 5 clumps at every, and record total strain number, diseased plant number and sick progression, calculate preventive effect.
3. results and analysis
Table 2 is respectively processed 10d preventive effect (%) behind the chemical control rice sheath blight disease medicine
Table 3 is respectively processed 10d preventive effect (%) behind the sick medicine of chemical control rice green smut
Table 4 is respectively processed 35d preventive effect (%) behind the chemical control rice sheath blight disease medicine
Table 5 is respectively processed 35d preventive effect (%) behind the chemical control rice green smut medicine
Field control effectiveness test is the result show, Boscalid and validamycin composition have good preventive effect to rice sheath blight disease and rice green smut, and control efficiency is compared with single dose has synergistic effect, can reduce the usage amount of agricultural chemicals, reduces cost.
Prescription three, four, six, eight, nine and 14 carries out above-mentioned field trial, all can reach more than 95% to rice sheath blight disease and rice green smut control rate; After 35 days, its control rate also can all reach more than 85%.